Thoracic limb Flashcards
Stabilizers of the shoulder (3)
- supraspinatus
- infraspinatus
3 subscapularis
What is the innervation of the stabilizers of the shoulder? (2)
- subscapular nerve
- suprascapular nerve
What is the arterial supply of the stabilizers of the shoulder? (1)
- superficial cervical artery
Extensors of the elbow (3)
- triceps brachii
- anconeus
- tensor fascia antebrachii
What are the attachments of the anconeus?
the lateral supracondylar crest and epicondyle of the humerus TO the olecranon
What are the attachments of the tensor fascia antebrachii?
the lateral fascia of the latissimus dorsi and the olecranon
What is the innervation of the extensors of the elbow? (1)
radial nerve
What is the bloody supply to the extensors of the elbow? (2)
- deep brachial artery
- collateral ulnar artery
What are the attachments of the medial head of the triceps?
the tuber olecrani and the crest of the lesser tubercle
What are the flexors of the elbow?
- biceps brachii
- brachialis
- coracobrachialis
What are the attachments of the biceps brachii?
supraglenoid tubercle of the scapula and proximal radius and ulna, in comination with the tendon of the brachialis muscle
What are the attachments of the brachialis?
proximal humerus and the medial aspect of the proximal radius and ulna
What are the attachments of the coracobrachialis?
coracoid process of the scapula, the lesser tubercle of the humerus AND the teres major tuberosity of the humerus
Name this cat specific muscle that originates on the humerus and inserts on the radius that also flexes the elbow?
the brachioradialis
What are the extensors of the carpus and digits? (6)
- Extensor carpi radialis
- common digital extensor
- lateral digital extensor
- ulnaris lateralis*
- Supinator *
- abductor pollicus longus*
What are the attachments of the extensor carpi radialis?
the lateral epicondyle of the humerus and metacarpal bones II and III
What are the attachments of the common digital extensor?
the lateral epicondyle of the humerus and distal phalanges II-V (all weight bearing)
Lateral digital extensor attachments
lateral epicondyle of the humerus and the distal phalanges III-V
Ulnaris lateralis attachments
Lateral epicondyle of the humerus and metacapal bone V and accessory carpal bone
Supinator
lateral epicondyle of the humerus and radius
What is the blood supply to the extensors of the carpus and digits? (2)
the common interosseus artery and the cranial interosseus artery
What is the innervation of the extensors of the carpus and digits?
the radial nerve
What are the flexors of the carpus and digits? (5)
- deep digital flexor tendon
- superficial digital flexor tendon
- flexor carpi radialis
- flexor carpi ulnaris
- pronator teres
What are the attachments of the deep digital flexor?
The medial epicondyle of the humerus, the caudal border of the ulna, the medial border of the radius and distal phalanx of ALL five digits
