Mastering Gross Anatomy

I thought I would write a short essay about my experience with Gross Anatomy class when I was in medical school. This class can cause some angst and turmoil for some freshman medical students because it generally requires the greatest adjustment in terms of study skills and habits.

First of all, Gross Anatomy does not require any great feats of intellectual insight. The material to be mastered takes diligent and systematic study. In short, there is NO substitute for just grinding through the process and taking the time to organize the material for study. At my school, Gross Anatomy also included Embryology which, made Gross Anatomy (GA) far easier to organize in my opinion.

During orientation, we were given a huge syllabus complete with objectives, lecture schedule and lab schedule arranged by topic. We were also given an exam schedule which allowed us to know exactly how much material each exam would cover and when the exams would be given. The breakdown was along the lines of Exam 1 – Extremities and Back Muscles, Exam 2- Thorax, Abdomen and Pelvis, Exam 3 – Head and Neck. This division made sense because dissection and study of the Back Muscles and Extremities requires far less manual precision than dissection of Head and Neck Structures. By the time we reached study of Head and Neck, we were old “pros” at dissection and finding structures.

My best tools for study of Back Muscles and Extremities were my embryology book and one of the skeletons. Our anatomy department had loads of bones and skeletons everywhere in the gross lab. My first approach was to sit down with the syllabus and look over what would be covered in lab and lecture. My next approach was to skim the material in the syllabus looking carefully at the objectives. This usually took less than 15 minutes tops and I was on to the reading making notes in the margins of the text that corresponded to material that was mentioned in the objectives.

My GA textbook was Moore’s Clinical Anatomy for Medical students. I had the binding removed from this book so that I could place the reading pages in a three ring binder. I always had something readily available for reading. My next step was to photocopy or scan the Netter plates that corresponded to the lecture that we would be covering. I would note with a pink highlighter, any structures that were mentioned in the syllabus. That was my prep for each lecture. After hearing the lecture, I would study my notes (or the noteservice notes) and do the same prep for the next lecture.

In prep for lab, I would take out my dissector and make a check sheet of every structure that were expected to observe in lab. I would organize them according to superficial, deep, nerve supply and blood supply. When it came to the muscles, I would list every origin and insertion and action on a sheet with a check list. Before I began dissection, I would visualize them on a skeleton and visualize the actions. I learned the nerve and blood supply at this point too. For example, let’s say that I was looking at the muscles of the back. My first task was to organize them into extrinsic back muscles (associated with the movement of limbs) and intrinsic back muscles (associated with movement of the spine). I would then organize them into superficial and deep layers.

My coverage of the anatomy of the back would have started with organizing the anatomy into surface anatomy (my fiance was a willing model for this stuff), bony anatomy (learning all of the vertebral bones), spinal cord anatomy and then the back muscles. Associated with all of these lectures were embryology lectures on development of the muscles, bones and nerves. But back to the my organization scheme. The embryology lectures took place before dissection so that we had that background before moving into the lab.

Let’s say that today’s lecture included the muscles of the back. I would have my Netter plates (with annotations) and my key words from the objectives in my folder for that lecture (the material that I had prepared the evening before). I would listen to the lecture taking notes as I needed them and adding notes to my plates or on paper. We would then head off to the lab where I would look at the skeleton and trace out every origin (medial attachement) and insertion (lateral attachement) for each of the back muscles. Lets look at the Latissimus dorsi for a specific example. The medial attachement is the spinous processes of the six most inferior thoracic vertebrae and the lumbar vertebrae, inferiorly: the iliac crest and the thoracolumbar fascia and the inferior 3 to 4 ribs. This muscle inserts on the floor of the intertubercular groove of the humerus. By locating the origins and insertions of a muscle, I would be able to picture the action of that muscle as it contracts. In the case of the latissimus dorsi, I knew for sure that this muscle was not an intrinsic back muscle but functioned primarily on the humerus (an arm bone).

I would also learn the blood and nerve supply as I studied the skeleton. The nerve supply is the Thoracodorsal nerve which can be found heading through the axilla and to this muscle. One of my instructors like to say that the extrinsic back muscles “crawled out onto the back and took their blood and nerve supply with them”. This statement easily explains why the thoracodorsal artery is a distal branch of the axillary artery and that I could trace the small branches on the anterior surface of the latissimus dorsi muscle back to the distal part of the axillary artery which is a continuation of the subclavian artery. The nerve system is the same as the thoracodorsal nerve is a branch off the posterior cord of the bracheal plexus which travels to the LD muscle that is located on the posterior, inferior portion of the superfical back. In short, by organizing the material before heading into the dissection lab, I knew where to look for nerves and vessels; the actions of the muscle and bony landmarks all at the same time.

My GA class also required that we study radiographs, CTs and MRIs in addition to our dissection. I studied the available materials along with my dissections. When I came to the dissection lab, I had a checklist of all of the materials that I wanted to review and master. I can tell you that I was in the dissection lab at least 10 hours per week outside of the dissection lab times. On the weekends, I would review the week’s materials which usually took three or so hours. This study was done with my study group. I also looked at every cadaver in the lab weekly in addition to my own. We kept a running list of excellent dissections (more likely to be tested) at different tanks. We always asked permission before entering another group”s tank.

Another thing my study group did was ask one of the instructors (usually the course director) to spend 30 minutes quizzing us a week before the lab practical. He was totally willing to work with a five-student group. We asked him to be picky and brutal. Usually these sessions made us go back and work a bit more on our identification of structures. Our instructor was very good about telling us how to identify structures on a lab practical. He always liked to show us great landmarks.

The most important aspect of GA study (any course study) in medical school, is not to get behind. If you miss something (illness) you need to go immediately to where the class in and catch up on the weekend. Some students get behind and attempt to catch up and never get there. Again, catch up on weekends (they don’t lecture on Saturdays and Sundays). Also, don’t underestimate how much your classmates can be great resources for you. I never found a classmate who wasn’t willing to review structures with me in the lab. The biggest gunner gets an extra boost by helping classmates who are struggling. Everytime I reviewed something, I learned it that much better.

Some caveats: You cannot organize the material for your classmates. Each person has to find their own system and each person has to learn the material for themselves. Working with a study group helps to reinforce the material but each person is responsible for their own learning. Don’t even try to work with a group until you have done a thorough mastery of the material for yourself. If you are isolated, you lose out on the great reinforcement so don’t isolate yourself. If you have a family and other outside obligations, schedule some study group time even if it is minimal. Medicine is not a solo activity and you will have to rely on your colleagues when you are in practice. Medical school is good practice for learning to work as a group.

Well, the above is the essence of my system for GA and embrylogy. I can tell you that I spent plenty of time in the Gross lab and working on GA. It was interesting and it helped me appreciate my classmates even more. We all worked together and we all learned together. GA is not a course that you can sit down, memorize and master in a vacuum. You need feedback and your instructors/classmates are great resources. While there is much to learn and master, it’s not all rote memorization. My classmates that were great rote memorizers did fine on the tests but crashed on USMLE Step I in most cases. The understanders and intergrator (like me) did equally well on the exams and on USMLE Step I. It takes both.

I would also say that GA is not a course to be feared but a course to be mastered. A full 75% of my class failed the first GA lecture exam but only about 2 people failed the course itself. In most schools, you are not penalized for getting off to a slow start as long as you figure out what you need to do to get your information mastered. For me, GA was daily study, preparation and mastery. I also forged a great relationship with the GA instruction staff (I was the class rep for this course) so that we all could do our best. The instructors were not there to “fail” us but to help us master this neat course. In the end, it worked out fine.

Gross Anatomy

I thought I would write a short essay about my experience with Gross Anatomy class when I was in medical school. This class can cause some angst and turmoil for some freshman medical students because it generally requires the greatest adjustment in terms of study skills and habits.

First of all, Gross Anatomy does not require any great feats of intellectual insight. The material to be mastered takes diligent and systematic study. In short, there is NO substitute for just grinding through the process and taking the time to organize the material for study. At my school, Gross Anatomy also included Embryology which, made Gross Anatomy (GA) far easier to organize in my opinion.

During orientation, we were given a huge syllabus complete with objectives, lecture schedule and lab schedule arranged by topic. We were also given an exam schedule which allowed us to know exactly how much material each exam would cover and when the exams would be given. The breakdown was along the lines of Exam 1 – Extremities and Back Muscles, Exam 2- Thorax, Abdomen and Pelvis, Exam 3 – Head and Neck. This division made sense because dissection and study of the Back Muscles and Extremities requires far less manual precision than dissection of Head and Neck Structures. By the time we reached study of Head and Neck, we were old “pros” at dissection and finding structures.

My best tools for study of Back Muscles and Extremities were my embryology book and one of the skeletons. Our anatomy department had loads of bones and skeletons everywhere in the gross lab. My first approach was to sit down with the syllabus and look over what would be covered in lab and lecture. My next approach was to skim the material in the syllabus looking carefully at the objectives. This usually took less than 15 minutes tops and I was on to the reading making notes in the margins of the text that corresponded to material that was mentioned in the objectives.

My GA textbook was Moore’s Clinical Anatomy for Medical students. I had the binding removed from this book so that I could place the reading pages in a three ring binder. I always had something readily available for reading. My next step was to photocopy or scan the Netter plates that corresponded to the lecture that we would be covering. I would note with a pink highlighter, any structures that were mentioned in the syllabus. That was my prep for each lecture. After hearing the lecture, I would study my notes (or the noteservice notes) and do the same prep for the next lecture.

In prep for lab, I would take out my dissector and make a check sheet of every structure that were expected to observe in lab. I would organize them according to superficial, deep, nerve supply and blood supply. When it came to the muscles, I would list every origin and insertion and action on a sheet with a check list. Before I began dissection, I would visualize them on a skeleton and visualize the actions. I learned the nerve and blood supply at this point too. For example, let’s say that I was looking at the muscles of the back. My first task was to organize them into extrinsic back muscles (associated with the movement of limbs) and intrinsic back muscles (associated with movement of the spine). I would then organize them into superficial and deep layers.

My coverage of the anatomy of the back would have started with organizing the anatomy into surface anatomy (my fiance was a willing model for this stuff), bony anatomy (learning all of the vertebral bones), spinal cord anatomy and then the back muscles. Associated with all of these lectures were embryology lectures on development of the muscles, bones and nerves. But back to the my organization scheme. The embryology lectures took place before dissection so that we had that background before moving into the lab.

Let’s say that today’s lecture included the muscles of the back. I would have my Netter plates (with annotations) and my key words from the objectives in my folder for that lecture (the material that I had prepared the evening before). I would listen to the lecture taking notes as I needed them and adding notes to my plates or on paper. We would then head off to the lab where I would look at the skeleton and trace out every origin (medial attachement) and insertion (lateral attachement) for each of the back muscles. Lets look at the Latissimus dorsi for a specific example. The medial attachement is the spinous processes of the six most inferior thoracic vertebrae and the lumbar vertebrae, inferiorly: the iliac crest and the thoracolumbar fascia and the inferior 3 to 4 ribs. This muscle inserts on the floor of the intertubercular groove of the humerus. By locating the origins and insertions of a muscle, I would be able to picture the action of that muscle as it contracts. In the case of the latissimus dorsi, I knew for sure that this muscle was not an intrinsic back muscle but functioned primarily on the humerus (an arm bone).

I would also learn the blood and nerve supply as I studied the skeleton. The nerve supply is the Thoracodorsal nerve which can be found heading through the axilla and to this muscle. One of my instructors like to say that the extrinsic back muscles “crawled out onto the back and took their blood and nerve supply with them”. This statement easily explains why the thoracodorsal artery is a distal branch of the axillary artery and that I could trace the small branches on the anterior surface of the latissimus dorsi muscle back to the distal part of the axillary artery which is a continuation of the subclavian artery. The nerve system is the same as the thoracodorsal nerve is a branch off the posterior cord of the bracheal plexus which travels to the LD muscle that is located on the posterior, inferior portion of the superfical back. In short, by organizing the material before heading into the dissection lab, I knew where to look for nerves and vessels; the actions of the muscle and bony landmarks all at the same time.

My GA class also required that we study radiographs, CTs and MRIs in addition to our dissection. I studied the available materials along with my dissections. When I came to the dissection lab, I had a checklist of all of the materials that I wanted to review and master. I can tell you that I was in the dissection lab at least 10 hours per week outside of the dissection lab times. On the weekends, I would review the week’s materials which usually took three or so hours. This study was done with my study group. I also looked at every cadaver in the lab weekly in addition to my own. We kept a running list of excellent dissections (more likely to be tested) at different tanks. We always asked permission before entering another group”s tank.

Another thing my study group did was ask one of the instructors (usually the course director) to spend 30 minutes quizzing us a week before the lab practical. He was totally willing to work with a five-student group. We asked him to be picky and brutal. Usually these sessions made us go back and work a bit more on our identification of structures. Our instructor was very good about telling us how to identify structures on a lab practical. He always liked to show us great landmarks.

The most important aspect of GA study (any course study) in medical school, is not to get behind. If you miss something (illness) you need to go immediately to where the class in and catch up on the weekend. Some students get behind and attempt to catch up and never get there. Again, catch up on weekends (they don’t lecture on Saturdays and Sundays). Also, don’t underestimate how much your classmates can be great resources for you. I never found a classmate who wasn’t willing to review structures with me in the lab. The biggest gunner gets an extra boost by helping classmates who are struggling. Everytime I reviewed something, I learned it that much better.

Some caveats: You cannot organize the material for your classmates. Each person has to find their own system and each person has to learn the material for themselves. Working with a study group helps to reinforce the material but each person is responsible for their own learning. Don’t even try to work with a group until you have done a thorough mastery of the material for yourself. If you are isolated, you lose out on the great reinforcement so don’t isolate yourself. If you have a family and other outside obligations, schedule some study group time even if it is minimal. Medicine is not a solo activity and you will have to rely on your colleagues when you are in practice. Medical school is good practice for learning to work as a group.

Well, the above is the essence of my system for GA and embrylogy. I can tell you that I spent plenty of time in the Gross lab and working on GA. It was interesting and it helped me appreciate my classmates even more. We all worked together and we all learned together. GA is not a course that you can sit down, memorize and master in a vacuum. You need feedback and your instructors/classmates are great resources. While there is much to learn and master, it’s not all rote memorization. My classmates that were great rote memorizers did fine on the tests but crashed on USMLE Step I in most cases. The understanders and intergrator (like me) did equally well on the exams and on USMLE Step I. It takes both.

I would also say that GA is not a course to be feared but a course to be mastered. A full 75% of my class failed the first GA lecture exam but only about 2 people failed the course itself. In most schools, you are not penalized for getting off to a slow start as long as you figure out what you need to do to get your information mastered. For me, GA was daily study, preparation and mastery. I also forged a great relationship with the GA instruction staff (I was the class rep for this course) so that we all could do our best. The instructors were not there to “fail” us but to help us master this neat course. In the end, it worked out fine.

First Year of Medical School

A short while back, some of my pre-med students asked me about memories of medical school. I thought it might be fun to write about some of those here as well as residency experience so here goes from the beginning…

My medical school had a classical curriculum with problem-based-learning intergrated. We had the typical first-year, second-year types of classes. Lectures went from 0800h to 1600h daily. We had some Tuesdays or Thursdays when we would be able to get out earlier but we spent loads of time in class (way more than students currently attending). Some of my classes had computer-based-learning exercises and some had laboratory projects that had to be completed. In short, school was the equivalent of a full-time job with much time spent on weekends reviewing and keeping up with the pace. The best thing was that all of my classes were very interesting.

My first lecture of medical school was in Biochemistry. The professor essentially covered an entire Organic Chemistry course in a 50-minute lecture. The material was extremely detailed and presented in volumes. This particular professor had a reputation for “rocket” lecture delivery and he got the job done. The great thing was that I understood everything well and could see that this was the basis of the next 50-minute lecture which started off with lipid biochemistry.

My next class was the first part of Gross Anatomy. Our lecture was on surface anatomy and types of neurons. Each lecture was 50 minutes followed by a 10-minute break. I think those 50-minute lectures were the beginning of my 50-minute attention span. After lunch, Gross Anatomy lab started with a brief introduction and then a long laboratory on the vertebral column. We were all given bone boxes (containing human bones) to take home for further study. Every bone was present except the skull bones. Needless to say, we were required to learn every bone and every part of every bone.

By the time the day was done, I had received the equivalent of about 3 weeks worth of undergraduate lectures on one day. Since I had my syllabi, I knew what would be covered in lecture and I knew what readings and material would have to be previewed for the next days lecture. After each lecture was completed, I would quickly fill in any gaps in my notes and briefly scan through my notes for completeness. Over lunch, I would start to memorize as much of my morning lecture as possible too. We had an hour for lunch so I would grab something quick and then spend the rest of the time pouring over my notes.

On the way home, I would study some more or just watch people. I took public transportation because I didn’t want to worry about driving. My commute time was my time to relax and think about the day or plan my evening. When I got home, I would grab my gym bag so that I could get a quick swim in before dinner. I would dine with my fiance and then hit the books for a couple of hours. By that time, it would be around 8pm so I would go to bed. I would wake up at 2am and study until 6 am. I would then take a shower and get off to school.

When I was studying, I would finish studying the material that had been presented that day. I would then review the lectures for the day before and preview the materials for the next day’s lecture. On the weekend, I would review the entire week’s lectures in addition to reviewing an entire week’s dissection in the Gross Anatomy lab.

I made study tapes to drill structures and notes so that I could listen to them while I was walking or running. I would also make concept maps and fill them in on large sheets of paper as I went through biochemistry. I always wanted to keep the “big” picture in mind as I studied.

We had an exam week about every five weeks during the semester. There would be two “reading” days (read catch up) and then exams would begin. For Gross Anatomy, we would have the lecture exam in the morning and the laboratory practical exam in the afternoon. Between the exams, I would go to the art museum and get completely away from campus. I couldn’t stand to be around people who were so stressed about the exams.

In addition to Anatomy and Biochemistry, we had lectures in Psychiatry and Introduction to the Practice of Medicine. The Psychiatry lectures were always interesting and covered topics like development, personality disorders, sexuality, psychiatric drugs and the roles of various types of psychiatrists. Lectures in the practice of medicine covered topics like law and medicine, types of practices, alternative and complimentary medicine, history of medicine and medical education models. Psychiatry and Introduction to Medicine provided a bit of relief from the rigor of Biochemistry and Gross Anatomy but we were tested on these subjects so they required our attention too.

Our first semester ran from the middle of August to the second week of December. I can promise that the time goes by very quickly and soon Christmas vacation upon us. At the end of the first semester, we were done with Gross Anatomy and Biochemistry but still had more lectures in Psychiatry and Practice of Medicine. In addition, we had Histology, Microbiology/Immunology and Neuroscience lectures too. Second semester had a bit more material and more lectures. In addition, we had to dissect brains and spinal cords in Neuroanatomy. We were also given slide boxes with every type of tissue for histology. We would learn to recognize tissues and electron micrographs of every type of cell.

By the time second semester is over, we had learned a huge amount of material. Most people were happy to get exams done and get home for the summer. I was selected to become an instructor for the students who would be coming into our pre-matriculation program. I would be teaching Biochemistry primarily in addition to Gross Anatomy and Immunology. It was an honor to be asked to instruct in this program and I knew that I would enjoy working with these students.

The students who participated in the prematriculation program were medical and dental students with a conditional acceptance into medical or dental school. By successfully completing this program, these students are offered a seat in the school that they were conditionally admitted to. During this rigorous summer, we gave study tips, extensive reviews and got to know some very determined folks. In addition, these students have a huge head start when the actual courses start because they have been exposed to the material. It is a great program and I enjoyed the summer. In addition, we, the instructors are paid very nicely and can get some research done at the same time.

I finished my first year strong with honors and a much stronger interest in medicine than before I started school. When I looked back on all that I had learned, I was amazed. Little did I know that second year had even more to learn and would build upon my foundation of first year.