A. Due to closure of semilunar valves
B. Is occasionally split
C. Has longer duration than 1st heart sound
D. Marks the onset of diastole
Related Mcqs:
- Granuloma is characterized by all of the following except______________?
A. A specific type of chronic inflammation
B. Accumulation of modified macrophages
C. Initiated by a number of infectious and non infectious agents
D. A reaction of acute inflammation - The first heart sound is produced by the_____________?
A. Closure of the aortic and pulmonary valves
B. Opening of the aortic and pulmonary valves
C. Closure of the mitral and tricuspid valves
D. Opening of the mitral and tricuspid valves - First heart sound occurs during the period of________________?
A. Isotonic relaxation
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. Isotonic contraction - The following factors increase the cardiac output except______________?
A. Preload
B. After load
C. Heart rate
D. Myocardial contractility - In cerebellar disease, all the statements are correct except______________?
A. The romberg’s sign is positive
B. There is adiodokokinesia
C. There is pendular knee jerk
D. There is involuntary termor - Following are extrapyramidal tracts except______________?
A. Reticulospinal
B. Corticospinal
C. Rubrospinal
D. Vestibulospinal - All are features of skeletal muscle except______________?
A. Cylindrical
B. Transverse striation
C. Centrally placed nuclei
D. Multiple nuclei - Thyroxine causes all the following except______________?
A. Decreased cell metabolism
B. Increased oxygen consumption
C. Increased pulmonary ventilation
D. Increased basal metabolism - Regarding myxedema the following are true except______________?
A. Swollen, oedematous look of the face
B. Impotency, amenorrhea
C. B.M.R increased by 30 -45%
D. Dullness, loss of memory - All the following causes the secretion of gastric juice during cephalic phase EXCEPT______________?
A. Food in the mouth
B. Sight of food
C. Food in the stomach
D. Thought of food
