Which statement is not true?

A. During ventricular systole, the pulmonary semilunar valve is open.
B. During ventricular systole, the atria are filling with blood.
C. During ventricular systole, the bicuspid valve is open.
D. During ventricular systole, the aortic semilunar valve is open.
E. During ventricular systole, the tricuspid valve is closed.


C. During ventricular systole, the bicuspid valve is open.

Anatomy & Physiology

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Which would most directly decrease the production of aldosterone?

A. Ingesting extra dietary vitamin D B. Injecting a drug that blocks the production of angiotensin II C. Increasing dietary cholesterol D. Going on a low-salt diet E. Reducing dietary tyrosine

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An exaggerated lumbar curvature is called

A. hunchback. B. scoliosis. C. lordosis. D. kyphosis.

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The number of bones in the adult human skeleton is 126.

Answer the following statement true (T) or false (F)

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Embryonic skeletons consist primarily of elastic cartilage, which is gradually replaced by bone during development and growth.

a. true b. false

Anatomy & Physiology