The first year of MBBS is where students either build a system that carries them through five years, or spend a year reacting to deadlines. Before you can plan anything, you need to know exactly which subjects you’re facing and what each one actually demands.
This is the first-year subject list under the current NMC competency-based medical education (CBME) curriculum, explained by someone who has already been through it at a government medical college in Maharashtra.
How the first year is structured
Under CBME, MBBS is divided into three phases. Phase I is your first professional year. It opens with a short Foundation Course and is built around three pre-clinical subjects, plus the longitudinal AETCOM and Early Clinical Exposure threads that run across all phases.
The subjects you will study
1. Foundation Course (first two weeks)
A short orientation block before regular teaching begins. It covers communication, ethics, basic life support, computer skills and an introduction to community health. Take it seriously — the communication and ethics habits it builds return in your clinical years.
2. Human Anatomy
Anatomy is the heaviest subject of first year and the one students most often underestimate. It is split into:
- Gross anatomy — region by region, reinforced by dissection.
- Histology — microscopic structure of tissues and organs, plus slide identification.
- Embryology — development from gametes to organ systems.
- Osteology and neuroanatomy basics — bones and the fundamentals of the nervous system.
Anatomy also feeds heavily into NEET PG later, so the effort pays off twice. Book choice is covered in my first-year MBBS book list.
3. Physiology
Physiology explains how a healthy body functions — general physiology, nerve and muscle, blood, cardiac, respiratory, renal, gastrointestinal, endocrine, and nervous system physiology. It rewards understanding over memorisation. The students who do well here learn to connect function to clinical signs early.
4. Biochemistry
Biochemistry covers biomolecules, enzymes, metabolism, molecular biology and clinical biochemistry. It is often called the most “formula-like” first-year subject. The practicals (estimation of glucose, proteins, enzymes) are scored and worth preparing properly.
5. AETCOM (Attitude, Ethics and Communication)
AETCOM runs across all phases and is assessed. It develops professionalism, informed consent, confidentiality and communication — untested-feeling modules that matter enormously once you’re on the floors.
6. Early Clinical Exposure (ECE)
ECE takes you into wards and clinics from first year so anatomy and physiology connect to real patients. Do not treat it as a free period — it is where the clinical curiosity starts.
Subject workload at a glance
| Subject | Core content | Assessment |
|---|---|---|
| Anatomy | Gross, histology, embryology, osteology, neuroanatomy | Theory papers + practical/dissection viva |
| Physiology | Systemic + general physiology, practicals | Theory papers + practical viva |
| Biochemistry | Metabolism, enzymes, molecular biology, clinical biochem | Theory papers + practical viva |
| AETCOM | Ethics, professionalism, communication | Continuous, module-based |
| ECE | Ward and clinic exposure | Continuous, log-based |
Your affiliating university (MUHS in Maharashtra) sets the exact paper pattern and marks — confirm the current scheme with your department at the start of the year.
How to divide your study time
- Anatomy gets the most hours early in the year because it is the heaviest and most cumulative.
- Physiology rewards daily reading alongside lectures — you cannot cram a mechanism you never understood.
- Biochemistry is best done in short, frequent sessions, drawing pathways rather than reading them.
- Never skip practicals. Viva and practical marks are some of the easiest to secure.
- Start spaced repetition in week one. It is the difference between passing and topping, so build the habit early and browse the study-material guides for the method.
Frequently asked questions
How many subjects are there in first year MBBS?
Three core subjects — anatomy, physiology and biochemistry — plus the longitudinal AETCOM and Early Clinical Exposure threads and the introductory Foundation Course.
Which first-year MBBS subject is the hardest?
Most students find anatomy the heaviest because of its volume and the dissection component. Biochemistry feels hardest to those who dislike pathways. Difficulty is usually about volume and consistency, not conceptual difficulty.
Is attendance really compulsory in first year?
NMC norms require a minimum attendance (commonly 75%) to be eligible for exams, and many colleges enforce it strictly. Treat the requirement as a floor, not a target.
Does first year matter for NEET PG?
Yes. Anatomy, physiology and biochemistry together form a meaningful slice of NEET PG, and the habits you build in first year (spaced repetition, PYQs) decide how well you can revise later.
Get your books sorted next with the first year MBBS book list, and browse more study-material guides.
Written by Shrikant Bhosale
Final Year MBBS Student at Government Medical College, Chhatrapati Sambhajinagar (Aurangabad), Maharashtra. I write the study, ward and career guides I wish existed when I started MBBS — grounded in the real NMC curriculum, real university exams and real ward experience. More about me →
Educational use only. This guide is written for medical students and is not medical advice. Clinical protocols, drug doses and guidelines change — always verify against the latest standard textbooks and official NMC / institutional guidance before applying anything in practice. Read the full disclaimer.
📌 Executive Summary & High-Yield Takeaways
- The 3 pillars of 1st year: Human Anatomy (Gross, Histology, Embryology, Neuro), Human Physiology, and Medical Biochemistry.
- Early Clinical Exposure (ECE): Integrated clinical case correlations right from the first semester under the NMC CBME curriculum.
- Anatomy is the highest volume subject: Regular dissection and bone viva practice are essential from Week 1.
- Physiology is the highest conceptual subject: Master cardiac, respiratory, and neuro physiology mechanisms early.
Frequently Asked Questions (FAQ)
Common questions asked by medical students regarding this topic:
Q: What are the total subjects in 1st year MBBS in India?
There are three primary subjects: Anatomy, Physiology, and Biochemistry, along with integrated Early Clinical Exposure (ECE) and Foundation Course modules mandated by NMC CBME guidelines.
Q: Which 1st year subject is the hardest to pass?
Anatomy is considered the most difficult due to the vast volume of anatomical relations, nerve supplies, osteology viva, and dissection terminology. Physiology requires strong conceptual understanding, while Biochemistry requires memory of metabolic pathways.
Q: What is the minimum passing marks in 1st year MBBS university exams?
Under NMC guidelines, students must secure a minimum of 50% in aggregate (theory + practical) and 40% individually in theory and practical components to pass each subject.
Written by Shrikant Bhosale
Final-Year MBBS Student at Government Medical College, Chhatrapati Sambhajinagar (Aurangabad), Maharashtra. Affiliated with Maharashtra University of Health Sciences (MUHS). Written to provide unbloated, peer-tested medical education resources grounded in real hospital ward practice and NMC CBME university examinations.
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