Forelimb vessels & nerves Flashcards
What branch of the axillary artery passes between the subscapularis and the teres major?
subscapular artery:
- 2 principal branches:
1. Thoracodorsal artery
2. Caudal circumflex humeral artery
What branch of the subscapular artery supplies the latissimus dorsi & teres major?
Thoracodorsal artery
What artery is the caudal circumflex humeral artery a branch of?
Subscapular artery
What branch of the brachial artery supplies the deep digital flexor & flexor carpi ulnaris?
Recurrent ulnar artery
What spinal nerves contribute to the brachial plexus?
Nerves of the neck & trunk
What nerve innervates the infraspinatus and supraspinatus?
Suprascapular nerve:
Primarily arises from 6th cervical vertebrae
What nerve innervates the subscapularis?
Subscapular nerve
- Arises from 6th & 7th cervical vertebrae
What nerve innervates the latissimus dorsi?
Thoracodorsal nerve
What nerve innervates the flexors of the elbow?
Musculocutaneous nerve
- Connects median nerve, just proximal from elbow
Which nerve innervates the flexors of the shoulder?
Axillary nerve
i. Supplies lateral side of the arm
ii. Arises from 7th & 8th cervical vertebrae
Which nerve is responsible for the panniculus response?
Lateral thoracic nerve
- Helps localized spinal cord damage
Which nerve innervates the extensors of the elbow?
Radial nerve
i. The largest nerve of the brachial plexus
ii. Primary nerve for support of forelimb
iii. Provides sensory nerves
iv. Deep branch: Motor
v. Superficial branch: sensory
Which nerve innervates the extensor of the carpus?
Radial nerve
- Which nerve innervates the extensors of the digits?
a. Ulnar nerve
i. Sensory to caudal forearm & palmar surface of the paw
ii. A major branch of the caudal cutaneous antebrachial nerve
- Which nerve is the primary nerve of support for the forelimb?
Radial nerve
