The velocity of blood flow is ________.

A) in direct proportion to the total cross-sectional area of the blood vessels
B) slower in the arteries than in capillaries because arteries possess a relatively large diameter
C) slower in the veins than in the capillaries because veins have a large diameter
D) slowest in the capillaries because the total cross-sectional area is the greatest


D) slowest in the capillaries because the total cross-sectional area is the greatest

Anatomy & Physiology

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Parasympathetic functions include ________.

A) a stimulation of heart rate and force of contraction B) allowing the body to cope with an external threat C) lens accommodation for close vision D) mobilizing storage energy sources

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This structure, present in the cow eye but not in the human eye, is a special iridescent reflecting surface that helps animals to see in low light conditions

A) ciliary body B) tapetum lucidum C) pigmented sclera D) vascular layer

Anatomy & Physiology

What structure in the female is composed of erectile tissue?

A) Clitoris B) Labia minora C) Mons pubis D) Perineum

Anatomy & Physiology

The spring-like property that returns muscle to its original length after a contraction ends is

A.  extensibility. B.  elasticity. C.  contractility. D.  treppe effect. E.  conductivity.

Anatomy & Physiology