medical MCQs – Page 354

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

7061. 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

7062. Mineral essential for Hb synthesis_______________?
0

A. Phosphorus

B. Copper

C. Sodium

D. Potassium

7063. Which of the following is not a marker of bone formation_________________?
0

A. Alkaline phosphatase

B. Procollagen marker

C. Hydroxy proline

D. Osteocalcin

7064. 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

7065. 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

7066. 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

7067. 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

7068. 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

7069. Intracellular and interstitial body fluids have similar______________?
0

A. Potassium ion concentrations

B. Total osmotic pressure

C. Chloride ion concentrations

D. Colloid osmotic pressure

7070. 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

7071. Survival time of platelet is approximately______________?
0

A. 100 days

B. 10 weeks

C. 10 hours

D. 10 days

7072. Tendon (or) ligament is attached to a bone through ____________?
0

A. Haversian fibers

B. Sharpeys fibers

C. Tomes fibers

D. Interstitial fibers

7073. Histiocytes are_____________?
0

A. Allergic cells

B. Scavenger cells

C. Released in immunologic response

D. Leukocytes

7074. Most effective method of assessing breathing is by measuring____________?
0

A. Alveolar ventilation

B. Tidal volume

C. Respiratory rate

D. FEV 1

7075. The neuromuscular transmitter released at neuromuscular junction is_______________?
0

A. Nor epinephrine

B. Dopamine

C. Epinephrine

D. Acetylcholine

7076. The normal brown red color of feces results from the presence of_______________?
0

A. Stercobilin

B. Heme

C. Bilirubin diglucuronide

D. Biliverdin

7077. Which is caused by acetylcholine through nicotinic receptors_____________?
0

A. Decrease of heart rate

B. Contraction of pupils

C. Contraction of skeletal muscle

D. Secretion of saliva

7078. Delay in blood coagulation results from________________?
0

A. Ferric chloride

B. Heparin

C. Human thrombin

D. Vit- K

7079. Brush border is seen in________________?
0

A. Proximal convoluted tubule

B. Loop of Henle

C. Distal convoluted tubule

D. Bowmans capsule

7080. In peripheral tissues which of the following contains substance P______________?
0

A. Plasma cell

B. Nerve terminal

C. Mast cell

D. Vascular endothelium

Previous Next

Showing 7061 to 7080 of 10266 mcqs