Physiology MCQs

Option A: Plasma K+

Option B: Plasma Na+

Option C: pH of the plasma

Option D: Angiotensin II level

Correct Answer: Plasma Na+ ✔

Option A: Oxytocin

Option B: Estrogen

Option C: Progesterone

Option D: Prolactin

Correct Answer: Oxytocin ✔

Option A: Weakened heart action

Option B: Decalcification of bones

Option C: Decalcification of teeth

Option D: Hyperirritability of nerves and muscles

Correct Answer: Decalcification of bones ✔

Option A: Hypotonicity of muscles

Option B: Hypertonicity of muscles

Option C: Increased serum calcium concentration

Option D: None of the above

Correct Answer: Hypertonicity of muscles ✔

Option A: Relaxation of muscle

Option B: Excitability of the muscle

Option C: Increase the renal absorption

Option D: Depression of Nervous system

Correct Answer: Excitability of the muscle ✔

Option A: Antibacterial substance

Option B: Lipase

Option C: Maltase

Option D: Secretin

Correct Answer: Antibacterial substance ✔

Option A: Pot- belly

Option B: Idiotic look

Option C: Normal intelligence

Option D: Stunted growth

Correct Answer: Normal intelligence ✔

Option A: Adrenalin

Option B: Growth Hormone

Option C: Insulin

Option D: Thyroxine

Correct Answer: Thyroxine ✔

Option A: Parathyroid hormone

Option B: Calcitonin

Option C: 1,25 dihydroxycholecalciferols

Option D: Tumor necrosis factor

Correct Answer: Calcitonin ✔

Option A: Tetany

Option B: Hyperparathyrodism

Option C: Rickets

Option D: None

Correct Answer: Tetany ✔

Option A: Constitutional delay in growth

Option B: Genetic short stature

Option C: Primordial dwarfism

Option D: Hypopituitarism

Correct Answer: Constitutional delay in growth ✔

Option A: Heart rate

Option B: Cardiac output

Option C: Peripheral resistance

Option D: All of the above

Correct Answer: Peripheral resistance ✔

Option A: Insulin

Option B: Heparin

Option C: Bradykinin

Option D: Acetylcholine

Correct Answer: Insulin ✔

Option A: Lactogenesis

Option B: Milk ejection

Option C: Contraction of uterine muscle

Option D: Myoepithelial cell contraction

Correct Answer: Lactogenesis ✔

Option A: Sleep

Option B: Early morning

Option C: Evening

Option D: Have no change

Correct Answer: Early morning ✔

Option A: Zona glomerulosa

Option B: Zona reticularis

Option C: Zona fasciculata

Option D: Medulla

Correct Answer: Zona reticularis ✔

Option A: Chromophobes

Option B: Basophils

Option C: Acidophiles

Option D: Theca intern cells

Correct Answer: Basophils ✔

Option A: Synthetic derivative

Option B: Isomerisation product of T3 and active

Option C: Isomerisation product of T3 and inactive

Option D: Reverse of T3

Correct Answer: Isomerisation product of T3 and inactive ✔

Option A: Lh/FSH increase

Option B: Gonadotropins increase , estrogens decrease

Option C: Estrogens and gonadotropins decrease

Option D: Both increase

Correct Answer: Gonadotropins increase , estrogens decrease ✔

Option A: T3 more potent than T4

Option B: T4 binds to prealbumin

Option C: Absorption of T4 is more than T3

Option D: Concentration of T4 is more than T3

Correct Answer: T4 binds to prealbumin ✔

Option A: Prolactin

Option B: Testosterone

Option C: L.H

Option D: Oxytocin

Correct Answer: L.H ✔

Option A: Adrenaline

Option B: Aldosterone

Option C: A.D.H. and vasopressin

Option D: All of the above

Correct Answer: Aldosterone ✔

Option A: Thyroxine

Option B: Parathormone

Option C: Growth Hormone

Option D: Epinephrine

Correct Answer: Parathormone ✔

Option A: Activity of histamine

Option B: Release of histamine

Option C: Fibroblastic activity

Option D: Neutrophils

Correct Answer: Release of histamine ✔

Option A: Antidiuretic hormone

Option B: Oxytocin

Option C: Growth hormone

Option D: Adreno corticotrophic hormone

Correct Answer: Antidiuretic hormone ✔

Option A: Excess growth hormone secreting

Option B: Excess thyroxine secretion

Option C: Excess ACTH secretion

Option D: Excess FSH secretion

Correct Answer: Excess growth hormone secreting ✔

Option A: Thyroid stimulating hormone

Option B: Glucagon

Option C: Estrogen

Option D: Epinephrine

Correct Answer: Estrogen ✔

Option A: Decreased gluconeogenesis

Option B: Increased glycogenolysis

Option C: Increased transport of glucose into cells

Option D: Induction of lipoprotein lipase

Correct Answer: Increased glycogenolysis ✔

Option A: Thyroxine

Option B: Cortisone

Option C: Parathormone

Option D: Epinephrine

Correct Answer: Cortisone ✔

Option A: Thyroid gland, testes , and adrenal medulla

Option B: Adrenal medulla, parathyroids, and the islets of langerhans

Option C: Adrenal cortex, parathyroids and ovaries

Option D: Pancreas, adrenal medulla and thyroid gland

Correct Answer: Adrenal medulla, parathyroids, and the islets of langerhans ✔

Option A: Alpha cells of pancreas

Option B: Beta cells of pancreas

Option C: Gamma cells of pancreas

Option D: None of the above

Correct Answer: Alpha cells of pancreas ✔

Option A: Osteoblasts

Option B: Osteoclasts

Option C: Periosteum

Option D: Cartilage

Correct Answer: Osteoclasts ✔

Option A: Pituitary disturbance

Option B: Thyroid disturbance

Option C: Parathyroid

Option D: All of the above

Correct Answer: Thyroid disturbance ✔

Option A: Increase in blood glucose level

Option B: Increase in protein catabolism

Option C: Anti – insulin action in peripheral tissues

Option D: Decrease in glucose uptake by the heart

Correct Answer: Decrease in glucose uptake by the heart ✔

Option A: Conn’s syndrome

Option B: Cushing ‘s syndrome

Option C: Acromegaly

Option D: Diabetes insipidus

Correct Answer: B. Cushing ‘s syndrome ✔

Option A: Stimulation of the thyroid gland

Option B: Increased ability to cross – link fibrin

Option C: Production of Calcitonin and a low blood calcium level

Option D: Production of parathyroid hormone and bone resorption

Correct Answer: Production of parathyroid hormone and bone resorption ✔

Option A: Cortex is under the control of ACTH

Option B: Both cortex and medulla are under the control of autonomic nervous system

Option C: Cortex is exocrine and medulla is endocrine

Option D: All of the above

Correct Answer: Cortex is under the control of ACTH ✔

Option A: Enolase and Calcitonin

Option B: Alkaline phosphatase and catalase

Option C: Alkaline phosphatase and pyrophophatase

Option D: Pyrophosphatase and carbonic anhydrase

Correct Answer: Alkaline phosphatase and pyrophophatase ✔

Option A: Acromegaly

Option B: Albright’s syndrome

Option C: Paget’s disease

Option D: Fibrous dysplasia

Correct Answer: Acromegaly ✔

Option A: Hyper excitability of wrist muscle

Option B: Weak heart action

Option C: Tetanus

Option D: All of the above

Correct Answer: All of the above ✔

Option A: TSH

Option B: GRH

Option C: Somatostatin

Option D: Prolactin

Correct Answer: Prolactin ✔

Option A: Anderogen

Option B: Estrogen

Option C: Nor epinephrine

Option D: Thyroid hormone

Correct Answer: Nor epinephrine ✔

Option A: Oxytocin

Option B: Somatotropins

Option C: Thyroid hormone

Option D: Estrogen

Correct Answer: Oxytocin ✔

Option A: Parafollicular cells of thyroid

Option B: Chief cells of thyroid

Option C: Granular cells of adrenal gland

Option D: Stratum fasciculata of adrenal gland

Correct Answer: Parafollicular cells of thyroid ✔

Option A: Water reabsorption

Option B: Water excretion

Option C: Na+ absorption

Option D: K+ secretion

Correct Answer: Water reabsorption ✔

Option A: Parathyroid hormone

Option B: Glucagon

Option C: Thyroxine

Option D: Cortisol

Correct Answer: Cortisol ✔

Option A: Thyroxine

Option B: Growth hormone

Option C: Rickets

Option D: Parathyroid

Correct Answer: Thyroxine ✔

Option A: Cushing syndrome

Option B: Graves’ disease

Option C: Addison disease

Option D: Acromegaly

Correct Answer: Addison disease ✔

Option A: Growth hormones

Option B: Epinephrine

Option C: Corticosteroid

Option D: Thyroid hormone

Correct Answer: Epinephrine ✔

Option A: Parathormone

Option B: Calcitonin

Option C: Thyroxine

Option D: Adrenaline

Correct Answer: Parathormone ✔

Option A: Acromegaly

Option B: Cretinism

Option C: Gigantism

Option D: Myxodedema

Correct Answer: Cretinism ✔

Option A: Adrenaline

Option B: Aldosterone

Option C: Cortisol

Option D: Noradrenaline

Correct Answer: Aldosterone ✔

Option A: 25 mm Hg

Option B: 40 mm Hg

Option C: 55 mm Hg

Option D: 70 mm Hg

Correct Answer: 40 mm Hg ✔

Option A: Left

Option B: Right

Option C: Does not shift

Option D: None of the above

Correct Answer: Right ✔

Option A: Hypoxic

Option B: Stagnant

Option C: Anemic

Option D: Histotoxic

Correct Answer: Hypoxic ✔

Option A: Hypoxia

Option B: Hypercapnia

Option C: Acidosis

Option D: Stretching of airways

Correct Answer: Stretching of airways ✔

Option A: Anemia

Option B: KCN poisoning

Option C: Pulmonary hypoventilation

Option D: CO poisoning

Correct Answer: Pulmonary hypoventilation ✔

Option A: Emphysema

Option B: Asthma

Option C: Pulmonary artery thrombosis

Option D: Skeletal abnormalities of the chest

Correct Answer: Emphysema ✔

Option A: Diaphragm

Option B: Internal intercostals

Option C: External intercostals

Option D: Rcti Abdominis

Correct Answer: Internal intercostals ✔

Option A: Fall in pH

Option B: Rise in temperature

Option C: Increase of 2, 3 3 DPG

Option D: HbF

Correct Answer: HbF ✔

Option A: 2.5 lit/Min

Option B: 4.0 lit /Min

Option C: 6.75 Lit/Min

Option D: 9 Lit/Min

Correct Answer: 6.75 Lit/Min ✔

Option A: -4 mm Hg

Option B: +4 mm Hg

Option C: -18 mm Hg

Option D: + mm Hg

Correct Answer: -4 mm Hg ✔

Option A: Low arterial PO2

Option B: Intense chemoreceptor response

Option C: Favorable response to 100% oxygen

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Increased by hyperventilation

Option B: Decreased by hyperventilation

Option C: Similar to venous O2 tension

Option D: Not affected by respiratory depression

Correct Answer: Increased by hyperventilation ✔

Option A: Pnemocyte I

Option B: Pnemocyte II

Option C: Goblet cells

Option D: Pulmonary vessels

Correct Answer: Pnemocyte I ✔

Option A: Bronchial asthma

Option B: Scoliosis

Option C: Chronic bronchitis

Option D: Acute bronchitis

Correct Answer: Scoliosis ✔

Option A: Anemic Hypoxia

Option B: Hypoxic Hypoxia

Option C: Stagnant Hypoxia

Option D: Histotoxic Hypoxia

Correct Answer: Hypoxic Hypoxia ✔

Option A: Expiratory reserve volume

Option B: Functional residual capacity

Option C: Residual volume

Option D: Inspiratory reserve volume

Correct Answer: Functional residual capacity ✔

Option A: 125 ml

Option B: 500 ml

Option C: 1500 ml

Option D: 2200 ml

Correct Answer: 500 ml ✔

Option A: Decrease in hemoglobin concentration of arterial blood

Option B: Paralysis of inspiratory muscles

Option C: Sluggish blood flow

Option D: High altitudes

Correct Answer: High altitudes ✔

Option A: Decrease in pH of blood

Option B: Increase in pH of blood

Option C: Obstructive pulmonary disease

Option D: Carbon monoxide poisoning

Correct Answer: Decrease in pH of blood ✔

Option A: 25% – 50% of total energy spent

Option B: 50% -75% of total energy spent

Option C: 15% – 20% of total energy spent

Option D: 2% – 3% of total energy spent

Correct Answer: D. 2% – 3% of total energy spent ✔

Option A: -2

Option B: -5

Option C: 0

Option D: -7

Correct Answer: -2 ✔

Option A: Increased pH of blood

Option B: Decreased pH of blood

Option C: Remains same

Option D: Increased oxygen concentration in blood

Correct Answer: Decreased pH of blood ✔

Option A: Hypoxic hypoxia

Option B: Oxygen dissociation curve shifts to left

Option C: Cyanosis

Option D: Diffusion capacity of lungs decreases

Correct Answer: Oxygen dissociation curve shifts to left ✔

Option A: Anion balance

Option B: Sodium balance

Option C: Potassium balance

Option D: Ca+2 balance

Correct Answer: Sodium balance ✔

Option A: Total chest wall diameter is increased

Option B: Interpleural pressure becomes more negative

Option C: The concentration of surfactant is reduced in alveoli

Option D: Increased lung compliance

Correct Answer: Total chest wall diameter is increased ✔

Option A: Anoxic anoxia

Option B: Anoxia

Option C: Histotoxic hypoxia

Option D: Ischemic hypoxia

Correct Answer: Histotoxic hypoxia ✔

Option A: 0.5 L

Option B: 2.0 L

Option C: 1.1 L

Option D: 1.8 L

Correct Answer: 1.1 L ✔

Option A: Differential pressure of oxygen in arterial blood

Option B: Differential pressure of oxygen in venous blood

Option C: Differential pressure of oxygen in in tissue fluids

Option D: Differential pressure of oxygen in in hemoglobin synthesis

Correct Answer: Differential pressure of oxygen in arterial blood ✔

Option A: Bind avidly with Hb

Option B: Partial pressure of CO is less

Option C: CO is less absorbed in water

Option D: Alveolar membrane is less permeable

Correct Answer: Bind avidly with Hb ✔

Option A: Anaphylaxis

Option B: Asthma

Option C: Hyperventilation

Option D: COPD

Correct Answer: Hyperventilation ✔

Option A: 200 ML

Option B: 400 ML

Option C: 600 ML

Option D: 800 ML

Correct Answer: 400 ML ✔

Option A: Increased workload, decreasing duration of exercise

Option B: Increased workload, increasing duration of exercise

Option C: Decreasing workload, increasing duration of exercise

Option D: Decreasing workload, decreasing duration of exercise

Correct Answer: Decreasing workload, increasing duration of exercise ✔

Option A: Air conditioning

Option B: Drug absorption

Option C: Gaseous exchange

Option D: Reserve volume

Correct Answer: Gaseous exchange ✔

Option A: is inversely related to lung compliance

Option B: remains constant during exercise

Option C: is not affected by respiratory

Option D: decreased in lying posture

Correct Answer: is inversely related to lung compliance ✔

Option A: Increased 2,3 BPG

Option B: Increased temperature

Option C: Increased concentration of carbon – di – oxide

Option D: Increased concentration of oxygen

Correct Answer: Increased concentration of oxygen ✔

Option A: Increase in respiratory rate

Option B: Increases in depth of respiration

Option C: Increase in oxygen carrying capacity of blood

Option D: Increase in partial pressure of CO2

Correct Answer: Increase in partial pressure of CO2 ✔

Option A: It is secreted by Type II pneumocytes

Option B: It contains lecithin and sphingomyelin

Option C: It increases surface tension

Option D: It prevents collapse of smaller alveoli

Correct Answer: It increases surface tension ✔

Option A: Haldane effect

Option B: Bohr effect

Option C: Breur effect

Option D: Hamburger effect

Correct Answer: Bohr effect ✔

Option A: Base of lung

Option B: Apex of lung

Option C: Posterior lobe of lung

Option D: Middle lobe of lung

Correct Answer: Apex of lung ✔

Option A: Tidal volume

Option B: Inspiratory reserve volume plus expiratory volume

Option C: Tidal volume plus inspiratory reserve volume plus expiratory reserve volume

Option D: Expiratory reserve volume plus reserve volume

Correct Answer: Tidal volume ✔

Option A: Hypoxia

Option B: Hypothermia

Option C: HbF

Option D: Increased pH

Correct Answer: Hypoxia ✔

Option A: Stagnant hypoxia

Option B: Anemic hypoxia

Option C: Histotoxic hypoxia

Option D: Hypoxic or arterial hypoxia

Correct Answer: Anemic hypoxia ✔

Option A: Alkalosis

Option B: Hypoxia

Option C: Increased HbF

Option D: Hypothermia

Correct Answer: Hypoxia ✔

Option A: Dopamine metabolism

Option B: Adrenaline metabolism

Option C: Serotonin metabolism

Option D: PGE2 production

Correct Answer: Serotonin metabolism ✔

Option A: Ciliary motility

Option B: Cellular hyperplasia

Option C: Mucous secretion

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Autonomic reflex

Option B: Bainbridge reflex

Option C: Herring – Breur reflex

Option D: Dynamic stretch reflex

Correct Answer: C. Herring – Breur reflex ✔

Option A: The relative proportion of reduced and oxygenated hemoglobin

Option B: The absolute amount of reduced hemoglobin

Option C: Thickness of the skin

Option D: Fragility of capillaries

Correct Answer: The absolute amount of reduced hemoglobin ✔

Option A: Intrapulmonary pressure falls

Option B: Intra thoracic pressure rises

Option C: Intra-abdominal pressure rises

Option D: The partial pressure of O2 in dead space rises

Correct Answer: Intra thoracic pressure rises ✔