When arterial blood pressure increases above the normal range, receptors within arteries are stimulated which send impulses to the vasomotor center in the medulla oblongata in the brain.  In response, the vasomotor center sends out fewer impulses to the blood vessels, causing vasodilation of the blood vessels that results in a decrease in blood pressure.  This aspect of blood pressure homeostasis is an example of a:

_______ is a glucocorticoid.

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A molecule that activates a receptor is called a(n):

The first stage of sleep is called:

The primary motor cortex is part of the _______ level of motor control.

Parasympathetic activity causes pupillary _________.

The protein portion of rhodopsin is the ________.

Learning and memory are mediated by the ________.

The sympathetic trunk contains somas of ________ neurons.