Label O represents which structure(s)?

A) myenteric plexus
B) artery and vein
C) lymphatic vessel
D) submucosal plexus
E) mucosal glands


C) lymphatic vessel

Anatomy & Physiology

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The most rapid conduction of an impulse along an axon occurs on a fiber that is

A) thick and myelinated. B) thin and unmyelinated. C) thick and unmyelinated. D) thin and myelinated.

Anatomy & Physiology

An endothelium that appears pleated or rippled is characteristic of which of the following?

a. capillaries b. veins c. arteries d. none of the listed responses is correct

Anatomy & Physiology

A bee sting can trigger a massive release of histamine, which causes ________ and a(n) ________ in arterial blood pressure.

A. vasoconstriction; increase B. vasoconstriction; decrease C. vasodilation; increase D. vasoconstriction; oscillation E. vasodilation; decrease

Anatomy & Physiology

This type of membrane lines a body cavity that does NOT open directly to the outside.

a. Cutaneous b. Serous c. Mucous d. Basement e. Connective.

Anatomy & Physiology