In your B Pharma 1st semester, HAP-I taught you the structural foundations — cells, tissues, musculoskeletal system, and basic cardiovascular physiology. Human Anatomy and Physiology 2 (HAP-II) in 2nd semester goes deeper into the systems that keep you alive — the nervous system that controls everything, the digestive system that fuels you, the respiratory and urinary systems that maintain homeostasis, the endocrine system that regulates hormones, and the reproductive system right through to the genetics that determines inheritance. HAP-II is where anatomy and physiology become genuinely complex and genuinely fascinating.
These HAP-II notes are prepared as per the PCI-approved B Pharma 2nd semester syllabus 2025–26, structured unit-wise from the nervous system through digestive, respiratory, urinary, endocrine, and reproductive physiology ending with genetics fundamentals. Each unit download has a detailed topic summary. HAP-II topics carry consistent GPAT weightage — action potential, neurotransmitters, renin-angiotensin system, hormone mechanisms, and gametogenesis are regularly tested. These notes serve both university exam and GPAT preparation.
Download Human Anatomy and Physiology 2 Notes PDF – Unit Wise
Click on the download buttons below to get the PDF notes for each unit. All files are safe and free to download.
Course Units
Unit 1: Nervous System
Topics Covered: the organization of the nervous system, structure and functions of neurons and neuroglia, classification and properties of nerve fibers, electrophysiology, action potential, nerve impulse transmission, receptors, synapses, and neurotransmitters, along with the anatomy and functions of the central nervous system including meninges, ventricles, cerebrospinal fluid, brain regions (cerebrum, brain stem, cerebellum), and spinal cord with afferent and efferent tracts and reflex activities.
Unit 2: Digestive System and Energetics
Topics Covered: Explores the anatomy and physiology of the gastrointestinal tract, focusing on the stomach, small and large intestines, salivary glands, pancreas, and liver; details acid secretion, parasympathetic regulation, pepsin function, digestive movements, nutrient absorption, and gastrointestinal disorders; also includes the study of bioenergetics with formation and role of ATP, creatine phosphate, and basal metabolic rate (BMR).
Unit 3: Respiratory and Urinary Systems
Topics Covered: Explains the structure and function of the respiratory system, lungs, mechanism and regulation of respiration, lung volumes, gas transport, artificial respiration, and resuscitation methods; also discusses the urinary system including the kidneys, nephrons, urinary tract, urine formation, micturition reflex, acid-base balance, renin-angiotensin system, and kidney disorders.
Unit 4: Endocrine System
Topics Covered: the classification and mechanism of hormone action, structure and functions of major endocrine glands such as the pituitary, thyroid, parathyroid, adrenal, pancreas, pineal, and thymus glands, along with their hormonal secretions and related disorders.
Unit 5: Reproductive System and Genetics
Topics Covered: Describes the anatomy and physiology of the male and female reproductive systems, functions of sex hormones, menstrual cycle, fertilization, gametogenesis (spermatogenesis and oogenesis), pregnancy, and parturition; also introduces the fundamentals of genetics including chromosomes, genes, DNA structure, protein synthesis, and basic patterns of inheritance.
What is Human Anatomy and Physiology 2?
Human Anatomy and Physiology 2 focuses on understanding the structure and functions of various organ systems in the human body that play vital roles in maintaining homeostasis and supporting life. It builds upon the foundational knowledge from HAP-I and emphasizes systems such as cardiovascular, respiratory, digestive, endocrine, and reproductive systems.
These notes will help you understand topics like:
Cardiovascular System: Structure and function of heart, blood vessels, circulation, ECG
Lymphatic System: Lymph, lymph nodes, and immune responses
Respiratory System: Anatomy and physiology of the respiratory tract, mechanism of breathing, gas exchange
Digestive System: Structure and function of digestive organs, digestion and absorption of nutrients
Urinary System: Structure and function of kidneys, urine formation, acid-base balance
Endocrine System: Hormones, endocrine glands, mechanism of hormone action
Reproductive System: Male and female reproductive organs, menstrual cycle, fertilization, pregnancy, and parturition.
Frequently Asked Questions (FAQ)
Q1. How does HAP-II differ from HAP-I?
While HAP-I focuses on the structural foundations (cells, tissues, and the skeletal system), HAP-II dives into the complex organ systems responsible for homeostasis, such as the nervous, endocrine, digestive, and reproductive systems.
Q2. Does the syllabus include information on energy production?
Yes. Under Unit 2 (Digestive System and Energetics), the notes cover Bioenergetics, specifically the formation and role of ATP, creatine phosphate, and the calculation of the Basal Metabolic Rate (BMR).
Q3. Are Genetics and Heredity part of this course?
Yes, Unit 5 introduces the fundamentals of genetics. It covers DNA structure, protein synthesis, chromosomes, genes, and basic patterns of inheritance, alongside the physiology of the reproductive system.
Q4. What details are provided regarding the Respiratory System?
The Unit 3 notes explain the mechanism and regulation of respiration, including:
Lung volumes and capacities.
Gas transport (Oxygen and Carbon Dioxide).
Artificial respiration and resuscitation methods.