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Mcqs MBBS Exams India
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(Single Best Answer) Question 21: Which of the following methods is not used for measurement of body fluid volumes ?
A) Antipyrine for total body water
B) Inulin for extracellular fluid
C) Evans blue for plasma volume
D) I-albumin for blood volume
Answer (Select an option above to get the answer):
(Single Best Answer) Question 22: There is mutation of gene coding for the ryanodine receptors in malignant hyperthermia. Which of the following statements best explains the increased heat production in malignant hyperthemia ?
A) Increased muscle metabolism by excess of calcium ions
B) Thermic effect of blood
C) Increased sympathetic discharge
D) Mitochondiral thermogenesis
Answer (Select an option above to get the answer):
(Single Best Answer) Question 23: According to myogenic hypothesis of renal autoregulation, the afferent arterioles contract in response to stretch induced by ?
A) NO release
B) Noradrenaline release
C) Opening of Ca2+ channels
D) Adenosine release
Answer (Select an option above to get the answer):
(Single Best Answer) Question 24: All of the following transport processes follow 'saturation kinetics' except ?
A) Facilitated diffusion
B) Na+ - Ca+ exchanger
C) Simple diffusion
D) Na+ coupled active transport
Answer (Select an option above to get the answer):
(Single Best Answer) Question 25: An anterolateral cordotomy relieving pain in right leg is effective because it interrupts the ?
A) Left dorsal column
B) Left ventral spinothalmic tract
C) Left lateral spinothalmic tract
D) Right lateral spinothalmic tract
Answer (Select an option above to get the answer):
(Single Best Answer) Question 26: Fetal haemoglobin has all the following characteristic features except ?
A) Strong affinity for 2, 3 - DPG
B) Oxygen dissociation curve is shifted to left
C) At low fetal PO2 gives more oxygen to tissues than adult haemoglobin
D) Forms 80 % of haemoglobin at birth
Answer (Select an option above to get the answer):
(Single Best Answer) Question 27: Beta waveforms in electroencephalogram designate which of the following states of the patient ?
A) Deep Anaesthesia
B) Surgical Anaesthesia
C) Light Anaesthesia, eyes closed, relaxed
D) Awake / alert state
Answer (Select an option above to get the answer):
(Single Best Answer) Question 28: Zona glomerulosa secretes hormones in response to ?
A) ACTH
B) Aldosterone
C) Corticosteroids
D) Renin
Answer (Select an option above to get the answer):
(Single Best Answer) Question 29: Receptive Relaxation is a property of ?
A) Entire Stomach
B) Proximal Stomach
C) Distal Stomach
D) None of the above
Answer (Select an option above to get the answer):
(Single Best Answer) Question 30: Papez circuit in limbic system involves ?
A) Anterior thalamic nucleus
B) Anterior hypothalamic nucleus
C) Posterior hypothalamic nucleus
Answer (Select an option above to get the answer):