Mid Sem Flashcards
Brachiocephalicus
O: 1) cranial raphe of neck, 2) temporal bone
I: medial surface of distal shaft of humerus
N: accessory n.
Trapezius
O: 1) raphe of neck, 2) supraspinous ligament
I: dorsal spine of scapula
N: accessory n.
Latissimus dorsi
O: 1) lumbodorsal fasci, 2) last 2-3 ribs
I: teres tuberosity of humerus
N: thoracolumbar n.
Omotransversarius
O: wing of atlas
I: ventral spine of scapula
N: accessory n.
M. Pectoralis profundus
O: first to last sternebrae
I: lesser and greater tubercle of humerus
M. Pectoralis superficialis
O: cranial end of sternum
I: greater tubercle of humerus
M. Serratus ventralis
O: 1) transverse process of last 5 cervical vertebrae, 2) first 7-8 ribs
I: serrated face of scapula
M. Rhomboideus
O: 1) occipital bone, 2) raphe of neck, 3) spinous processes of T4-T6
I: medial surface of dorsal border of scapula
M. Subscapularis
O: subscapular fossa
I: lesser tubercle of humerus
N: subscapular n.
M. Supraspinatus
O: supraspinous fossa
I: greater tubercle of humerus
N: supra scapular n.
M. Infraspinatus
O: infra spinous fossa
I: major tubercle of humerus
N: supra scapular n.
M. Deltoideus
O: 1) scapular spine, 2) acromium
I: deltoid tuberosity
N: axillary n.
M. Teres major
O: caudal angle of scapula
I: teres tuberosity
N: axillary n.
M. Teres minor
O: caudal border of scapula (distally)
I: tuberosity for teres minor
N: axillary nerve
M. Corachobrachialis
O: Coracoid process (long tendon of origin)
I: crest of minor tubercle of humerus
N: musculocutaneous n.
M. Biceps brachii
O: supraglenoid tubercle of scapula
I: 1) ulnar tuberosity, 2) radial tuberosity
N: musculocutaneous n.
M. Tensor fascia antebrachii
O: latissimus dorsi
I: 1) antebrachial fascia, 2) olecranon
N: radial n.
M. Triceps brachii, long head
O: caudal edge of scapula
I: olecranon
N: radial n.
Brachialis
O: brachialis groove
I: radius and ulna
N: musculocutaneous n.
Triceps brachii (medial and lateral heads)
O: shaft of humerus
I: olecranon
N: radial n.
Anconeus
O: distal humerus
I: olecranon
N: radial n.
What are the extensor muscles of the forelimb? Are they on the cranial or caudal side of the limb?
Craniolateral.
Extensor carpi radialis, ext. digitorium communis, ext. digitorium lateralis, ext. carpi ulnaris, supinator, abductor pollicis longus
Extensor carpi radialis
O: lateral epicondyle of humerus
I: metacarpal bones
N: radial n.
Extensor digitorium communis
O: lateral epicondyle of humerus
I: all distal phalanges
N: radial n.
Extensor digitorium lateralis
O: lateral epicondyle of humerus
I: lateral distal phalanges
N: radial n.
Extensor carpi ulnaris
O: lateral epicondyle of humerus
I: accessory carpal bone, metacarpal V
N: radial n.
Supinator
O: lateral epicondyle of humerus
I: radius
N: radial n.