Organization of the Nervous System

Question 1

What are the divisions of the autonomic nervous system?

Answer 1

Sympathetic, parasympathetic

Question 2

Where are the preganglionic cell bodies of the sympathetic nervous system?

Answer 2

Intermediolateral horn of the spinal cord from T1 to L3

Question 3

Where are the preganglionic cell bodies of the parasympathetic nervous system located?

Answer 3

Brainstem (cranial nerve nuclei) and spinal cord from S2 to S4

Question 4

Which is the primary neurotransmitter (NT) of both sympathetic and parasympathetic ganglia?

Answer 4

Acetylcholine (ACh)

Question 5

Which is the primary type of cholinergic receptor of both sympathetic and parasympathetic ganglia?

Answer 5

Nicotinic

Question 6

Which NT mediates the transmission of impulses from sympathetic neurons to effector organs?

Answer 6

Norepinephrine (NE)

Question 7

Which NT mediates the transmission of impulses from parasympathetic neurons to effector organs?

Answer 7

ACh

Question 8

Which NT mediates the transmission of impulses from somatic neurons to skeletal muscle?

Answer 8

ACh

Question 9

What types of receptors are present on the effector organs innervated by the sympathetic nervous system?

Answer 9

α1, α2, β1, and β2

Question 10

What type of receptor is present on the effector organs innervated by the parasympathetic nervous system?

Answer 10

Muscarinic

Question 11

What type of receptor is present on muscle innervated by the somatic nervous system?

Answer 11

Nicotinic