12.1 – Overview of the Nervous System

Question 1

the brain and spinal cord are components of the ___ nervous system, while the nerves and ganglia are components of the ___ nervous system

Answer 1

central, peripheral

Question 2

the knoblike swelling in a nerve where neuron cell bodies are found is called a(n) ___

Answer 2

ganglion

Question 3

which term refers to the part of the PNS that carries signals from various receptors to the CNS?

Answer 3

visceral sensory neurons

Question 4

the sensory division of the PNS is further subdivided into the ___ sensory division, which carries signals from receptors in the skin, muscles, bones, and joints, and the ___ sensory division, which carries signals from organs of the thoracic and abdominal cavities.

Answer 4

somatic
visceral

Question 5

the sensory and motor divisions of the peripheral nervous system are further split into which 2 subdivisions?

Answer 5

somatic and visceral

Question 6

the motor division is also called the ___ division

Answer 6

efferent

Question 7

what are the 2 major anatomical subdivisions of the nervous system?

Answer 7

central and peripheral nervous systems

Question 8

the plural form of ganglion is ___

Answer 8

ganglia

Question 9

taken together, the sensory and motor subdivisions make up which of the following?

Answer 9

peripheral nervous system

Question 10

the motor division of the PNS is further subdivided into the ___ motor division that carries signals to the skeletal muscles and the ___ motor division (also known as the autonomic nervous system), which carries signals to glands, cardiac muscle, and smooth muscle.

Answer 10

somatic
visceral

Question 11

which term describes all neurons that carry signals towards the CNS?

Answer 11

afferent