Mcq Subject: Physiology
Vagal stimulation of the hea causes:
A. Increased hea rate
B. Increased R-R interval in ECG
C. Increased force of hea contraction
D. Increased cardiac output
View DescriptionIn Cushing syndrome, which of the following are seen –
A. |Aldosterone
B. |Aldosterone
C. |Epinephrine
D. |norEpinephrine
View DescriptionTrue regarding autonomic system is :
A. High center of integration is medulla oblongata.
B. Conduction autonomic fibers are same as in somatic motor fibers.
C. Preganglionic parasympathetic fibers are lengthier.
D. Ratio of pregnanglionic and post ganglionic fibers is 20:1.
View DescriptionAcromegaly is due to excess of:
A. Somatomedin
B. Growth hormone
C. Somatostation
D. Insulin
View DescriptionAll of the following are true about excitation-contraction coupling except
A. Acetylcholine is released at the nerve terminal
B. Calcium is pumped back into the sarcoplasmic reticulum during relaxation
C. Calcium is released from sarcoplasmic reticulum during contraction.
D. Calcium binds to tropomyosin to initiate muscle contraction.
View DescriptionSense organ which is having efferent supply
A. Golgi tendon organ
B. Organ of coi
C. Retina
D. Taste bud
View DescriptionNegative BMR is observed with:
A. Pituitary disturbance
B. Thyroid disturbance
C. Parathyroid
D. All of the above
View DescriptionMaximum pressure in left ventricle is seen in which phase of cardiac cycle ?
A. Isovolumetric contraction
B. Ventricular ejection
C. Protodiastole
D. Rapid ventricular filling
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