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Menstrual disorders and early pregnancy problems > The autonomic nervous system and pelvic viscera > Flashcards

The autonomic nervous system and pelvic viscera Flashcards

1
Q

What is the autonomic nervous system distributed throughout

A

CNS and PNS

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2
Q

What is the autonomic nervous system divided into

A

Sympathetic and parasympathetic

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3
Q

What region is the parasympathetic nervous system associated with

A

Craniosacral region

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4
Q

What regions the sympathetic nervous system associated with

A

Thoracolumbar

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5
Q

What are the PNS neutrons divided into

A

Somatic sensory neurone
Somatic motor neurone
Autonomic motor neurone

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6
Q

What is the efferent pathway of autonomic nervous system

A

Autonomic motor neurone

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7
Q

Where are the preganglionic neurones situated in the autonomic motor neurone

A

Lateral Grey horn of spinal cord

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8
Q

Which cranial nerves contribute to the autonomic motor neurone

A

3,7,9,10

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9
Q

What is the role of the sympathetic division

A

Function to prepare body for an emergency:

  • INcrease HR
  • Redistribution of blood
  • Increase BP
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10
Q

Where does the efferent outflow of the sympathetic division come from

A

Spinal cord, sympathetic trunk, branches, plexuses and ganglia

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11
Q

Where do preganglia that innervate head, thoracic viscera (foregut) come from

A

T1-T6

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12
Q

Where do preganglia that innervate abdominal viscera (midgut) come from

A

T7-T11

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13
Q

Where do preganglia that innervate pelvic viscera (hindgut) come from

A

T12-L2(3)

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14
Q

What is the course of preganglia

A

Come from lateral grey horn of spinal cord

Go to paravertebral ganglia of sympathetic trunk

Once reached, can do one of 4 things:

  • Synapse at entry level
  • Ascend and then synapse
  • Descend and then synapse
  • No synapse, form splanchnic nerves
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15
Q

How many ganglia are in the neck

A

3

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16
Q

How many ganglia are in the abdomen

A

4/5

17
Q

How many ganglia are in the thorax

A

11/12

18
Q

How many ganglia are in the pelvis

A

4/5

19
Q

Where do the greater splanchnic nerves originate from

A

T5-T9

20
Q

Where do the lesser splanchnic nerves originate from

A

T10-T11

21
Q

Where do the least splanchnic nerves originate from

A

T12

22
Q

where do the splanchnic nerves originate from

A

Thoracic sympathetic trunk

23
Q

Where do the splanchnic nerves synapse

A

IN the abdominal region with the prevertebral ganglia

24
Q

Where are the nerve cells of the parasympathetic nervous system located

A

Brainstem and sacral segments of the spinal cord

25
Q

What are the cranial nerves 3,7,9,10 associated with

A

3-oculomotor
7-facial
9-Glossopharyngeal
10-vagus

26
Q

What sacral segments of spinal cord do parasympathetic fibres come from

A

S2,S3,S4 (innervate pelvic region)

27
Q

Role of sympathetic NS in digestion

A

Inhibits peristalsis
Constricts blood vessels to tract so blood available for skeletal muscles
Contracts internal anal sphincter

28
Q

Role of sympathetic NS in urinary tract

A

Vasoconstriction of renal vessels

Contraction of internal sphincter of bladder

29
Q

Role of sympathetic NS in genital tract

A

Ejaculation and vasoconstriction leading to remission of erection

30
Q

Role of parasympathetic NS in digestive tract

A

Stimulates peristalsis and secretions of digestive juices
Contracts rectum
Inhibits internal anal sphincter

31
Q

Role of parasympathetic nS in urinary tract

A

Inhibits contraction of bladder internal sphincter

Contract detrusor muscle of bladder wall (urination)

32
Q

Role of parasympathetic NS in genital tract

A

Erection of erectile tissue of external genitals

33
Q

What is the enteric nervous system and what is it split into

A

Extends around GI tract

Submucosal plexus (controls glandular secretion of mucosa)

Myenteric plexus )controls peristalsis)

34
Q

What is Hirschsprung’s disease and symptoms

A

Absense of enteric neurone from variable lengths pf the distal gut

Intestinal obstruction or severe constipation

Menstrual disorders and early pregnancy problems (6 decks)

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