The nervous system and certain chemicals can cause the constriction of a blood vessel. This is known as

A. platelet adhesion.
B. vascular spasm.

C. hemostasis.
D. coagulation.


B

Anatomy & Physiology

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The pigment produced by melanocytes is ________.

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

Anatomy & Physiology

The function of the conduction zone of the respiratory system

a. filter, b. warm, c. moisten, d. conduct air e. All of the above

Anatomy & Physiology

The organelles responsible for organizing microtubules that are a part of the mitotic spindle are called

A. microvilli. B. nucleoli. C. centrioles. D. vesicles. E. cilia.

Anatomy & Physiology

Aldosterone and cortisol are both considered to be essential for life

Indicate whether the statement is true or false

Anatomy & Physiology