Brachial Plexus

Question 0

What does the dorsal scapular nerve innervate?

Answer 0

1. Levator scapulae
2. Rhomboid minor
3. Rhomboid major

Question 1

Direct branches from anterior rami of brachial plexus?

Answer 1

1. Dorsal scapular nerve
2. Suprascapular nerve
3. Nerve to subclavius
4. Long thoracic nerve

Question 2

What does the suprascapular nerve innervate?

Answer 2

1. Supraspinatus

2. Infrapinatus

Question 3

What does the nerve to subclavius innervate?

Answer 3

1. Subclavius muscle

Question 4

What does the long thoracic nerve innervate?

Answer 4

1. Serratus anterior

C5, C6, C7

Question 5

Where are the roots of the brachial plexus found?

Answer 5

Emerge between anterior and middle scalene (interscelene groove)

Question 6

Where are the trunks of the brachial plexus found?

Answer 6

In the posterior triangle of the neck

Question 7

Where are the divisions of the brachial plexus found?

Answer 7

Behind the clavicle

Question 8

Where are the cords of the brachial found?

Answer 8

In axilla

Question 9

What are the 5 terminal nerves of tech brachial plexus ?

Answer 9

1. Musculocutaneous
2. Median
3. Ulnar
4. Radial
5. Axillary

Question 10

What nerves does the lateral cord give rise to?

Answer 10

1. Lateral pectoral
2. Musculocutaneous
3. Median nerve (lateral root)

Question 11

What does the median cord give rise to?

Answer 11

1. Median nerve - median root
2. Medial pectoral
3. Medial ante brachial cutaneous
4. Medial brachial cutaneous
5. Ulnar nerve

Question 12

What does the posterior cord give rise to ?

Answer 12

1. Upper subscapular nerve
2. Thoracodorsal nerve
3. Lower subscapular nerve
4. Axillary nerve
5. Radial nerve

Question 13

What branches form from the roots of the brachial plexus?

Answer 13

1. Dorsal scapular nerve (C5)

2. Long thoracic nerve (C5 - C7)

Question 14

What does the long thoracic nerve innervate?

Answer 14

Serratus anterior

Question 15

Occasions in which the long thoracic nerve is damaged ?

Answer 15

1. Radical mastectomy

2. Thoracic surgery

Question 16

What are the branches from the upper trunk of the brachial plexus?

Answer 16

1. Suprascapular nerve

2. Nerve to subclavius

Question 17

Is the suprascapular nerve above or below the superior transverse scapular ligament?

Answer 17

Below

Question 18

What does the suprascapular nerve innervate?

Answer 18

1. Supraspinatus
2. Shoulder joint
3. Infraspinatus

Question 19

What does the lateral pectoral nerve innervate?

Answer 19

1. Pectoralis minor

2. Pectoralis major

Question 20

What does the musculocutaneous innervate?

Answer 20

1. Coracobrachialis
2. Biceps brachi
3. Brachialis

Question 21

What does the medial pectoral nerve innervate?

Answer 21

1. Pectoralis minor

2. Pectoralis major

Question 22

What does the medial brachial cutaneous nerve innervate?

Answer 22

Skin on the medial side of the arm

Question 23

What does the medial ante brachial cutaneous nerve innervate?

Answer 23

Skin on medial side of forearm

Question 24

Ulnar nerve roots

Answer 24

C8, C7 and T1

Question 25

Musculocutaneous nerve roots

Answer 25

C5-7

Question 26

Axillary nerve roots

Answer 26

C5 and C6

Lies at first behind axillary artery and in front of Subscapularis and passes downward to the lower border of muscle

Question 27

Radial nerve roots

Answer 27

C5, C6, C7, C8 and T1

Question 28

Median nerve roots

Answer 28

C5,C6,C7 (lateral cord) and C8 and T1

Question 29

The dorsal cutaneous branch of ulnar nerve

Answer 29

1. Ulnar half of dorsum of the hand

2. Medial 2 1/2 Fingers (3rd,4th and 5th fingers) as far as the DIPJ