Search
.Management Sciences
Category: Cardiovascular system
The following factors increase the cardiac output except______________?
A. Preload
B. After load
C. Heart rate
D. Myocardial contractility
Heart muscle, true are all except_______________?
A. Act as syncytium
B. Has multiple nuclei
C. Has gap junctions
D. Has branching
The largest function of the total peripheral resistance is due to _________________?
A. Venules
B. Arterioles
C. Capillaries
D. Precapillary sphincters
Cardiac output is a measure of______________?
A. Peripheral resistance X tissue fluid
B. Peripheral resistance X cardiac rate
C. Blood pressure X cardiac rate
D. Heart rate X blood volume
Increased functional demand on the heart produces increased size of the myocardium by _______________?
A. Hyperplasia
B. Hypertrophy
C. Fatty infiltration
D. Increased amounts of fibrous connective tissue
Cardiac index is related to ______________?
A. cardiac output and body weight
B. Cardiac output and body surface area
C. Cardiac output and work of the heart
D. Stroke volume and pulse rate
Parasympathetic stimulation of heart causes______________?
A. SA node decreases firing
B. Increased AV node excitability
C. Decreased ventricular contraction
D. Tachycardia
Ventricular muscle receives impulses directly from the_______________?
A. Purkinje system
B. Bundle of HIS
C. Right and left bundle branches
D. AV node
Stroke output of each ventricle in normal adult is_____________?
A. 30 ml
B. 130 ml
C. 70 ml
D. 5 liters
Recent Comments