Organization of the Nervous System Flashcards Preview

Neuroscience Deja Review USMLE 1 > Organization of the Nervous System > Flashcards

Flashcards in Organization of the Nervous System Deck (11):
1

What are the divisions of the autonomic nervous system?

Sympathetic, parasympathetic

2

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

Intermediolateral horn of the spinal cord from T1 to L3

3

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

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

4

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

Acetylcholine (ACh)

5

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

Nicotinic

6

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

Norepinephrine (NE)

7

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

ACh

8

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

ACh

9

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

α1, α2, β1, and β2

10

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

Muscarinic

11

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

Nicotinic