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Testosterone is secreted by 

In a cortical nephron, the efferent arteriole gives rise to the ________.

Which one of the following is not a way that intensity is encoded?

The pyramids are the largest descending sensory tracts in the medulla oblongata.

_______________ is the ability of the brain to identify the site of stimulation in the body.

Match the sensory receptor with the best description of the receptor.

A ______________ is a structure composed of nervous tissue along with other tissues that enhance its response.

_______________ are phasic receptors for light touch and texture that are located in the mucous membranes of the lips, tongue, and conjunctiva.

Which one of the following receptors will adapt quickly to stimuli?

The eyebrows help to keep sweat out of the eye.