UE Nerves, Arteries, Veins

Question 1

Accessory Nerve (C1-C5)

Answer 1

Trapezius

Sternocleidomastoid

Question 2

Dorsal Scapular Nerve (C4-C6)

Answer 2

Levator scapulae

Rhomboids

Question 3

Long Thoracic Nerve (C5-C7)

Answer 3

Serratus anterior

Question 4

Suprascapular Nerve (C4-C6)

Answer 4

Supraspinatus

Infraspinatus

Question 5

Subclavian Nerve (C5-C6)

Answer 5

Subclavius

Question 6

Lateral Pectoral Nerve (C5-C7)

Answer 6

Pectoralis major

Pectoralis minor

Question 7

Medial Pectoral Nerve (C8-T1)

Answer 7

Pectoralis major

Pectoralis minor

Question 8

Upper Subscapularis Nerve (C5-C6)

Answer 8

Subscapularis

Question 9

Lower Subscapularis Nerve (C5-C6)

Answer 9

Subscapularis

Teres major

Question 10

Thoracodorsal Nerve (C6-C8)

Answer 10

Latissimus dorsi

Question 11

Axillary Nerve (C5-C6)

Answer 11

Deltoids

Teres minor

Question 12

Plexuses form to…and what are the 4 plexuses?

Answer 12

…supply extremities.

1. Cervical plexus (C1-C5)
2. Brachial plexus (C5-T1)
3. Lumbar plexus (L1-4)
4. Sacral plexus

Question 13

Ventral rami in the thoracic area become intercostal nerves and…

Answer 13

DO NOT HAVE PLEXUSES

Question 14

Musculocutaneous Nerve

Answer 14

Lateral cord- innervates anterior compartment of arm

Branches to (3)

1. Coracobrachialis
2. Biceps brachii
3. Brachialis

Question 15

Radial Nerve (C5-T1)

Answer 15

Posterior cord- innervates posterior compartment of arm

Travels posteriorly through Triceps hiatus.

Branches to: (2 in arm)

1. Triceps brachii (medial, lateral, long heads)
2. Anconeus

(11 in forearm)
Brachioradialis
Supinator - turns to posterior interosseous
Extensor carpi radialis longus
Extenso carpi radialis brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi 
Extensor indicis
Extensor pollicis brevis
Extensor pollicis longus
Abductor pollicis longus

Question 16

Scapular notch

Answer 16

Suprascapular nerve

Suprascapular artery

Question 17

Medial border of scapula

Answer 17

Dorsal scapular nerve

Dorsal scapular artery

Question 18

Triangular space of scapula

Answer 18

Circumflex scapular artery

Made up by teres minor, teres major, and long head of triceps brachii

Question 19

Triceps hiatus of scapula

Answer 19

Radial nerve
Profunda brachii artery

Made up by long head of triceps brachii, humerus, and teres major

Question 20

Quadrangular space of scapula

Answer 20

Axillary nerve
Posterior circumflex humeral artery

Made up by teres minor, teres major, long head of triceps brachii, and humerus

Question 21

Axillary Sheath

Answer 21

Surrounds axillary artery, vein, & cords of brachial plexus

Question 22

Origin of blood supply for upper extremity?

Answer 22

Subclavian artery

Question 23

Arterial supply for anterior compartment of the arm?

Answer 23

Brachial artery

Question 24

Arterial supply for posterior compartment of the arm?

Answer 24

Profunda brachii artery

Question 25

Naming cervical (8) spinal nerves

Answer 25

Exit ABOVE corresponding vertebrae (exception C8 exits at C7) ex: C6 nerve = C5-C6

Question 26

Thoracic (12), Lumbar (5), Sacral (5), and Coccygeal (1) spinal nerves

Answer 26

Exit BELOW corresponding vertebrae ex: T7 nerve = T7-T8

Question 27

Motor Axon

Answer 27

Innervation of skeletal muscle

Question 28

Sensory Axon

Answer 28

Proprioception. Impulses from skin.

Question 29

Sympathetic (pre/post)

Answer 29

Innervation of smooth muscle of blood vessel wall. Most nerves have these.

Question 30

Brachial Plexus

Answer 30

``` 5 Roots 3 Trunks 3 Divisions 3 Cords 5 Nerves with an additional 11 branches ```

Question 31

5 Roots of Brachial plexus

Answer 31

C5 (Dorsal Scapular n. and Long Thoracic n.), C6, C7, C8, T1

Question 32

3 Trunks of Brachial Plexus

Answer 32

1. Upper - C5-C6 (Suprascapular n. and subclavian n.) 2. Middle - C7 3. Lower - C8-T1

Question 33

Divisions of Brachial Plexus

Answer 33

3 anterior | 3 posterior

Question 34

3 Cords of Brachial Plexus with Nerves

Answer 34

1. Lateral - Lateral Pectoral Nerve (C5-C7) - Musculocutaneous Nerve (C5-C7) - Median Nerve (C5-C7) 2. Medial - Medial Pectoral Nerve (C8-T1) - Medial Cutaneous Nerves of arm & forearm (C8-T1) - Medial root of Median Nerve (C8-T1) - Ulnar Nerve (C7-T1) 3. Posterior - Upper Subscapular Nerve (C5-C6) - Thoracodorsal Nerve (C5-C6) - Lower Subscapular Nerve (C5-C6) - Axillary Nerve (C5-C6) - Radial Nerve (C5-T1)

Question 35

Median Nerve

Answer 35

Medial root: C8-T1 Lateral root: C5-C7 ``` Muscular branches: Flexor carpi radialis Palmaris longus Flexor digitorum superficialis Pronator teres Flexor pollicis longus Flexor digitorum profundus ``` Pronator quadratus Lateral/radial two lumbricals

Question 36

Ulnar Nerve C7-T1)

Answer 36

The only muscles ulnar nerve innervates in the anterior compartment of the forearm are: Flexor carpi ulnaris Flexor digitorum profundus (ulnar portion) ``` Deep muscular branches: Abductor digiti minimi Flexor pollicis brevis Opponens digiti minimi Palmar interossei Dorsal interossei Medial/ulnar two lumbricals Adductor pollicis muscles ```