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Head And Neck > Autonomic nervous system > Flashcards

Autonomic nervous system Flashcards

1
Q

What is the autonomic nervous system?

A

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

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2
Q

What is the central control of the autonomic nervous system?

A

Hypothalamus

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3
Q

What body functions does the autonomic system control?

A

Not under conscious control

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4
Q

What does the autonomic nervous system do?

A

Finely tunes internal environment

Accelerator and brake

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5
Q

What is a ganglion?

A

Collection of cell bodies outside of the central nervous system

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6
Q

What would a ganglion be the CNS?

A

Nuclei

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7
Q

What are the target tissues of the autonomic nervous system?

A

Smooth muscle and glands

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8
Q

What can the autonomic nervous system be split into?

A

Sympathetic and parasympathetic

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9
Q

Where does the sympathetic system segment?

A

Thoracolumbar outflow

T1-L2

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10
Q

Where does the parasympathetic system segment?

A

craniosacral outflow
cranial- 4CNs
sacral- S2-S4

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11
Q

Where are the cell bodies in the sympathetic system?

A

lateral horn of grey matter of spinal cord

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12
Q

Where are the cell bodies in the parasympathetic nervous system?

A

Grey matter of sacral spinal cord and brainstem

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13
Q

What does the sympathetic system do?

A

Fight or flight

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14
Q

What does the parasympathetic system do?

A

Rest and digest

Feed and breed

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15
Q

How are ganglia presented in the sympathetic nervous system?

A

Cervical portion of the sympathetic chain

Superior cervical gangion

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16
Q

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

A

hitch hikes on Blood vessels

and also distally join CN V branches

17
Q

Which cranial nerves carry parasympathetic fibres from the brain?

A

Oculomotor
Facial
Glossopharyngeal
Vagus

18
Q

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

A

Eye
Eye lid
Blood vessels
sweat glands

19
Q

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

A

Pupillary dilation
Assists lid retraction
vaso-constriction
sweating

20
Q

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

A

Brainstem

21
Q

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

A

Cranial nerves III, VII, IX and X

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

22
Q

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

A

Cilary
Pterygopalatine
Submandibular
Otic

23
Q

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

A

Eye

Lacrimal, mucosal, salivary and parotid gland

24
Q

What is the response of the parasympathetic nervous system?

A

Constrict pupil

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

25
Q

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

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

Head And Neck (18 decks)

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