Nerve fibers in the phrenic nerves that innervate the diaphragm arise primarily from what plexuses?

A) brachial
B) cervical
C) lumbar
D) sacral


Ans: B) cervical

Anatomy & Physiology

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The ________ nervous system provides involuntary regulation of smooth muscle, cardiac muscle, and glandular activity

A) somatic B) autonomic C) sensory division of the peripheral D) automatic E) special sensory

Anatomy & Physiology

Growth of the uterus during pregnancy is accomplished by _________ of its smooth muscle

A.   neither hypertrophy nor hyperplasia B.   both hypertrophy and hyperplasia C.   hypertrophy but not hyperplasia D.   hyperplasia but not hypertrophy

Anatomy & Physiology

The ________ lines the chambers of the heart, covers the heart valves, and is continuous with the endothelium

A) epicardium B) myocardium C) endocardium D) visceral pericardium E) parietal pericardium

Anatomy & Physiology

Damage to the cervical nerve plexus can cause problems with ________

A) footdrop B) clawhand C) breathing D) wristdrop

Anatomy & Physiology