Neuro #1

Question 1

A division of the nervous system containing neurons whose entire structure lies within the brain and/or spinal cord.

Answer 1

Central Nervous System

Question 2

A division of the nervous system containing neurons whose structure lies either entirely or partly outside the brain and spinal cord.

Answer 2

Peripheral Nervous System

Question 3

A division of the nervous system associated with the (mostly) conscious and voluntary control of
body movement via the use of skeletal muscles.

Answer 3

Somatic Nervous System

Question 4

The somatic nervous system consists of both:

Answer 4

afferent (sensory) and

efferent (motor) nerves

Question 5

A substantial portion of the somatic nervous system is represented by the 43 different segments of nerves, including [] pairs of cranial and [] pairs of spinal nerves, which help us perform daily functions

Answer 5

12

31

Question 6

[] involves the use of interneurons to perform reflexive (largely unconscious and involuntary) actions.

Answer 6

Spinal reflex arcs

Question 7

The [] regulates a variety of body

processes that takes place involuntarily and without conscious effort

Answer 7

Autonomic nervous system (ANS)

Question 8

The Autonomic Nervous System consists of three sub-divisions:

Answer 8

• Sympathetic Nervous System (SNS)
• Parasympathetic Nervous System (PNS)
• The Enteric Nervous System

Question 9

simplistically involves visceral

reactions involved in “fight or flight”

Answer 9

Sympathetic Nervous System (SNS)

Question 10

simplistically involves
visceral reactions involved in “feeding and breeding.” Can also be
remembered more specifically by the mnemonic, “SLUDDD.”
– Salivation – Digestion
– Lacrimation – Defecation
– Urination – Duplication

Answer 10

Parasympathetic Nervous System (PNS)

Question 11

SLUDDD

Answer 11

– Salivation – Digestion
– Lacrimation – Defecation
– Urination – Duplication

Question 12

an extensive, web-like structure that is
capable of functioning independently of the remainder of the nervous system. Involved in digestion and enteric endocrine function

Answer 12

The Enteric Nervous System

Question 13

All divisions of the ANS contain

Answer 13

both afferent and efferent fibers

Question 14

The ANS innervates the

Answer 14

internal organs (viscera) including the 
blood vessels, stomach, intestine, liver, kidneys, bladder, 
genitals, lungs, pupils, heart, and sweat, salivary, and digestive glands

Question 15

Generally, the motor pathways of the SNS and PNS consist of a two-neuron series:

Answer 15

a “preganglionic neuron” whose cell body (but not its entire structure) lies within the CNS and
a “postganglionic neuron” whose cell body (and, in fact, its entire structure) lies outside the CNS, i.e. in the ganglion and beyond. This postganglionic neuron innervates target tissues.