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IMSPQ delegates selection

@ichakhairn ([email protected])

1. Which of these offers a non spesific defense againts viral infection?

a. Antibodies

b. Leukotriens

c. Interferon

d. Histamines

2. Which of these statements about Fab portion of antibodies is true?

a. It binds to antigens

b. Its amino acid sequences are variable

c. It consists of both H and L chains

d. All of these are true

3.

Which of these statements about complement proteins C3a and C5a is false?

a. They are released during the complement fixation process.

b. They stimulate chemotaxis of phagocytic cells.

c. They promote the activity of phagocytic cells.

d. They produces pores in the victim cell membrane

4.

If a person with normal lung function were to hyperventilate for several seconds, there would be

a significant

a. Increase in the arterial PO2

b. Decrease in the arterial PCO2

c. Increase in the arterial percent oxyhemoglobin saturation

d. Decrease in the arterial pH

5. If a person were to dive with scuba equipment to a depth of 66 feet, which of these statements

would be false?

a. The arterial PO2 would be three times normal

b. The oxygent content of plasma would be three times normal

c. The oxygen content of whole blood would be three times normal

d. There's no change in the oxygen pressure

6.

The bicarbonate concentration of the blood would be decreased during

a. Metabolic acidosis

b. Metabolic alkalosis
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c. Respiratory acidosis

d. Respiratory alkalosis

7. Which of these occur(s) during hypoxemia?

a. Increased ventilation

b. Increased production of 2,3 DPG

c. Increased production of erythropoietin

d. All of these

8.

Aldosteron stimulates sodium reabsorption and potassium secretion in

a. The proximal convulated tubule

b. The descending limb of the loopc. The ascending limb of the loop

d. The cortical collecting duct

9.

The countercurrent exchange in the vasa recta

a. Removes Na+ from the extracellular fluids

b. Maintains high concentrations of NaCl in the extracellular fluid

c. Raises the concentration of Na+ in the blood leaving the kidney

d. Causes large quantities of Na+ to enter the filtrate

10.

Scientists currently believe that the main barrier to the filtration of proteins into the glomerular

capsule is the

a. Capillary fenestrae

b. Basement membrane

c. Slit diaphragm

d. Macula densa

11.When the extracellular voiume is 12 L, what is the intracellular volume?

a. 6 L

b. 12 L

c. 18 L

d. 24 L

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17.How a change in venous return affects the stroke volume and end systolic volume?

a. Stroke volume increases and systolic volume decreases

b. Stroke volume decreases and systolic volume remains same

c. Stroke volume remains same and systolic volume remains same

d. Stroke volume increases and systolic volume remains same

18.During dehydration, how many times greater than plasma osmolarity is the most concentrated

urine?

a. 2 times

b. 3 times

c. 4 times

d. 8 times

19.What is the major anion in the glomerular filtrate?

a. Potasium

b. Sodium

c. Chloride

d. Phosphate

20.In hypoxia, if the venous partial pressure is 60 mmHg, what is the likely cause?

a. Histotoxic hypoxia

b. Anoxic hypoxia

c. Stagnant hypoxia

d. Anaemic hypoxia

21. Action of which major diurnal hormone explains why fat-rich food remains in stomach longer?

a. Secretin

b. CCK

c. Gastrin

d. Disaccharides

22.Name two blood parameters that determine the degree of renal-tubulo-ion secretion.

a. pCO2 level, blood pH

b. pO2 level, electrolites

c. Blood pH, electrolites

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d. pO2 level, pCO2 level

23.Thyroid hormones increase cell metabolism, state with reason if the partial pressure of CO2 also

changes.

a. Thyroid hormone also increases ventilation rate, so pCO2 unchanged

b. Thyroid hormone also decreases ventilation rate, so pCO2 unchanged

c. Thyroid hormone also increases ventilation rate, so pCO2 increases too

d. Thyroid hormone also increases ventilation rate, so pCO2 decreases

24.

Using a formula, state the relationship between heart rate, stroke volume, and cardiac output

a. HR = CO x SV

b. SV = CO x HRc. CO = HR x SV

d. SV = HR / CO

25.

In the up-right posture, why dont your mouth hang open due to the weight of your jaw?

Because of

a. Masseter muscle

b. Zygomaticus major muscle

c. Zygomaticus minor muscle

d. Levator anguli oris muscle

26.The partial pressure of CO2in alveolar air is greater than in expired air

True / False

27.In chronic DM with reduced GFR, the renal plasma threshold for glucose is increases

True / False

28.Intestinal epithelial cells secrete disaccharides into the lumen to digest maltose and lactose

True / False

29.The thalamus is essential in the localization of pain

True / False

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30.Damage to Brocas area leads to failure to read and understand written word

True / False

31.Name the renal intrinsic mechanism that compensates for GFR fluctuation.

a. Glomerulo-tubular balance

b. Glomerulo-filtrate balance

c. Tubular-ductal balance

d. Pelvic Renalis balance

32.

According to the Frank-Starling Law of the heart, the strenght of ventricular contraction is

a. Directly proportional to the end-diastolic volume

b. Inversely proportional to the end-diastolic volumec. Independent of the end-diastolic volume

d. None of them

33.

In the absence of compensation, the stroke volume will increase when

a. Blood volume increases

b. Venous return increases

c. Contractility increases

d. Arterial blood pressure increases

34.

Edema may caused by

a. High blood pressure

b. decrease plasma protein concentration

c. Leakage of plasma protein into the interstitial fluid

d. Blockage of lymphatic vessels

e. All of these

35.Both ADH and aldosterone act to

a. Increase urine volume

b. Increase blood volume

c. Increase total peripheral resistance

d. Produce all of these effects

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36.Blood pressure is lowest in

a. Arteries

b. Capillaries

c. Veins

d. Arteriole

e. Venules

37.

Angiotensin II

a. Stimulates vasocontriction

b. Stimulates the adrenal cortex to secrete aldosterone

c. Inhibits the action of bradykinin

d. Does all of these

38.Which of these organs is able to toleratethe greatest reduction in blood flow?

a. Brain

b. Heart

c. Skeletal Muscle

d. Skin

39.An increase in blood volume will cause

a. A decrease in ADH secretion

b. An increase in Na+ excretion in the urine

c. A decrease in renin secretion

d. All above

40.An ischemic injury to the heart that destroy myocardiac cells is

a. Angina pectoris

b. A myocardial infarction

c. Fibrillation

d. Heart block

41.The cells that normally have the fastest rate of spontaneus diastolic depolarization are located in

a. the SA node

b. the AV node

c. The bundle of His

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d. The Purkinje fibers

42.The second heart sound immediately follows the occurance of

a. The P wave

b. The QRS wave

c. The T wave

d. The U wave

43.During the phase of isovolumetric relaxation of the ventricles, the pressure in the ventricle is

a. Rising

b. Falling

c. First rising, then fallingd. Constant

44.Peristaltic waves of contractions move fluid within which of these vessels?

a. Arteries

b. Veins

c. Capillaries

d. Lymphatic vessels

e. All of these

45.

Which hormone from adrenal cortex is not under hypothalamic endocrine control?

a. aldosterone

b. angiotensine

c. renin

d. ADH

46.

In skeletal muscle fiber, name the basic contractile unit?

a. fasicles

b. sarcomere

c. epimysium

d. perimysium

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47.Name the two major ions secreted into saliva.

a. sodium and bicarbonate

b. potassium and phosphate

c. potassium and bicarbonate

d. sodium and phosphate

48.State how dilation of post-glomerular efferent arteriole affects filtration fraction.

a. decrease

b. increase

c. spasm

d. no effect

49.

A solution contains 100 mmol/L of sodium chloride and 100 mmol/L of urea, state osmolarity

and tonicity.

a. 180 mOsm/L, hypotonic

b. 300 mOsm/L, hypotonic

c. 300 mOsm/L, hypertonic

d. 180 mOsm/L, hypertonic

50.Name the major hypothalamic hormone involved in control of spermatogenesis.

a. GnRH

b. GH

c. ADH

d. Aldosterone

**** GOOD LUCK ****

University of Malaya is waiting for you, Sriwijaya Universitys Delegates!

soal imspq 2015

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