Exam 25: Neural Control and the Senses

You've just finished a big meal and are relaxing in front of a fire reading your favorite book. The ____ division of your ____ nervous system is at work.

Sensory neurons responsible for somatic sensations are located in the ____.

Cerebrospinal fluid ____.

When you feel threatened, the neurotransmitter norepinephrine is released from the adrenal gland in response to stimuli by ____ neurons.

Which animal is bilaterally symmetrical and has a pair of ganglia instead of a true brain?

____ allow honeybees to navigate.

An example of an animal that has a nerve net of interconnected neurons instead of a brain is a(n) ____.

Which animal has an anteriorly located brain and a dorsal nerve cord?

Once the threshold potential of a nerve impulse is achieved, ____.

The region of the brain with the highest concentration of neurons is the ____.

The forebrain includes which portions of the brain?

The ____ detect(s) sounds by receiving action potentials that are generated by and stimulated by ____ .

Repeated head injuries increase the risk of a neurodegenerative disorder called ______.

An example of an animal with paired nerve cords that connect to a simple brain is a   ____.

A reflex ____.

People who work in department stores where music is played constantly in overhead speakers claim they do not hear the music. This is an example of ____.

Action potentials ____.

Where in the brain is the corpus callosum?

The ____ of the eye focuses light on the eye's photoreceptors. In the above diagram of the eye, which letter identifies it?