physiology MCQs – Page 12

Practise focused physiology questions with marked answers for exam preparation and subject revision.

physiology Mcqs

221. Maximum amount of glucose absorption occurs at_______________?
0

A. Loop of henle

B. None

C. PCT

D. DCT

222. In excitable cells, repolarization is closely associated with, one of the following events_______________?
0

A. K influx

B. K efflux

C. Na influx

D. Na effux

223. First change to occur after nerve cut is_______________?
0

A. Axonal sprouting

B. Schwan cell mitosis

C. Nuclear disintegration

D. Myelin sheath degeneration

224. Which of the following acts as a neurotransmitter inhibitor _______________?
0

A. GABA

B. Glutamate

C. Aspartic acid

D. Lysin

225. Breathing ceases upon destruction of the___________________________?
0

A. Medulla oblongata

B. Cerebellum

C. Cerebrum

D. Hypothalamus

226. Bleeding time is prolonged in a person who_______________?
0

A. Takes coumarin derivatives

B. Has liver disease

C. Takes large quantities of aspirin

D. Lacks factor VIII

227. Plasma cells are constituent of_____________________?
0

A. Epithelial tissue

B. Nervous tissue

C. Muscular tissue

D. Connective tissue

228. Gut associated lymphoid tissue ( GALT) is primarily located in______________?
0

A. Lamina propria

B. Muscularis

C. Submucosa

D. Serosa

229. Which one of the following is not responsible for concentration of urine in the kidneys______________?
0

A. Aldosterone

B. Angiotensin II

C. Epinephrine

D. Vasopressin

230. The absolute refractory period of an action potential is due to _______________?
0

A. Inactivation of Na+ k+ ATPase

B. Depletion of intracellular Na+

C. Insufficient neurotransmitter

D. Voltage inactivation of the Na+ channel

231. Mineral essential for Hb synthesis_______________?
0

A. Phosphorus

B. Copper

C. Sodium

D. Potassium

232. Which of the following is not a marker of bone formation_________________?
0

A. Alkaline phosphatase

B. Procollagen marker

C. Hydroxy proline

D. Osteocalcin

233. True statement regarding hematopoiesis includes______________?
0

A. None

B. Spleen plays a major role in adults (in lymphopoiesis )

C. Committed stem cells differentiates into only one cell type

D. RES plays a role

234. During exercise_____________?
0

A. Lymphatic flow from muscle decrease

B. Body temperature increases

C. Blood flow to muscle increases after 1 minute

D. Cerebral blood flow increases if there is increase in systolic blood pressure

235. The main types of muscle cells are______________?
0

A. All of the above

B. Skeletal and cardiac

C. Smooth and skeletal

D. Smooth and cardiac

236. The principal site for granulocytic hemopoiesis in the adult human is________________?
0

A. Red bone marrow

B. Yellow bone marrow

C. The liver

D. The spleen

237. Non true regarding Na/K pump is______________?
0

A. Increase in intracellular Na

B. 5 Na+ exchanged for 2K+

C. Hypocalcemia inhibits the pump

D. Pumps Na against a gradient

238. Intracellular and interstitial body fluids have similar______________?
0

A. Potassium ion concentrations

B. Total osmotic pressure

C. Chloride ion concentrations

D. Colloid osmotic pressure

239. Following are the changes during accommodation except_______________?
0

A. Increase in the anterior curvature of lens

B. Convergence of eye ball

C. Dilatation of pupil

D. Constriction of pupil

240. Survival time of platelet is approximately______________?
0

A. 100 days

B. 10 weeks

C. 10 hours

D. 10 days

Showing 221 to 240 of 522 mcqs