Autonomic Nervous System

Question 1

The autonomic nervous system (ANS) is primarily an _____ system controlling smooth muscle, cardiac muscle and glands, and is best described as the “Visceral Motor System.”

Answer 1

EFFECTOR

Question 2

Autonomic nervous system contains 3 division:

Answer 2

• Sympathetic Division -Parasympathetic Division

- Enteric Division

Question 3

Autonomic nervous system OUTPUT requires a _____ chain.

Answer 3

2 neuron

Question 4

Preganglionic neuron are finely _____; synapses with many _____ neurons (divergence); inhibitory interneurons present in _____; cell bodies are located in _____.

Answer 4

• Myelinated
• postganglionic
• ganglion
• CNS

Question 5

Postganglionic
neuron are _____; goes to
the _____; cell bodies are located in _____
May be excitatory or inhibitory

Answer 5

• unmyelinated
• effector
• ANS ganglia

Question 6

SYMPATHETIC DIVISION is known as the _____ OR _____ division.

Answer 6

• “Flight or fight” division

- Thoracolumbar division

Question 7

Preganaglionic neurons for the Sympathetic division is located where?

Answer 7

Spinal cord segments

T1 - L2/3

Question 8

Preganaglionics of the Sympathetic division’s cell bodies are located in?

Answer 8

Nuclei in intermediate

gray (Intermediolateral cell column)

Question 9

85% of serotonin is made in the _____ division.

Answer 9

Enteric

Question 10

Preganglionic neurons are classified as __ -Fibers

Answer 10

B-fibers

Question 11

The ganglia of the Postganglionic of the Sympathetic division is called?

Answer 11

Paravertebral/ prevertebral (Sympathetic chain/trunk)

Question 12

Sympathetic division is responsible for what function in general?

Answer 12

Regulating Homeostasis

Question 13

Postganglionic Sympathetics will extend to which two cavities?

Answer 13

Abdominal and pelvic cavities

Question 14

_____ Sympathetics are usually named by major blood vessels.

Answer 14

Postganglionic

Question 15

Which chain has:

• Paired chain of ganglia
• Extend length of spine

Answer 15

Sympathetic chain

Question 16

What are the REGIONS of the sympathetic chain? (4)

Answer 16

• Cervical
• Thoracic
• Lumbar
• Sacral

Question 17

Sympathetic chain will terminate as _____.

Answer 17

Ganglion impar (At the very end of the cord by the cocyx, pair coming together)

Question 18

Preganglionic neurons
enter chain and may: -Synapse \_\_\_\_\_
-\_\_\_\_\_, then synapse 
-\_\_\_\_\_, then synapse 
-Pass through chain and synapse in \_\_\_\_\_ ganglia

Answer 18

• At that level
• Ascend
• Descend
• Prevertebral ganglia

Question 19

Preganglionic Sympathetics are ONLY found in what cord segments?

Answer 19

T1-L3

Question 20

_____ neuron cell bodies are in the chain.

Answer 20

Postganglionic sympathetics

Question 21

_____ are synapsing on the sympathetic chain.

Answer 21

Preganglionics

Question 22

Preganglionic sympathetics starts in the _____ cell column. (Before this is just nerve root)

Answer 22

Anterolateral cell column

Question 23

Postganglionic sympathetic neurons will exit the chain in _____ ramus.

Answer 23

Gray

Question 24

_____ sympathetic neurons will exit the chain as specific nerve

Answer 24

Postganglionic

Question 25

Postganglionic sympathetic neurons leaves in a _____ ganglion.

Answer 25

Prevertebral

Question 26

_____ ramus cummunicans are present in all cord segment. While _____ ramus cummunicans are only present in _____.

Answer 26

- White ramus - Gray ramus - T1-L3

Question 27

White ramus communicans creates the _____ and is for getting in the chain.

Answer 27

White ramus

Question 28

_____ ramus is created by postanglionics which goes posterior to innervate glands, and smooth muscles.

Answer 28

Gray

Question 29

Every strip of our body has _____ which is created by the gray ramus.

Answer 29

postganglionics

Question 30

Sympathetic chain sends innervation to the effectors in the _____, _____ and _____ effectors

Answer 30

Head, thoracic cavity and peripheral effectors

Question 31

Innervations to effectors in the thoracic cavity (heart) starts where? Level?

Answer 31

Intermediolateral cell column T1-T4/T5 comes out, and forms the Cardiac nerve.

Question 32

Preganglionics comes out from the _____ root to get into the spinal nerve then swing out into the _____ ramus and get into the chain

Answer 32

Ventral; white

Question 33

Innervations to effectors in the head will require preganglionics to ride up the chain. T/F?

Answer 33

True

Question 34

Damage to sympathetic chain will cause what syndrome?

Answer 34

Horner's syndrome

Question 35

What are the 3 symptoms of Horner's syndrome?

Answer 35

- Miosis (Constriction of pupil) - Ptosis (Drooping of eyelid) - Anhydrosis (No sweat)