Engineer & Medical

Body Fluids and Circulati question bank (Zoology)

Practice 411 free Engineer & Medical Zoology - Body Fluids and Circulati questions with answers and step-by-step solutions.

Q1.

The opening between the right atrium and the right ventricle is guarded by __________.

(A)
sino-atrial node
(B)
bicuspid valve
(C)
tricuspid valve
(D)
semilunar valve
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Q2.

The number of action potentials generated by sino-arterial node (SAN) in a healthy human is __________ per minute.

(A)
$120-140$
(B)
$28-30$
(C)
$70-75$
(D)
$100-110$
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