The most anterior opening in the diaphragm is the

A. caval hiatus.
B. esophageal hiatus.
C. aortic hiatus.
D. None of the above


Answer: A

Anatomy & Physiology

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The principal hormone that prepares the uterus for pregnancy is __________.

a. FSH b. progesterone c. estrogen d. LH

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Epithelial membranes are typically composed of

A. epithelium and underlying connective tissue. B. connective tissue and underlying epithelium. C. connective tissue and underlying muscle tissue. D. epithelium and underlying muscle tissue.

Anatomy & Physiology

_________ macrophages engulf foreign particles that might be inhaled into the small sacs in the lungs

Fill in the blank(s) with correct word

Anatomy & Physiology

A needle used in a spinal tap must be inserted until its tip is in the

A) epidural space. B) arachnoid mater. C) peridural space. D) subdural space. E) subarachnoid space.

Anatomy & Physiology