The most important facial muscle used in blinking is the ________.

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


orbicularis cocculi

Anatomy & Physiology

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When the nervous system signals a muscle to contract, ________ ion channels open.

A. phosphorus B. sodium C. myosin D. actin

Anatomy & Physiology

Short reflexes of digestion involve the glossopharyngeal and vagus nerves

Indicate whether this statement is true or false.

Anatomy & Physiology

Which fibers generate more force?

A) fast-twitch fibers B) slow-twitch fibers

Anatomy & Physiology

Red bone marrow functions in the formation of

A) red blood cells only. B) white blood cells only. C) red and white blood cells only. D) red blood cells, white blood cells, and platelets.

Anatomy & Physiology