In the membrane of a resting nerve cell, when chemically gated Cl- channels open,

A) Cl- ions leave the cell and the cell becomes depolarized.
B) Cl- ions enter the cell and the cell becomes depolarized.
C) the cell becomes depolarized.
D) Cl- ions leave the cell.
E) Cl- ions enter the cell.


E) Cl- ions enter the cell.

Anatomy & Physiology

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The connective tissue wrapping that surrounds bundles (fascicles) of axons is the

A.  epineurium. B.  endoneurium. C.  perineurium. D.  endosteum. E.  periosteum.

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An element's atomic number is determined by the number of ________ in one atom of that element.

A. electrons B. atomic mass units C. nuclei D. protons E. neutrons

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What organ(s) play(s) a role in the excretion of sodium?

Skin Kidneys Lungs Liver

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Which group of muscles comprises the shoulder muscles?

A) trapezius group B) deltoid group C) rhomboideus group D) pectoralis group

Anatomy & Physiology