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The aortic valve maintains one-way blood flow to the aorta from the

Keratin is a ________ that is secreted by cells of the epidermis to waterproof the skin and protects against abrasion.

To raise the mandible during chewing you would need to contract what two muscles?

Eccrine sweat glands are located ______.

The axial skeleton includes ______.

Within the kidneys, there are millions of microscopic units that carry out the functions of producing urine. These functional units are called:

Which of the following generates and transmits nerve impulses that arouse the cerebrum to wakefulness?

________ is secreted by beta cells of pancreas, its secretion is stimulated by ________ in blood glucose level.

The ___________ is the portion of a neuron that contains the nucleus and the other usual cytoplasmic organelles.

If body temperature increases above normal, ______.