HUMAN ANATOMY, PHYSIOLOGY AND PATHOPHYSIOLOGY 1 – BP104T UNIT-WISE Important Questions, B.Pharma 1st Semester.
Unit – 1
Introduction to human body
1. Very Short Answers Questions
★ 1. Define Human Anatomy and Histology.
2. Define Human Physiology and Pathophysiology.
3. What is Homeostasis and who coined the term?
★ 4. Name the three indispensable components of a Homeostatic Feedback Loop.
5. Define the standard Anatomical Position.
6. Differentiate between Superior (Cranial) and Inferior (Caudal) directional terms.
★ 7. State Fick’s First Law of Diffusion across biological membranes.
8. What is the exact stoichiometry of the Na⁺/K⁺-ATPase pump per molecule of ATP hydrolyzed?
9. List the four sequential stages of Mitosis during somatic cell division.
★ 10.What are Connexons and in which type of cell junction are they found?
11. Define Paracrine Signalling and provide one physiological example.
12. State the structural composition and function of the Basement Membrane.
13. Distinguish between skeletal muscle and cardiac muscle based on nuclear number and position.
14. Which neuroglial cells are responsible for myelinating axons in the Central Nervous System (CNS)?
★ 15.Define Cellular Atrophy and give one physiological example.
16. What is the primary biochemical cause of Hydropic Swelling during acute cell injury?
17. Define Metaplasia and mention the classic epithelial transformation occurring in chronic smokers.
18. Differentiate between Etiology and Pathogenesis.
2. Short Answer Questions
★ 1. Explain the operation of a Negative Feedback System using arterial blood pressure regulation.
2. Compare and contrast Negative Feedback and Positive Feedback systems with suitable examples.
3. Enumerate the 11 organ systems of the human body and outline the functions of any three systems.
★ 4. Describe the molecular architecture of the Fluid Mosaic Model of the cell membrane.
5. Differentiate between Simple Diffusion and Facilitated Diffusion across plasma membranes.
6. Describe the morphological structure and physiological functions of Mitochondria.
★ 7. Explain the transport mechanism, physiological role, and pharmacological inhibition of the Na⁺/K⁺-ATPase pump.
8. Classify the types of Cell Junctions and state the molecular linkers and functions of Tight Junctions and Desmosomes.
9. Explain the four major forms of Intercellular Signalling with appropriate examples.
★ 10.Classify epithelial tissues and describe the structure, locations, and functions of Simple Squamous Epithelium.
11. Tabulate key histological differences between Skeletal, Cardiac, and Smooth Muscle tissues.
12. Describe the structural components of a Multipolar Neuron and state their primary functions.
★ 13.Define and illustrate the five major Cellular Adaptations (Atrophy, Hypertrophy, Hyperplasia, Metaplasia, Dysplasia).
14. Explain the role of Intracellular Calcium Influx and Reactive Oxygen Species (ROS) in cell injury pathogenesis.
15. Differentiate between Coagulative Necrosis and Liquefactive Necrosis with organ examples.
★ 16.Compare and contrast Necrosis and Apoptosis across key morphological and biochemical features.
3. Long Answer Questions
★ 1. Describe the Levels of Structural Organization in the human body. Explain the concept of Homeostasis and describe the components and mechanisms of homeostatic feedback control systems with physiological examples.
★ 2. Describe the ultra-structure and functions of the Plasma Membrane according to the Fluid Mosaic Model. Explain in detail the various Passive and Active Transport Mechanisms across cell membranes.
3. Describe the eukaryotic Cell Cycle and explain the sequential stages of Mitosis. Provide a detailed comparison between Mitosis and Meiosis.
★ 4. Classify Connective Tissues. Describe in detail the histological characteristics, cellular components, extracellular matrix, anatomical locations, and physiological functions of various connective tissues.
5. Classify Epithelial Tissues with structural characteristics. Discuss the specialized features, locations, and functions of simple, pseudostratified, and stratified epithelia.
★ 6. Discuss the etiology and biochemical pathogenesis of Cellular Injury. Explain the sequential molecular cascade of Ischemic / Hypoxic Cell Injury from reversible swelling to irreversible cell death.
7. Write a comprehensive account of Cell Death. Compare Necrosis and Apoptosis, describe the six morphological types of necrosis, and delineate the intrinsic and extrinsic pathways of apoptosis.
Unit – 2
Integumentary system and wound healing
1. Very Short Answers Questions
★ 1. Name the five epidermal strata of thick skin in order from superficial to deep.
2. Enumerate the four specialized cell types present in the human epidermis and state their relative percentages.
3. Differentiate between the papillary layer and reticular layer of the dermis based on connective tissue type.
★ 4. What is Auspitz’s sign and in which dermatological disease is it pathognomonic?
5. Define the Koebner phenomenon observed in plaque psoriasis.
6. State the etiological pathogen of Leprosy and name the specific neural cells it invades.
7. Distinguish between wound healing by primary intention and secondary intention in terms of tissue loss.
★ 8. What is the specialized function of Myofibroblasts during the proliferative phase of wound healing?
9. Name the two major divisions of the human skeleton and specify the total bone count of each.
10. Define a Sesamoid bone and name the largest sesamoid bone in the human body.
★ 11.Define a Sarcomere and state its structural boundary lines.
12. Which neurotransmitter mediates synaptic transmission at the Neuromuscular Junction (NMJ) and which enzyme degrades it?
13. Classify joints functionally based on degree of movement (Synarthrosis, Amphiarthrosis, Diarthrosis).
★ 14.State the diagnostic DXA T-score threshold established by the WHO for defining Osteoporosis.
2. Short Answer Questions
★ 1. Explain the physiological synthesis and activation pathway of Vitamin D₃ (Cholecalciferol) to Calcitriol.
2. Describe the histological structure and immune functions of Langerhans cells in the epidermis.
3. Compare Allergic Contact Dermatitis (ACD) and Irritant Contact Dermatitis (ICD).
4. Outline the immunological differences and clinical features between Tuberculoid Leprosy (TT) and Lepromatous Leprosy (LL).
★ 5. Enumerate the four sequential phases of cutaneous Wound Healing and state their primary cellular events.
6. Discuss the local and systemic factors that delay or impair physiological wound healing.
★ 7. Describe the microscopic organization of an Osteon (Haversian System) in compact bone.
8. Classify bones morphologically into five categories with one anatomical example of each.
★ 9. Explain the connective tissue investments of skeletal muscle: Epimysium, Perimysium, and Endomysium.
10. Explain the biochemical events of the Cross-Bridge Cycle during muscle contraction (Sliding Filament Theory).
11. Classify joints structurally into Fibrous, Cartilaginous, and Synovial joints with representative examples.
12. Describe the diagnostic autoantibodies (RF and Anti-CCP / ACPA) and their pathological significance in Rheumatoid Arthritis.
★ 13.Explain the molecular RANKL / OPG pathway in the pathogenesis of postmenopausal osteoporosis.
14. Outline the purine degradation pathway to uric acid and describe the pharmacological mechanism of Allopurinol in Gout.
3. Long Answer Questions
★ 1. Describe the microscopic structure of the Epidermis, its histological strata, specialized cell types, and physiological functions of the skin.
2. Discuss the etiology, Ridley-Jopling classification, cellular pathogenesis of peripheral nerve injury, and standard WHO Multi-Drug Therapy (MDT) for Leprosy.
★ 3. Classify the human skeletal system into Axial (80 bones) and Appendicular (126 bones) divisions. Detail the bone counts, anatomical regions, and salient functional features.
4. Explain the structural organization of skeletal muscle and describe in detail the electrophysiological transmission at the Neuromuscular Junction (NMJ) and Excitation-Contraction (E-C) Coupling.
★ 5. Discuss the pathophysiology of Rheumatoid Arthritis (RA). Explain the cytokine cascade, Pannus formation, cartilage erosion, and classic clinical hand deformities.
6. Write a comprehensive account of Gout (Gouty Arthritis). Explain the etiology of hyperuricemia, the stepwise NLRP3 inflammasome-mediated acute attack cascade, clinical phases (Podagra, Tophi), and pharmacotherapeutic management.
Unit – 3
Body fluids, blood and lymphatic system
1. Very Short Answers Questions
★1. What is the normal physiological Albumin-to-Globulin (A:G) ratio in human blood, and in which clinical conditions is it reversed?
★2. State Landsteiner’s First Law of ABO blood grouping.
3. Which organ and cell type secrete erythropoietin (EPO), and what physiological stimulus triggers its release?
4. What is the specific molecular amino acid substitution that distinguishes Hemoglobin S (HbS) from normal adult Hemoglobin A?
★5. Name the five cardinal signs of inflammation in Latin with their exact English meanings.
6. What is the primary physiological function of Serum Albumin in capillary fluid dynamics?
7. Enumerate the four Vitamin K-dependent plasma coagulation factors.
8. Name the anatomical origin and the venous termination junction of the Thoracic Duct.
9. What is the fundamental difference in protein content and specific gravity between an inflammatory exudate and a noninflammatory transudate?
★10. Define Erythroblastosis Fetalis (Hemolytic Disease of the Newborn) in terms of maternal-fetal Rh incompatibility.
11. What is the key diagnostic neurological distinction between Vitamin B12 deficiency and Folic Acid deficiency?
12. Why is the bleeding time (BT) normal while the activated partial thromboplastin time (aPTT) is markedly prolonged in Hemophilia A?
2. Short Answer Questions
★1. Differentiate between Intracellular Fluid (ICF) and Extracellular Fluid (ECF) with respect to total volume, dominant cations, and dominant anions.
2. Outline the Differential Leukocyte Count (DLC) in order of abundance along with normal reference percentages and basic functions.
★3. Describe the three sequential phases of hemostasis with key events occurring in each phase.
4. Explain the morphological classification of anemias based on RBC indices (MCV, MCH, and MCHC).
5. Describe the molecular structure of adult Hemoglobin A (HbA1) and calculate its oxygen-carrying capacity.
★6. Explain the 5 sequential steps of leukocyte recruitment during acute inflammation.
7. Outline the physiological catabolic pathway of hemoglobin degradation to stercobilin and urobilin.
8. Compare and contrast Acute Inflammation and Chronic Inflammation regarding onset, cellular infiltrate, and tissue outcome.
9. Describe the anatomical classification and immune functions of Primary versus Secondary Lymphoid Organs.
★10. Explain the etiology, stages of iron depletion, and characteristic clinical features (Koilonychia, Plummer-Vinson syndrome) of Iron Deficiency Anemia.
11. Discuss the mechanism of “The Folate Trap” in Megaloblastic Anemia and explain why nuclear-cytoplasmic asynchrony develops.
12. Describe the pathogenesis, vaso-occlusive crises (dactylitis, acute chest syndrome), and diagnostic findings of Sickle Cell Anemia.
13. Distinguish between Alpha-Thalassemia and Beta-Thalassemia with regard to genetic mechanism, globin chain imbalance, and clinical forms.
14. Explain the etiology, hallmark blood smear findings (Heinz bodies, bite cells), and diagnostic features of G6PD Deficiency.
★15. Describe the clinical severity grading, characteristic manifestations (hemarthrosis), and laboratory coagulation profile of Hemophilia A.
16. Compare the process and outcomes of cutaneous wound healing by Primary Intention versus Secondary Intention.
3. Long Answer Questions
★1. Describe the process of Hemopoiesis with specific emphasis on the stages of Erythropoiesis (Pronormoblast to Mature Erythrocyte), citing changes in cell size, nucleus, and cytoplasm, and discuss the essential hormonal and nutritional factors required.
★2. Explain the complete Blood Coagulation Cascade, detailing the Intrinsic, Extrinsic, and Common pathways leading to stable fibrin clot formation, and outline the physiological mechanisms of clot dissolution (fibrinolysis) and natural anticoagulants.
★3. Discuss the basic mechanism and pathophysiology of Acute Inflammation, detailing the hemodynamic vascular alterations, changes in vascular permeability, cellular extravasation mechanisms (respiratory burst), and list the major chemical mediators involved.
4. Describe the molecular genetics, pathophysiology, clinical crises, complications, and modern therapeutic management of Sickle Cell Anemia and Beta-Thalassemia Major (Cooley’s Anemia).
5. Provide a comprehensive pathophysiological comparative account of Nutritional Anemias: Iron Deficiency Anemia versus Megaloblastic Anemia (Vitamin B12 and Folate deficiency), highlighting biochemical pathways, peripheral smear differences, and clinical hallmarks.
6. Explain the inheritance pattern, molecular defect in the tenase complex, clinical features, diagnostic evaluation, and comprehensive pharmacological management of Hemophilia A and Hemophilia B.
Unit – 4
Peripheral nervous system
1. Very Short Answers Questions
★1. State the anatomical outflow origin and primary neurotransmitters utilized by preganglionic and postganglionic sympathetic neurons.
★2. How many pairs of cranial nerves and spinal nerves constitute the human Peripheral Nervous System?
3. Which cranial nerve conveys approximately 75% of total parasympathetic outflow to the thoracic and abdominal viscera?
4. What is the anatomical location and specific physiological role of the Dorsal Root Ganglion (DRG)?
★5. Enumerate the three auditory ossicles of the middle ear and state their overall impedance matching pressure amplification ratio.
6. Which photoreceptor cells mediate scotopic (night) vision, and what photosensitive chromoprotein pigment do they contain?
7. Why is the optic disc anatomically designated as the “blind spot” of the human retina?
8. What unique anatomical projection feature distinguishes the olfactory sensory pathway from all other special sensory modalities?
★9. Differentiate between the sensory structures responsible for detecting dynamic equilibrium versus static equilibrium in the internal ear.
10. Which lingual papillae on the human tongue completely lack taste buds, and what is their functional purpose?
11. Define Myopia in terms of optical focal plane and state the specific optical lens geometry required for its correction.
12. What is the primary pathophysiological distinction between Primary Open-Angle Glaucoma and Angle-Closure Glaucoma regarding the iridocorneal filtration angle?
2. Short Answer Questions
★1. Differentiate between the Somatic Nervous System (SNS) and Autonomic Nervous System (ANS) with respect to control, effector targets, and motor pathway architecture.
2. Outline the spinal root origins, terminal branches, and clinical importance of the Cervical and Brachial plexuses.
★3. Describe the five essential structural components of a standard Somatosensory Reflex Arc.
4. Explain the anatomical organization of the three tunics of the human eyeball and their respective physiological functions.
★5. Describe the biochemical phototransduction cascade and rhodopsin bleaching cycle initiated by photon absorption in retinal rods.
6. Outline the microscopic organization and sound transduction mechanism of the Organ of Corti within the cochlea.
7. Describe the cellular architecture of the olfactory epithelium and the G-protein (Golf) coupled odorant transduction cascade.
8. Enumerate the five primary taste modalities, their triggering chemical tastants, and their corresponding receptor mechanisms.
★9. Discuss the etiopathogenesis, optic disc changes, and pharmacological drug classes utilized in the management of Glaucoma.
10. Explain the molecular pathophysiological mechanisms responsible for Cataract formation and its definitive management.
11. Compare Otitis Externa and Otitis Media regarding anatomical site, common microbial etiology, and hallmark clinical features.
12. Distinguish between Benign Paroxysmal Positional Vertigo (BPPV) and Ménière’s Disease with regard to underlying mechanism and clinical triad.
3. Long Answer Questions
★1. Provide a comprehensive comparative evaluation of the Sympathetic and Parasympathetic nervous systems, detailing outflow origins, ganglion locations, fiber lengths, neurotransmitters, receptor distributions, and opposing physiological actions across major body organ systems.
★2. Classify all 12 pairs of Cranial Nerves (CN I through CN XII) in sequential Roman numerical order, indicating their specific functional modality (sensory, motor, or mixed), cranial exit foramina, detailed physiological functions, and consequences of clinical lesions.
★3. Describe the complete anatomy and physiology of the human ear, explaining middle ear impedance matching, cochlear auditory transduction in the Organ of Corti, basilar membrane frequency tonotopy, and the vestibular maintenance of dynamic and static equilibrium.
4. Detail the structural anatomy of the human eye, explaining the physiology of vision, accommodation for near vision, the rhodopsin visual cycle, aqueous humor dynamics, and the pathophysiology of Glaucoma and Myopia.
5. Describe the chemical senses (Olfaction and Gustation), detailing the histological organization of olfactory epithelium and taste buds, signal transduction mechanisms, neural pathways to the cerebral cortex, and the etiology of Anosmia.
Unit – 5
Cardiovascular system
1. Very Short Answers Questions
★1. What are the three concentric histological tunics of blood vessel walls, and which tunic is thickest in muscular arteries?
★2. State the anatomical location and intrinsic firing frequency of the Sinoatrial (SA) node in the human heart.
3. Name the four valves of the heart in order of forward blood flow through the cardiac chambers.
4. What is the physiological function of intercalated discs in cardiac muscle tissue?
★5. Define Cardiac Output (CO) and write its fundamental mathematical equation with standard resting values.
6. Which coronary artery branch is clinically referred to as the “Widow Maker,” and which areas of the myocardium does it supply?
7. What produces the First Heart Sound (S1, “LUB”) and the Second Heart Sound (S2, “DUB”)?
★8. Define Mean Arterial Pressure (MAP) and calculate its value for an individual with a resting blood pressure of 120/80 mmHg.
9. What are the three structural requirements necessary for the initiation and maintenance of a cardiac re-entry circuit?
10. What diagnostic ECG change characterizes an ST-Elevation Myocardial Infarction (STEMI)?
11. Enumerate the four clinical characteristics evaluated during routine arterial pulse examination.
12. Differentiate between Systolic Heart Failure (HFrEF) and Diastolic Heart Failure (HFpEF) based on Ejection Fraction (EF).
2. Short Answer Questions
★1. Differentiate between Arteries, Veins, and Capillaries with respect to lumen diameter, wall thickness, internal valves, blood pressure, and primary function.
2. Describe the three histological types of capillaries (Continuous, Fenestrated, and Sinusoids) with their specific anatomical locations.
★3. Trace the complete pathway of electrical impulse conduction through the specialized conduction system of the heart from the SA node to Purkinje fibers.
4. Compare the phases of the electrical action potential between a Ventricular Contractile Myocyte and an SA Nodal Pacemaker cell.
5. Explain the autonomic regulation of heart rate and cardiac contractility by the Sympathetic and Parasympathetic nervous systems.
6. Describe the mechanical phases and pressure-volume events occurring during Ventricular Systole (Isovolumetric Contraction and Ventricular Ejection).
★7. Explain the Frank-Starling Law of the Heart and define Preload, Contractility, and Afterload as determinants of stroke volume.
8. Describe the short-term neural regulation of arterial blood pressure mediated by the arterial Baroreceptor Reflex.
9. Outline the anatomical landmarks and clinical indications for palpating the Radial, Carotid, Brachial, and Femoral pulses.
★10. Describe the diagnostic significance of the P wave, PR interval, QRS complex, ST segment, and T wave on a standard Electrocardiogram (ECG).
11. Classify the clinical stages of Hypertension according to the AHA/ACC guidelines and list the major target organ complications.
12. Differentiate between Left-Sided Heart Failure (LHF) and Right-Sided Heart Failure (RHF) regarding etiology, hemodynamics, and hallmark clinical manifestations.
13. Classify Angina Pectoris into Stable, Unstable, and Variant (Prinzmetal) angina based on pathophysiology, triggers, and ECG patterns.
3. Long Answer Questions
★1. Describe the anatomical organization of the heart, detailing its location, pericardial coverings, heart wall layers, internal chambers, valves, fibrous skeleton, and coronary blood supply.
★2. Explain the complete Conduction System of the heart, detailing the generation of pacemaker potentials, impulse propagation sequence, and the biophysical phases of cardiac action potentials with ionic currents.
★3. Describe the complete Cardiac Cycle (0.8 seconds duration), explaining the sequential mechanical and electrical events during Atrial Systole, Ventricular Systole, and Ventricular Diastole, and correlate them with heart sounds (S1 to S4) and ECG waveforms.
4. Explain the physiological regulation of Arterial Blood Pressure, detailing short-term neural baroreceptor reflexes, intermediate hormonal mechanisms (RAAS cascade, ADH, ANP), and long-term renal fluid-volume mechanisms.
5. Discuss the pathophysiology of Ischemic Heart Disease (IHD), explaining the step-by-step 5-stage pathogenesis of Atherosclerosis, coronary plaque rupture, and the clinical profile, ECG differences, and cardiac biomarker kinetics (cTnI, cTnT, CK-MB) in Myocardial Infarction.
6. Describe the electrophysiological mechanisms of Cardiac Arrhythmias (altered automaticity, triggered activity, and re-entry circuits), classify Atrioventricular (AV) conduction blocks (1st, 2nd, and 3rd degree), and outline the clinical risks of Atrial Fibrillation and Ventricular Fibrillation.
📌 Questions marked with (★) represent high-frequency university exam as well as internal exam questions derived from PCI semester evaluation trends. Students must prioritize these questions for core concept clarity and good scoring in exam.