During the first 15 seconds of intense exercise, such as sprinting or power lifting, most of the energy is provided by ___________.

A) ATP in muscle fiber.
B) ATP in muscle fiber and phosphocreatine.
C) carbohydrate oxidation.
D) phosphocreatine.
E) fat oxidation.


B) ATP in muscle fiber and phosphocreatine.

Anatomy & Physiology

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Erection is caused by muscle contraction in the penis.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

A ____ epithelium has several layers of epithelial cells thick

a. simple b. stratified c. pseudostratified d. columnar

Anatomy & Physiology

Which of these body regions is located on the posterior body surface?

A) antebrachial B) umbilical C) gluteal D) plantar E) pubic

Anatomy & Physiology

By binding to the Ca2+ channel proteins, drugs known as calcium channel blockers have two main effects. Name them. Why are some cells unaffected by these drugs?

What will be an ideal response?

Anatomy & Physiology