Comparative Anatomy 2

Front 1

Which are the extrinsic mucles?

Back 1

Superficial:
M. trapezius
M. Omotransversus
M. Latissimus dorsi
Mm. Pectorales superficiales
Deep:
M. Pectoralis profundus
M. Subclavius
M. Rhomboiseus
M. Serratus ventralis

Front 2

Which are the intrinsic muscles of the shoulder joint?

Back 2

Lateral:
M. Supraspinatus
M. Infraspinatus
M. Deltoideus
M. Teres minor
Medial:
M. Teres major
M. Subscapularis
M. Coracobrachialis

Front 3

Which are the intrinsic muscles of the elbow joint?

Back 3

M. Brachialis
M. Biceps brachii
M. Triceps brachii
M. Tensor faciae antebrachi
M. Anconeus

Front 4

Which are the intrinsic muscles of the radioulnar joint?

Back 4

Supinators:
M. Brachioradialis
M. Supinator
Pronators:
M. Pronator teres
M. Pronator quadratus (car.)

Front 5

Which are the intrinsic muscles of the carpal joint?

Back 5

Extensors:
M. Extensor carpi radialis
M. Extensor carpi ulnaris
Flexors:
M. Flexor carpi radialis
M. Flexor carpi ulnaris

Front 6

Which are the intrinsic muscles of the digits?

Back 6

Extensors:
M. Extensor digitorum lateralis
M. Extensor digitorum communis
Flexors:
M. Flexor digitorum superficialis
M. Flexor digitorum profundus

Front 7

M. trapezius: Origin, insertion, innervation, function

Back 7

O: Lig. nuchae, Lig. supraspinalis
Ins: Spinae scapulae
Inn:
F:Abducts and draws limb forward

Front 8

M. Omotransversus: Origin, insertion, innervation, function

Back 8

O: wing of atlas, transvers process of axis
Ins: spinae scapulae
Inn:
F: draws neck down and to side, draws scapula forward

Front 9

M. Latissimus dorsi: Origin, insertion, innervation, function

Back 9

O: Thoracolumbar fascia
Ins: tuberositas teres major
Inn:
F: draws limb back, antagonist to M. braciocephalicus

Front 10

Mm. pectorales superficiales: mucles

Back 10

M. pectoralis transversus
M. pectoralis descendens

Front 11

M. pectoralis descendens: Origin, insertion, innervation, function

Back 11

O: Manubrium sterni
Ins: humeral crest
Inn:
F: draws limb back and forth, draws trunk sideways

Front 12

M. pectoralis transversus: Origin, insertion, innervation, function

Back 12

O: sternum, 1-6 rib cartilage
Ins: lower arm fascia
Inn:
F: draws limb back and forth, draws trunk sideways

Front 13

M. pectoralis profundus: Origin, insertion, innervation, function

Back 13

O: sternum, 4 rib cartilage
Ins: tuberculum minor
Inn:
F: draws limb back and forth, draws trunk sideways

Front 14

M. subclavius: Origin, insertion, innervation, function

Back 14

O: 1-4 rib cartilage
Ins: epimysium of m. supraspinatus
Inn:
F: fixes scapula

Front 15

M. Rhomoideus: Origin, insertion, innervation, function

Back 15

O: Lig. nuchae
Ins: medial surface of scapula, scapular cartilage
Inn:
F: Draws limb forward, elevates limb

Front 16

M. Serratus ventralis: Origin, insertion, innervation, function

Back 16

O: 1-7 rib, transverse process od c. vertebra
Ins: surface of serrate muscle
Inn:
F: Supports trunk

Front 17

M. serratus dorsalis: parts, origin, insertion, innervation, function

Back 17

P:
O:
Ins:
Inn:
F:

Front 18

M. supraspinatus: Origin, insertion, innervation, function

Back 18

O: Fossa supraspinata
Ins: tuberculum major et minor
Inn:
F: extensor of shoulder joint

Front 19

M. infraspinatus: Origin, insertion, innervation, function

Back 19

O: Fossa infraspinata
Ins: proximal on humerus
Inn:
F: Flexor of shoulder joint, also functions as collateral ligament!

Front 20

M. Deltoideus: Parts, origin, insertion, innervation, function

Back 20

Parts: pars scapularis, pars acromialis (muscle only div. in dog)
O: spina scapula, caudal border of scapula
Ins: deltoid tuberosity
Inn:
F: flexes shoulder joint, abducts limb

Front 21

M. Teres minor: Origin, insertion, innervation, function

Back 21

O: spina scapula, caudal border of scapula
Ins: minor teres tuberosity
Inn:
F: flexes shoulder joint

Front 22

M. Teres major: Origin, insertion, innervation, function

Back 22

O: spina scapula, caudal border of scapula
Ins: major teres tuberosity
Inn:
F: flexes shoulder joint

Front 23

M. Subscapularis: Origin, insertion, innervation, function

Back 23

O: Fossa subscapularis
Ins: Lesser tubercule
Inn:
F:Extends and flexes shoulder joint, tendon works as collateral ligament!

Front 24

M. Coracobrachialis: Origin, insertion, innervation, function

Back 24

O: Processus coracoideus
Ins: medial surface on humerus
Inn:
F: draws upper limb in and out

Front 25

M. brachialis: Origin, insertion, innervation, function

Back 25

O: collum humerii (caudally)
Ins: medially on radius and ulna
Inn:
F: flexor of elbow joint

Front 26

M. Biceps brachii: Origin, insertion, innervation, function

Back 26

O: tuberculum supraglenoidale
Ins: radial tuberosity
Inn:
F: flexor of elbow joint, extensor of shoulder joint

Front 27

M. triceps brachii: heads

Back 27

Caput laterale, mediale, longum, accessorius(in dog)

Front 28

M. triceps brachii: Origin, insertion, innervation, function

Back 28

O: C. L.: laterally on humerus
C. M.: medially on humerus
C. Lo.: caudal border of scapula
C. A.: caudally on collum humerii
Ins: Olecranon
Inn:
F: extensors of elbow joint, C. longum is also a flexor of shoulder joint

Front 29

M. tensor fasciae antebrachii: Origin, insertion, innervation, function

Back 29

O: caudal border of scapula
Ins: antebracial fascia
Inn:
F: extensor of elbow joint, tensor of fascia

Front 30

M. anconeus: Origin, insertion, innervation

Back 30

O: Distally on humerus, olecranon fossa
Ins: laterally on olecranon
Inn:
F: Extensor of shoulder joint

Front 31

M. brachioradialis: Origin, insertion, innervation

Back 31

Extends from lateral supracondylar crest, superficial to radial extensor of carpus. Lays laterally.

Front 32

M. supinator: Origin, insertion, innervation

Back 32

In carnivors and pigs. Lies on flexor side of elbow joint. Covered by radial extensor muscles. Lays lateromedially.

Front 33

M. pronator teres: Origin, insertion, innervation

Back 33

Consistent in carnivors, Inconsistent in ruminants and pigs, reduced in horses. Lays craniomedially. Near the joint.

Front 34

M. pronator quadratus: Origin, insertion, innervation

Back 34

Only in carnivors. Lays medial/interosseous.

Front 35

M. extensor carpi radialis: Origin, insertion, innervation

Back 35

O: lateral epicondyle on humerus
Ins: proximal on 3rd metacarpal bone
Inn:

Front 36

M. extensor carpi ulnaris: Origin, insertion, innervation

Back 36

O: lateral epicondyle on humerus
Ins: 4 and 5 metacarpal bones
Inn:

Front 37

M. flexor carpi radialis: Origin, insertion, innervation

Back 37

O: medial on epicondyle on humerus
Ins: 2 and 3 metacarpal bone
Inn:

Front 38

M. flexor carpi ulnaris: heads

Back 38

Caput humerale
Caput ulnare

Front 39

M. flexor carpi ulnaris: Origin, insertion, innervation

Back 39

O: C. H: medial on epicondyle on humerus
C. U: Olecranon
Ins: accessory metacarpal bone
Inn:

Front 40

M. extensor digitorum communis: Origin, insertion, innervation

Back 40

O: lateral epicondyle on humerus
Ins: distal phalanx
Inn:

Front 41

M. extensor digitorum lateralis: Origin, insertion, innervation

Back 41

O: lateral epicondyle on humerus
Ins: middle phalanx
Inn:

Front 42

M. flexor digitorum superficialis: Origin, insertion, innervation

Back 42

O: medial epicondyle on humerus
Ins: proximal on medial phalanx
Inn:

Front 43

M. flexor digitorum profundus: Origin, insertion, innervation

Back 43

O: medial epicondyle on humerus, radius and ulna
Ins: distal phalanx
Inn: