Why is it important for arteries to be compliant? a:This allows gas exchange acr

Question

Why is it important for arteries to be compliant?

a:This allows gas exchange across their membranes.

b: They must be able to move as the body and heart moves

c: They have to stretch as blood is injected into them from the ventricles.

d: This keeps them from ballooning or expanding as blood is injected into them from the heart.

What would happen if the sinoatrial node was moved to the upper region of the right atrium?

a: Nothing, it is normally on the right atrium

b: The ventricles would contract before the atria.

c: The atrium and ventricle for the pulmonary circuit would contract before the chambers used in the systemic circuit.

d: The atrium and ventricle for the systemic circuit would contract before the chambers used in the pulmonary circuit.

Explanation / Answer

answers:

1) d

Explanation: This keeps from ballooning or expanding as blood is injected into them from the heart.

2) c

Explanation: The atrium and ventricle for the pulmonary circuit would contract before the chambers used in the systemic circuit.

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