Cervical and brachial plexus Flashcards Preview

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Flashcards in Cervical and brachial plexus Deck (51)
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1
Q

what nerves makeuo the cervical plexus

A

C1-C5

2
Q

where is the phrenic nerve situated

A

C3-C5

C4 - 70%

3
Q

what nerves make up the Brachial plexus

A

C5-T1

4
Q

Label

A
5
Q

interscalene is for what sx

A

Shoulder

6
Q

major complications with Supra and Infraclavicualr

A

Pneumothorax

7
Q

what block is most frequently used for lower arm / hand

A

Axillary

8
Q

Brachial Pleaxus:

what are all the divsions

A

Roots

trunks

Divisions

Cords

Branches (terminal)

Randy Travis Drinks Cold Beer

9
Q

label the divisions and all else blank

A
10
Q

another picture

A
11
Q

name the roots

A

C4

C5

C6

C7

C8

T1

12
Q

Name the trunks

A

Superior

Middle

Inferior

13
Q

name the divisions

A

3 ventral

3 dorsal

14
Q

Name the cords

A

Lateral

medial

Posterior

15
Q

name the branches (terminal)

A

rememebr MARMU

Musculocutaneous

Axillary

Radial

Median

Ulnar

16
Q

picture of all that

(notice the Dorsal divisions all sit on the posterior cords)

A
17
Q

another picture

A
18
Q

Label

A
19
Q

lable this

A
20
Q

Ultrasound:

what is the greatest advantage of US guided regional anesthestic

A

ability to see where the tip of the needle is in relation to anatomical structures

and see the spread of LA

21
Q

Ultrasound:

can allow the provider to use less what

A

LA

22
Q

Ultrasound:

can (increase or decrease) complications?

A

decrease

23
Q

Ultrasound:

what freq penetrate deeper? Low or high

A

Low

(like a long distance runner slow and goes further)

24
Q

Ultrasound:

what type of freq US probes are good for visualizing shallow lying structures less than 4 cm from the skin

A

High

25
Q

Ultrasound:

what is the freq of high freq US probes

A

10-13 mHz

26
Q

Ultrasound:

what freq US prob is good for visualizig deep structures

A

Low

27
Q

Ultrasound:

what is the freq of Low freq US probes

A

2-5 MHz

28
Q

Ultrasound:

if sound passess through it’s called ______ and appears ______ on US machine? give ex of a structure

A

Anechoic (no echo)

appears black

liquid (LA)

29
Q

Ultrasound:

if sound is almost entirely reflected it’s called ______ and appears ______ on US machine? give ex of a structure

A

Hyperechoic

bright white

Bone

30
Q

Ultrasound:

if sound is modestly reflectly it’s called ______ and appears ______ on US machine?

A

Hypoechoic

gray

31
Q

Ultrasound:

how do you differentiate an artery from a vein

A

Atreries pulsate and are NOT compressible

Veins are compressible

32
Q

Ultrasound:

what approach affords full visualization of needle tip and shaft?

A

In-plane

33
Q

Ultrasound:

what approach shows only the tip of the needle, no visualization of needle en route

A

out of plane

34
Q

Label

Pronated Dermatomes

A
  1. C8
  2. C7
  3. C6
  4. C5
  5. T1
  6. C8
35
Q

LABEL

SUPINATED DERMATOMES

A
  1. C7
  2. C6
  3. C5
  4. T1
  5. C8
36
Q

label the nerve in the UE pronated

A

A) median

B) Ulnar

C) Radial

D) median antebrachial cutaneous

E) Musculocutaneous

F) axillary

G) Supraclavicular

H) Intercostobrachial

37
Q

Label the nerve in the UE Supinated

A

A) median

B) Ulnar

C) Radial

D) median antebrachial cutaneous

E) Musculocutaneous

F) axillary

G) Supraclavicular

H) Intercostobrachial

38
Q

what nerve

A

Median

39
Q

what nerve

A

ulnar

40
Q

what nerve

A

radial

41
Q

Characteristics of movement of fingers, wrist, and elbow in response to stimulation:

What uis unique about the radial nerve

A

only one with extension

Causes extension of elbow

42
Q

which nerve causes this with stimulation:

Supination of forearm

A

Radial

43
Q

which nerve causes this with stimulation:

pronation of forearm

A

Median

44
Q

which nerve causes this with stimulation:

flexion of wrist

A

ulnar

and

median

45
Q

which nerve causes this with stimulation:

flexion of elbow

A

musculocutaneous

46
Q

which nerve causes this with stimulation:

extension of wrist and fingers

A

radial

Again only one that causes extension

47
Q

what type of block is a good adjunct to shoulder surgery (not interscalene)

A

Cervical plexus block

48
Q

just a fact to remember.

A

Both cervical plexus and intercostal blocks have multiple injection sites or levels

49
Q

what is a complication of cervical plexus block

A

Horner’s syndrome

50
Q

S/S of horner’s sysndrome

A

ipsilateral ptosis

miosis

facial and arm flushing

anhydrosis

nasal congestion

51
Q

cervical plexus block:

inject __ to __ mLs of LA per level you wish to block

A

3-5 mL

Remember 4 mL (C1-C4)

Cervical plexus only consist of C1-C4

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