The gray ramus communicans contains axons of _____ neurons.

Adrenergic receptors are located on (or in)…

According to the “labeled-line” model, the perception of a stimulus is determined by the sensory ________ being activated.

In photoreceptor cells, the cyclic nucleotide-gated (CNG) channel is _________ when “in the dark”.

Gonadotropin-release hormone (GnRH) causes secretion of:

The “fight or flight” response results from activation of the ____________ nervous system.

In the inner hair cells of the spiral organ (of Corti), bending of stereocilia causes influx of K+ ions.

Sympathetic activity causes pupillary ________.

_______ is a sleep disorder characterized by sudden REM sleep during normal periods of wakefulness.

The _________ level of sensory integration occurs in the primary somatosensory cortex.