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The ________ nervous system signals blood vessels to constrict.

This is a condition where an artery has become abnormally widened because of a localized weakness in the arterial wall.

The deepest layer of the epidermis where new keratinocytes are formed is called the:

The end of a long bone is known as the ________.

Capillary beds receive blood from vessels called ________.

_______ decreases the blood ability to clot.

Which of the following hormones are released in the medulla of the adrenal glands?

The smallest functional contractile units of the muscle are known as:

The __________ is a fold of tissue that covers the nail root.

The presence of foreign antigens are detected by __________.