Anatomy of Anaesthesia for labour Flashcards Preview

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Flashcards in Anatomy of Anaesthesia for labour Deck (17)
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1
Q

What transmits pain for the pelvic organs and what transmits pain from the perineum?

A

visceral affertens from the pelvic organs

pudendal nerve from the pernieum

2
Q

Where does the viseral afferent nerve supply come from for the suprior aspect of the pelvic organs?

A

T11-L2

3
Q

Where does the visceral afferent supply for the inferior aspect of the pelvic organs come from?

A

S2,3,4

4
Q

what nerve roots supply the pudendal nerve?

A

S2,3,4

5
Q

How does the pain travel at the (a) superior aspect of a pelvic organ and (b) the inferior aspect?

A

Superior aspect

visceral afferent follows sympathetics to T11 - L2

Inferior aspect

visceral afferent follows parasymapthic to S2,S3,S4

6
Q

what are the 3 types of injectible asathesia in pregancny?

A

Spinal anaesthetic

Epidural anaesthetic

Pudendal nerve block

7
Q

What does the spinal cord become the cauda equina?

A

2 people can fit on a horse

L2

8
Q

Where does the subarchnoid space end?

A

Two people can ride a spider

L2

9
Q

Where do you put in an epidural anaesthetic?

A

L3-L4

10
Q

What layers does a spinal anaesthetic pass through?

A

Supraspinous ligament

Interspinous ligament

Ligamentum flavum

Epidural space

Dura mater

Arachnoid mater

CSF

11
Q

What will happen to the legs after a spinal anaesthetic?

A

loss of symapthic vessle tone = vasodilation

Reduced sweating

Hypotension risk

12
Q

What does the pudendal nerve come from?

A

Branch of the sacral plexus

s2,s3,s4

13
Q

Where does the pudendal nerve travel?

A

greater sciatic foramen

posterior to sacrospinous ligament

pudendal canal (obturator fascia)

14
Q

Where does the pudendal nerve pass in relation to the sacrospinous ligament?

A

nerve crosses the lateral aspect of the sacrospinous ligament

15
Q

What nerve dmg can happen during a prolonged difficult vaginal labour?

A

pudendal nerve can be stretched

week pelvic floor and inconinece

16
Q

What way do you do an episiotomy?

A
17
Q
A