13. The Peripheral Nervous System

Which parts of the body have the greatest amount of space dedicated to them in the primary somatosensory cortex? Why?

The cell bodies of upper motor neurons reside in the ________ and function to ________, whereas the cell bodies of lower motor neurons reside in the ________ and function to ________.

Tactile nerve endings, tactile corpuscles, bulbous corpuscles, and lamellated corpuscles are all types of:

a. Nociceptors

b. Mechanoreceptors

c. Photoreceptors

d. Chemoreceptors

Which of the following is true of the autonomic, but not the somatic, nervous system?

a. Neurotransmitter is acetylcholine

b. Axons are myelinated

c. Effectors are muscle cells

d. It has motor neurons located in ganglia

Owen is a grad student who does research on sensory receptors. When classifying receptors, he organizes them based on if respond to external or internal stimuli. Owen is classifying receptors by:

Dorsal root ganglia contain

(a) cell bodies of somatic motor neurons

(b) axon terminals of somatic motor neurons

(c) cell bodies of autonomic motor neurons

(d) axon terminals of sensory neurons

(e) cell bodies of sensory neurons.