Multiple Choice

1.  Fast pain is transmitted by

A.  Myelinated Ad fibers

B.  Myelinated F fibers

C.  Myelinated C fibers

    D.  Myelinated D fibers

    2.  Transduction for which of the following types of taste stimuli involves the closure of a K⁺ channel.

A.  Umami

B.  Sour

C.  Bitter

D.  None of the above.

3.  The semicircular canals have receptors that

A.  detect rotations of the head.

B.  are at right angles to one another.

C.  may be excited or inhibited.

    D.  All of the above.

4.    Which of the following is a monoamine neurotransmitter?

A.  Norepinephrine

B.  Acetylcholine

C.  GABA

    D.  Muscarine

True or False

5.           A sensory receptor that undergoes rapid adaptation to a maintained stimulus is called a tonic receptor.

6.           A nicotinic receptor is a type of serotonin receptor.

7.           Rods are the primary type of photoreceptor mediating color vision.

8.         Preganglionic sympathetic neurons originate in the thoracic or lumbar spinal cord.

Essay Question

9.  Describe the processes occurring within the cochlea that convert the sound stimulus into a change in activity of the auditory nerve.