In terms of time, at rest one cardiac cycle lasts

A) about a half second.
B) 5 seconds.
C) about 1.5 seconds.
D) a little under 1 second.
E) None of the answers are correct.


D) a little under 1 second.

Anatomy & Physiology

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The ________ nerve, which arises in the cervical plexus, innervates the diaphragm

A) ansa cervicalis B) lesser occipital C) radial D) phrenic E) sciatic

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Name the layer labeled D

a) Submucosa b) Serosa c) Longitudinal muscle d) Mucosa e) Circular muscle

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Lymphatic capillaries are present in ________

A) digestive organs B) CNS C) bones and teeth D) bone marrow

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Label G represents which of the following structures?


A) syncytial trophoblast
B) developing villi
C) lacuna
D) uterine gland
E) amniotic cavity

Anatomy & Physiology