Mcq Subject: Physiology
Best index to measure cardiac afterload is:
A. Mean aerial pressure
B. LV end diastolic pressure
C. LV mean systolic pressure
D. Total peripheral resistance
View DescriptionBaroreceptor is which type of feedback?
A. Negative feedback
B. Positive feedback
C. Both negative and positive
D. Feed forward control
View DescriptionWhich of the following rightly describes the mechanism of “Pressor Escape” in SIADH?
A. Characterized by sudden increase in urine volume with decrease in urine osmolality independent of circulating vasopressin levels.
B. Characterized by sudden increase in urine volume with decrease in urine osmolality dependent of circulating vasopressin levels.
C. Characterized by sudden decrease in urine volume with increase in urine osmolality independent of circulating vasopressin levels.
D. Characterized by sudden decrease in urine volume with increase in urine osmolality dependent of circulating vasopressin levels.=
View DescriptionThe most common problem with blood transfusion is:
A. Hemolytic reaction
B. Remission of disease
C. Hypokalemia
D. Metabolic acidosis
View DescriptionA phenomenon by which a sustance appears different under varying conditions of colour is called as?
A. Mesomerism
B. Metamerism
C. Fluorescence
D. Refractive index
View DescriptionGlucocorticoids decrease inflammatory reaction by reducing:
A. Activity of histamine
B. Release of histamine
C. Fibroblastic activity
D. Neutrophils
View DescriptionRelease of synaptic vesicle from presynaptic terminal is inhibited by
A. Inhibition of conduction of nerve impulse
B. Prevention of sodium influx
C. Prevention of calcium influx
D. Prevention of depolarization of nerve terminal
View DescriptionMyosin head detachment from actin is triggered by:-
A. Change in troponin c configuration
B. Entry of Ca into sarcoplasmic reticulum
C. Binding of ATP to head
D. Hydrolysis of ATP to ADP and Pi
View DescriptionWhich centre first gets the input from neural control of CVS?
A. RVLM
B. NTS
C. Nucleus ambiguous
D. Raphe Nucleus
View DescriptionAdrenaline used for controlling of bleeding during surgery may result in:
A. Syncope
B. Cardiac arrhythmias
C. Drastic fall in blood pressure
D. Precipitation of allergic reaction
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