Canine Thoracic Limb -> Neurology

Question 1

what locations of vertebrae of ventral branches of cervical and thoracic spinal nerves form the brachial plexus?

Answer 1

C6-T2

Question 2

where do nerves of the brachial plexus emerge from between vertebrae?

Answer 2

intervertebral foramina

Question 3

what muscles does the pectoral n. of the brachial plexus innervate?

Answer 3

pectoral muscles

Question 4

what muscles does the suprascapulard n. of the brachial plexus innervate?

Answer 4

supraspinatus m.
infraspinatus

Question 5

what muscles does the subscapular n. of the brachial plexus innervate?

Answer 5

subscapularis m.

Question 6

what muscles does the axillary n. of the brachial plexus innervate?

Answer 6

deltoides m.
teres major m.
teres minor m.

Question 7

what muscles does the thoracodorsal n. of the brachial plexus innervate?

Answer 7

latissimus dorsi m.

Question 8

what muscles does the lateral thoracic n. of the brachial plexus innervate?

Answer 8

cutaneous trunci m. (to ventrolateral abdominal wall)

Question 9

what muscles does the long thoracic n. of the brachial plexus innervate?

Answer 9

serratus ventralis m.

Question 10

what muscles does the musculocutaneous n. of the brachial plexus innervate?

Answer 10

coracobrachialis m.
biceps brachii m.
brachialis m.

Question 11

what branches does the musculocutaneous n. of the brachial plexus spit into?

Answer 11

median n.
medial cutaneous antebrachial n. (innervates medial skin of antebrachium)

Question 12

what muscles does the median n. of the brachial plexus innervate?

Answer 12

protonator teres m.
flexor carpi radials m.
protonator quadratus m.
superficial digital flexor m.
deep digital flexor m.

Question 13

what skin does the median n. of the brachial plexus innervate?

Answer 13

skin of caudal antebrachium and palmar paw

Question 14

what muscles does the ulnar n. of the brachial plexus innervate?

Answer 14

flexor carpi ulnaris m.
deep digital flexor m.
interosseous m.

Question 15

what is the branch of the ulnar nerve that innervates the skin of the caudal antebrachium, palmar pad, and lateral metacarpus & digits?

Answer 15

caudal cutaneous antebrachial n.

Question 16

what muscles of elbow extension does the radial n. of the brachial plexus innervate?

Answer 16

triceps brachii m.
tensor fascia antebrachium m.
aconeous m.

Question 17

what muscles of carpus & digit extension does the radial n. of the brachial plexus innervate?

Answer 17

extensor carpi radialis m.
supinator m.
common digital extensor m.
lateral digital extensor m.
ulnaris lateralis m.
abductor pollicis longus m.

Question 18

the lateral & medial superficial branches of the radial nerve are sensory to what parts of the skin?

Answer 18

cranial & lateral antebrachium
dorsal paw