The anterior surface of the heart consists mostly of this chamber.

A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle


Answer: D. Left ventricle

Anatomy & Physiology

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Receptor-mediated endocytosis removes ________ molecules from plasma, delivering cholesterol to the tissues.

A. triglycerides B. LDL C. HDL D. VLDL

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Air-filled chambers found in several bones of the skull are called

A) conchae. B) sinuses. C) fontanelles. D) sutures. E) fossae.

Anatomy & Physiology

Causes of erectile dysfunction include

A) too much exercise. B) underlying disease, such as diabetes mellitus. C) not enough sex. D) too much sex.

Anatomy & Physiology

The tibialis ________ dorsiflexes and inverts the foot.

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

Anatomy & Physiology