Autonomic nervous system

Question 1

What is the autonomic nervous system?

Answer 1

Part of the peripheral nervous system that controls smooth muscle and glands

Question 2

What is the central control of the autonomic nervous system?

Answer 2

Hypothalamus

Question 3

What body functions does the autonomic system control?

Answer 3

Not under conscious control

Question 4

What does the autonomic nervous system do?

Answer 4

Finely tunes internal environment

Accelerator and brake

Question 5

What is a ganglion?

Answer 5

Collection of cell bodies outside of the central nervous system

Question 6

What would a ganglion be the CNS?

Answer 6

Nuclei

Question 7

What are the target tissues of the autonomic nervous system?

Answer 7

Smooth muscle and glands

Question 8

What can the autonomic nervous system be split into?

Answer 8

Sympathetic and parasympathetic

Question 9

Where does the sympathetic system segment?

Answer 9

Thoracolumbar outflow

T1-L2

Question 10

Where does the parasympathetic system segment?

Answer 10

craniosacral outflow
cranial- 4CNs
sacral- S2-S4

Question 11

Where are the cell bodies in the sympathetic system?

Answer 11

lateral horn of grey matter of spinal cord

Question 12

Where are the cell bodies in the parasympathetic nervous system?

Answer 12

Grey matter of sacral spinal cord and brainstem

Question 13

What does the sympathetic system do?

Answer 13

Fight or flight

Question 14

What does the parasympathetic system do?

Answer 14

Rest and digest

Feed and breed

Question 15

How are ganglia presented in the sympathetic nervous system?

Answer 15

Cervical portion of the sympathetic chain

Superior cervical gangion

Question 16

How does the sympathetic innervation travel in the head and neck?

Answer 16

hitch hikes on Blood vessels

and also distally join CN V branches

Question 17

Which cranial nerves carry parasympathetic fibres from the brain?

Answer 17

Oculomotor
Facial
Glossopharyngeal
Vagus

Question 18

What are the effector tissues of the sympathetic innervation to the head and neck?

Answer 18

Eye
Eye lid
Blood vessels
sweat glands

Question 19

What is the response of sympathetic innervation to the head and neck?

Answer 19

Pupillary dilation
Assists lid retraction
vaso-constriction
sweating

Question 20

What is the origin of the parasympathetic nervous system in the head and neck?

Answer 20

Brainstem

Question 21

How does the parasympathetic nervous system travel in the head and neck?

Answer 21

Cranial nerves III, VII, IX and X

All post ganglionic fibres react the effector organs via branches of V (EXCEPT X)

Question 22

What are the ganglia of the parasympathetic system in the head and neck?

Answer 22

Cilary
Pterygopalatine
Submandibular
Otic

Question 23

What are the effector tissues of the parasympathetic system in the head and neck

Answer 23

Eye

Lacrimal, mucosal, salivary and parotid gland

Question 24

What is the response of the parasympathetic nervous system?

Answer 24

Constrict pupil

Accommodation reflex, glandular sections and cardiac and smooth muscle in respiratory and digestive system

Question 25

What is the innervation of the head and neck like as a whole?

Answer 25

``` rule of 4 From brainstem- 4 nuclei Hitchhike on one of 4 CNs 4 gangle hitchhike brach of CN V target tissue ```