Sympathetic stimulation of cardiac muscle cells produces stronger and faster contractions because proteins that pump Ca2+ out of the cell are inhibited, which reduces Ca2+ concentration in the sarcoplasm

Indicate whether the statement is true or false.


FALSE

Anatomy & Physiology

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Explain the contributions of the paranasal sinuses

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On an axial image, the colliculi are seen anterior to the quadrigeminal cistern and posterior to the

A. peduncles. B. anterior cerebellar notch. C. pineal gland. D. fourth ventricle.

Anatomy & Physiology

The portion of the hair that extends above the surface of the skin is the ________.

A. medulla B. shaft C. cuticle D. root E. hair bulb

Anatomy & Physiology