CERVICAL and BRACHIAL PLEXUSES

Question 1

Brachial plexus roots arise from

Answer 1

ventral rami from C5 to T1

Question 2

Parts of the Brachial Plexus

RTDCB

Answer 2

Roots Trunks Divisions Cords Branches

Question 3

Roots are

Answer 3

C5-T1

Question 4

Trunks are

Answer 4

Superior
Medial
Inferior

Question 5

Divisions are

Answer 5

6 divisions

Question 6

Cords are

Answer 6

Lateral, Posterior and medial according to relationship with Axillary artery

Question 7

The cords divide into terminal branches that supply

Answer 7

all motor and sensory innervations of the upper extremities

Question 8

The cords divide into terminal branches that supply all motor and sensory innervations of the upper extremities
EXCEPT

Answer 8

Skin over the shoulder (Cervical plexus)

Medial aspect of the arm (Supplied by intercostobrachial branch of the 2nd intercostal nerve)

Question 9

What plexus cover skin over the shoulder?

Answer 9

Cervical plexus

Question 10

What nerve branch cover medial aspect of the arm?

Answer 10

Intercostobrachial branch of the 2nd intercostal nerve.

Question 11

Brachial plexus PNB nerve involve

Answer 11

Interscalene
Supraclavicular
Infraclavicular
Axillary

Question 12

2 nerves to cover for elbow

Answer 12

Infraclavicular

Axillary

Question 13

Cervical plexus blocks provide

Answer 13

analgesia and anesthesia to the neck

Question 14

Some surgeries for cervical plexus block

Answer 14

Neck surgeries

Carotid endarterectomy

Question 15

Cervical plexus is composed of the rami of

Answer 15

C1 to C4 forming the five main branches

Question 16

What are the 5 branches of the cervical plexus blocK?

Answer 16

Cutaneous branches
Ansa Cervical is
Phrenic Nerve
Components of the accessory nerve
Direct muscular branches innervate the prevertebral muscles of the neck

Question 17

What precautions must be taken for patients with carotid endarterectomy ?

Answer 17

The head should not be extended excessively or turned aggressively to prevent cerebral ischemia or embolic stroke from a dislodged clot.

Question 18

The cutaneous branches supply the

Answer 18

Lesser occipital
Greater auricular
Transverse Cervical
Supraclavicular nerve

Question 19

The Ansa cervicalis supplies the

Answer 19

Geniohyoid and Infrahyoid muscles

Question 20

The phrenic nerve innervates the

Answer 20

Diaphragm

Question 21

Direct muscular branches innervate the

Answer 21

Prevertebral muscles of the neck

Question 22

Accessory nerves innervate

Answer 22

Sternocleidomastoid

Trapezius muscles

Question 23

Superficial Cervical plexus block process

Answer 23

Posterior border of SCM identified and outlined
A line is drawn between the mastoid process and the clavicular head of the SCM
The Midpoint of the line is the injection site.
Needle is inserted PERPENDICULAR to the skin
Block starts within 10-15 mns

Question 24

Deep cervical Plexus block : what needs to be identified first?

Answer 24

Transverse process of C6 (Chassaignac’s Tubercle)

Question 25

Where is the Chassaignac's Tubercle palplable?

Answer 25

at the level of the cricoid cartilage.

Question 26

Intercostobrachial nerve arises from

Answer 26

T2

Question 27

Intercostobrachial nerve: Block that blocks this nerve

Answer 27

Field Block

Question 28

Sensory test for Axillary nerve

Answer 28

Pinch lateral aspect of shoulder

Question 29

Motor test for Axillary nerve

Answer 29

Arm abduction (deltoid contraction)

Question 30

Sensory test for Musculocutaneous nerve

Answer 30

Pinch lateral aspect of forearm

Question 31

Motor test for Musculocutaneous nerve?

Answer 31

Elbow Flexion (biceps contraction)

Question 32

Motor test for median nerve

Answer 32

Thumb Opposition

Question 33

Sensory test for Median Nerve

Answer 33

Pinch index finger

Question 34

Sensory test for Radial nerve

Answer 34

Pinch webspace between thumb and index finger

Question 35

Motor test for Radial Nerve

Answer 35

``` Elbow extension ( tricepts contraction) Wrist and finger extension ```

Question 36

Sensory test for Ulnar nerve

Answer 36

Pinch pinky finger

Question 37

Motor test for Ulnar nerve

Answer 37

Pinky finger abduction