PHYSIOLOGY | pgaiims-Fort-Worth-Star-Telegram

Showing posts with label PHYSIOLOGY. Show all posts

Showing posts with label PHYSIOLOGY. Show all posts

J11 Phy 26. Phagocytosis

9:37 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: All of the following about phagocytosis are true except:

(a) Amoeba and other unicellular protozoa make their living out of this.
(b) Used to ingest particles < 0.5 micron in size.
(c) Used to ingest particles > 0.5 microns in size.
(d) Digestion occurs within phagolysosomes.

A: b. Used to ...<0.5

J11 Phy 25. Basal Metabolic Rate

9:35 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: BMR depends on:

(a) Lean body mass
(b) Body mass index
(c) Obesity
(d) Body surface area.

A: a. Lean body...

J11 Phy 24. Papez circuit

9:34 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: The nucleus involved in Papez circuit is:

(a) Pulvinar
(b) Intralaminar
(c) VPL nucleus
(d) Anterior nucleus of thalamus.

A: d. Anterior....

J11 Phy 23. Reproductive Cycles

9:33 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: Which of the following is not seen in humans:

(a) Estrous cycle
(b) Menstrual cycle.
(c) Endometrial cycle.
(d) Ovarian cycle.

A: a. Estrous...

J11 Phy 22. Orthopnea

9:31 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: Orthopnea in heart failure develops due to:

(a) Reservoir function of pulmonary veins.
(b) Reservoir function of leg veins.
(c) Reservoir function of pulmonary arteries.
(d) Reservoir function of leg arteries.

A: b. leg veins..

J11 Phy 21. Mountain sickness

9:30 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: A mountaineer is observed to have a hematocrit of 70%. Which of the following represents the most likely cause:

(a) Polycythemia with increased red cell mass.
(b) Relative polycythemia due to dehydration.
(c) Polycythemia due to hemoconcentration.
(d) Polycythemia with high altitude pulmonary edema.

A: a. Polycythemia...

J11 Phy 20. Plethysmography

9:27 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: A man connected to a body plethysmograph for estimation of FRC inspires against a closed glottis. Which of the following statements is true:

(a) The pressure in both the lungs and box increases.
(b) The pressure in both the lungs and box decreases.
(c) The pressure in the lungs decreases but that in the box increases.
(d) The pressure in the lungs increases but that in the box decreases.

A:c.lung de.., box in..

J11 Phy 19. Compliance

9:23 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: Pulmonary compliance is decreased in all of the following conditions, except:

(a) Pulmonary congestion
(b) COPD
(c) Decreased surfactant
(d) Pulmonary fibrosis.

A: b. COPD

J11 Phy 18. Laminar air flow

9:22 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: Small airways have laminar air flow because:

(a) Reynold's number > 2000
(b) Very small diameter
(c) Extremely low velocity
(d) Low cross sectional area.

A: c. Extremely...

J11 Phy 17. Water reabsorbation

9:20 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: Maximum water reabsorption in gastrointestinal tract occurs in:

(a) Stomach
(b) Jejunum
(c) Ileum
(d) Colon.

A: b. Jejunum.

J11 Phy 16. Nitric Oxide

9:19 AM | Labels: AIPGMEE 2011, PHYSIOLOGY

Q: The primary action of nitric oxide in the gastrointestinal tract is:

(a) Vasodilation
(b) Vasoconstriction
(c) GI smooth muscle relaxation.
(d) GI slow smooth muscle contraction.

A:c. GI smooth....

M 11 P 25 - Nitrogen narcosis

11:30 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. Nitrogen narcosis is due to :

a. Nitrogen inhibits dismutase enzyme.
b. Increase production of nitrous oxide.
c. Increased solubility of nitrogen in nerve cell membrane
d. Decrease in oxygen free radicals.

Answer: c. Increased solubility of nitrogen in nerve cell membrane.

M 11 P 24 - Renal clearance

11:28 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. Which of the following statement is true?

  a. Fluid coming from descending limb of loop of Henle is hypotonic.
  b. Descending limb of loop of Henle is permeable to solutes.
  c. If clearance of a substance is greater than GFR, then tubular secretion must be present.
  d. Clearance of a substance is always more than GFR if there is tubular secretion.

Answer:
c. If clearance of a substance is greater than GFR, then tubular secretion must be present.

M 11 P 23 - CSF pressure

11:24 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. CSF pressure is mainly regulated by:

  a. Rate of CSF formation.
  b. Rate of CSF absorption.
  c. Cerebral blood flow.
  d. Venous pressure.

   Answer: b. Rate of CSF absorption.

M11 P22 - Postprandial motility

11:22 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. Maximum post prandial motility is seen in:

  a. Ascending colon.
  b. Transverse colon.
  c. Descending colon.
  d. Sigmoid colon.

  Answer:
c. Descending colon

M11P21 - Angiotensin

11:20 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. Angiotensin II causes all of the following except:
  a. Stimulation of thirst.
  b. Aldosterone secretion.
  c. Increased ADH secretion.
d. Vasodilation.

  Answer:
d. Vasodilation

M11P20 - Myocardial Oxygen

11:18 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. True regarding myocardial Oxygen demand:
  a. Inversely related to heart rate.
  b. Has constant relation to external cardiac work.
  c. Directly proportional to the duration of systole.
  d. Is negligible at rest.

  Answer:
b. Has constant relation to external cardiac work.

M11P19 - Regulation of respiration

11:13 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. The primary direct stimulus for excitation of central chemoreceptors regulating ventilation is:

a.Increased H+
b.Increased CO2
c.Increased O2
d.Decreased CO2

Answer:
a. Increased H+

M11P18- Energy expenditure

11:09 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Q. Energy expenditure in resting state depends on:

a. Lean body mass.
b. Adipose tissue.
c. Resting heart rate.
d. Exercise.

Answer:
a. Lean body mass.

M11P17- Vasomotor centre

9:20 AM | Labels: AIIMS MAY 2011, PHYSIOLOGY

Vasomotor centre of medulla is associated with:

a. Acts with the cardiovagal centre to maintain BP.
b. Independent of corticohypothalamic inputs
c. Influenced by baroreceptors, not chemoreceptors
d. Essentially silent in sleep.

Answer:
a. Acts with cardiovagal centre to maintain BP.

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