Acid-base buffers are the first line of defense against shifts in pH because

A) they are fast. B) they occur in everyone.
C) they occur closest to the skin. D) they are slow and prolonged.


A

Anatomy & Physiology

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The dermis is composed largely of

A) adipose. B) fluid connective. C) dense irregular connective. D) muscle. E) neural.

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The substance that prevents collapse of the alveoli during exhalation is __________.

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

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Increased cardiac output would result from increasing:

A) stroke volume B) blood viscosity C) heart rate D) vasoconstriction E) both A and C F) both B and D

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Identify the hormone-secreting cells of the pineal gland

A) melanocytes B) islets of Langerhans C) pineal islets D) pinealocytes E) alpha cells

Anatomy & Physiology