When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the:

A) right ventricle to the right atrium
B) left ventricle to the left atrium
C) left atrium to the right atrium
D) right atrium to the left atrium
E) left ventricle to the right ventricle


Ans: B) left ventricle to the left atrium

Anatomy & Physiology

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A) yellow in the CNS and clear in the PNS. B) white and thick. C) clear and liquid. D) red.

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Variation in availability of oxygen among different animal habitats affects the ___________ component of Fick's law

a. A b. D c. ?P d. ?X e. none of these.

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In arthropods the midgut is also referred to as the

a. mesenteron b. antrum c. corpus d. filter chamber e. proctodaeum

Anatomy & Physiology

Histology is the study of the __________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology