Muscles of the Forelimb Part 2

Question 1

latissimus dorsi origin

Answer 1

thoracolumbar fascia from spinous process of lumbar and last 7-8 thoracic vertebrae; muscular attachment to last 2-3 ribs
aponeurotic CT

Question 2

latissimus dorsi insertion

Answer 2

teres major tuberosity of the humerus and teres major tendon

Question 3

latissimus dorsi action

Answer 3

flex shoulder joint and adduction

Question 4

latissimus dorsi innervation

Answer 4

thoracodorsal nerve

Question 5

Deep layer

Answer 5

deep pectoral, subclavian, rhomboid, serrates ventralis

Question 6

Which portion of the deep pectoral is deep?

Answer 6

cranial

Question 7

which portion of the deep pectoral is superficial?

Answer 7

caudal

Question 8

what is the official name of deep pectoral?

Answer 8

pectoralis profundus

Question 9

what is the official name of subclavian muscle?

Answer 9

subclavius

Question 10

what is the official name of the rhomboid muscle?

Answer 10

rhomboideus

Question 11

what is the official name of the ventral serrate muscle?

Answer 11

serrates ventralis

Question 12

deep pectoral origin

Answer 12

ventral part of the sternum and median raphe

Question 13

deep pectoral insertion

Answer 13

lesser tubercle of the humerus, crest of greater tubercle

Question 14

deep pectoral action

Answer 14

pull the trunk cranially, extend shoulder when contracts, adduct limb

Question 15

is origin or insertion static

Answer 15

origin

Question 16

is origin or insertion mobile

Answer 16

insertion

Question 17

How many parts of the rhomboideus

Answer 17

cervical, thoracic, capital

Question 18

Where does the rhomboideus lie?

Answer 18

deep to trapezius

Question 19

What part of the rhomboideus gives extension to the head

Answer 19

capitis

Question 20

rhomboideus insertion

Answer 20

medial aspect of the dorsal part of the scapula

Question 21

rhomboideus cervicis origin

Answer 21

spinous process of cervical vertebrae (C1-C3) and medial raphae

Question 22

rhomboideus thoracis origin

Answer 22

spinous processes of the cranial thoracic vertebrae (t4-T7)

Question 23

rhomboideus capitis origin

Answer 23

occipital crest or nuchal crest

Question 24

rhomboideus action

Answer 24

abduction and adduction of forelimb

Question 25

characteristic of serrates ventralis

Answer 25

serrated edge (fan shaped)

Question 26

serratus ventralis insertion

Answer 26

dorsomedial third of the scapula (serrated face)

Question 27

serratus ventralis action

Answer 27

support trunk and depress scapula

Question 28

serratus ventralis innervation

Answer 28

ventral branches of cervical spinal nerves and long thoracic nerve C7

Question 29

serratus ventralis origin

Answer 29

transverse process of C3-C7 and first 7-8 ribs ventral to middle

Question 30

serratus ventralis has two portions

Answer 30

cervicis and thoracis

Question 31

lateral shoulder muscles

Answer 31

supraspinatus, infraspinatus, deltoid, teres minor

Question 32

medial shoulder muscles

Answer 32

teres major, subscapular, coracobrachial

Question 33

supraspinous fibers

Answer 33

two different fiber directions

Question 34

which is larger: supraspinatus or infraspinatus?

Answer 34

supraspinatus

Question 35

supraspinatus is covered by cervical part of:

Answer 35

trapezius and omotransversarius

Question 36

supraspinatus origin

Answer 36

supraspinous fossa

Question 37

supraspinatus insertion

Answer 37

greater tubercle of the humerus

Question 38

supraspinatus action

Answer 38

extends shoulder joint when contracts, stabilizes shoulder

Question 39

supraspinatus innervation

Answer 39

supra scapular nerve

Question 40

what is another term for extend

Answer 40

fix, stabilize

Question 41

infraspinatus shape

Answer 41

fusiform (spindle)

Question 42

infraspinatus origin

Answer 42

infraspinous fossa

Question 43

infraspinatus insertion

Answer 43

lateral side of the greater tubercle of the humerus

Question 44

bursa is found between

Answer 44

tendon and caudal part of the greater tubercle

Question 45

infraspinatus action

Answer 45

extend or flex, abduct shoulder, rotate shoulder laterally

Question 46

infraspinatus action when weight baring

Answer 46

prevent medial rotation, lateral stability to shoulder

Question 47

infraspinatus innervation

Answer 47

suprascapular nerve

Question 48

deltoideus heads

Answer 48

pars scapularis (scapular) and pars acromialis (acromion) which FUSE

Question 49

deltoideus origin

Answer 49

spine and acromial process of scapula

Question 50

deltoideus insertion

Answer 50

deltoid tuberosity

Question 51

deltoideus action

Answer 51

flex shoulder

Question 52

deltoideus innervation

Answer 52

axillary nerve

Question 53

teres minor shape

Answer 53

wedge

Question 54

teres minor origin

Answer 54

infraglenoid tubercle and distal third of caudal border of scapula

Question 55

teres minor insertion

Answer 55

teres minor tuberosity of humerus

Question 56

teres minor action

Answer 56

flex shoulder, rotate shoulder laterally, prevent medial rotation when weight baring

Question 57

teres minor innervation

Answer 57

axillary nerve

Question 58

is teres minor lateral or medial

Answer 58

lateral

Question 59

is teres major lateral or medial

Answer 59

medial

Question 60

teres major origin

Answer 60

caudal angle and caudal border of scapula, caudal surface of subscapularis

Question 61

teres major insertion

Answer 61

teres major tuberosity of the humerus

Question 62

teres major action

Answer 62

flex shoulder, rotate shoulder medially, prevent lateral rotation when weight baring

Question 63

teres major innervation

Answer 63

axillary nerve

Question 64

coracobrachialis shape

Answer 64

spindle

Question 65

coracobrachialis location

Answer 65

crosses medial surface of shoulder obliquely

Question 66

coracobrachialis has what on top

Answer 66

synovial sheath

Question 67

coracobrachialis muscle belly

Answer 67

distal to lesser tubercle and medial to origin of medial head of triceps

Question 68

coracobrachialis origin

Answer 68

coracoid process of the scapula

Question 69

coracobrachialis insertion

Answer 69

crest of lesser tubercle of humerus proximal to teres major tuberosity

Question 70

coracobrachialis action

Answer 70

adduct, extend, stabilize shoulder

Question 71

coracobrachialis innervation

Answer 71

musculocutaneous nerve

Question 72

the conjoined tendon of teres major and latissimus doors crosses:

Answer 72

insertion of coracobrachialis

Question 73

subscapularis origin

Answer 73

the sub scapular fossa

Question 74

subscapularis insertion

Answer 74

lesser tubercle of the humerus

Question 75

subscapularis action

Answer 75

adduct, extend, medially stabilize shoulder

Question 76

subscapularis action weight bearing

Answer 76

rotate shoulder medially and prevent lateral rotation

Question 77

subscapularis innervation

Answer 77

subscaupular nerve

Question 78

muscles of the elbow

Answer 78

brachial, biceps, triceps, anconeus, tensor of ante brachial fascia

Question 79

tensor fasciae antebrachii shape

Answer 79

thin strap

Question 80

tensor fasciae antebrachii origin

Answer 80

fascia of lateral latissimus dorsi

Question 81

tensor fasciae antebrachii insertion

Answer 81

olecranon

Question 82

tensor fasciae antebrachii action

Answer 82

elbow extension

Question 83

tensor fasciae antebrachii innervation

Answer 83

radial

Question 84

brachialis shape

Answer 84

long, thin

Question 85

brachialis lies where

Answer 85

in brachial spiral groove

Question 86

brachialis origin

Answer 86

lateral aspect of proximal 1/3 of humerus

Question 87

brachialis insertion

Answer 87

ulnar and radial tuberosities

Question 88

brachialis action

Answer 88

elbox flexion

Question 89

brachialis innervation

Answer 89

musculocutaneous nerve

Question 90

biceps brachii - how many heads

Answer 90

1

Question 91

biceps brachii shape

Answer 91

fusiform (spindle)

Question 92

biceps brachii splits where

Answer 92

at distal extremity, splits into two insertions

Question 93

How many heads in triceps brachii?

Answer 93

4 - lateral, long, medial, accessory

Question 94

Which triceps brachii heads are lateral?

Answer 94

lateral, long, part of accessory

Question 95

which triceps brachii heads are medial?

Answer 95

long, accessory, medial

Question 96

triceps brachii insertion

Answer 96

olecranon tuber

Question 97

triceps brachii long head origin

Answer 97

caudal border of scapula

Question 98

triceps brachii lateral head origin

Answer 98

tricipital line of humerus

Question 99

triceps brachii accessory head origin

Answer 99

neck of humerus

Question 100

triceps brachii medial head origin

Answer 100

crest of lesser tubercle

Question 101

triceps brachii action

Answer 101

shoulder flexion (long head only) and extension of elbow

Question 102

triceps brachii innervation

Answer 102

radial nerve

Question 103

anconeus origin

Answer 103

lateral supracondylar crest, medial and lateral humeral epicondyles

Question 104

anconeus insertion

Answer 104

lateral aspect of proximal ulna

Question 105

anconeus action

Answer 105

elbow extension

Question 106

anconeus innervation

Answer 106

radial nerve