Canine Muscles

Front 1

Location and action:

Cutaneus Trunci

Back 1

Trunk superficial just below skin

twitches skin over scapula and trunk

Hint 1

just below skin

Front 2

Location and action:

Trapezius (cervical part)

Back 2

Shoulder, back and neck, superficial

shrug- elevates scapula cranially and dorsally

Hint 2

streches from neck to scapula

Front 3

Location and action:

Trapezius (thoracic part)

Back 3

Shoulder, back and neck, superficial

elevates scapula

Front 4

Location and action:

Latissimus Dorsi

Back 4

Lateral, covers rib cage, superficial

draws limb caudally, assists in lateral flexion, digging

Front 5

The Latissimus Dorsi stretches from the humerus to the ________ _______

Back 5

Thoracolumbar fascia/ spinous processes

Hint 5

name either tendon or bone

Front 6

Location and action:

Cutaneous platysma

Back 6

back of neck to lower part of face, superficial

facial expressions

Front 7

The brachiocephalicus has two parts called ______________ and _____________

Back 7

Cleidobrachialis

Cleidocervicalis

Hint 7

named for where they insert

Front 8

Location and action:

Cleidobrachialis

Back 8

Upper arm superficial

extends shoulder, advances forelimb

Hint 8

name hints at location

Front 9

Location and action:

Cleidocervicalis

Back 9

neck, superficial

draws head to side (lateral flexion of neck)

Hint 9

stretches from shoulder/withers to neck

Front 10

Location and action:

Omotranversarius

Back 10

lateral neck, part runs under brachiocephalicus

draws neck to the side (lateral flexion of neck)

Hint 10

Omo means shoulder
transverse means...

Front 11

Name two muscles that cause lateral flexion of the neck

Back 11

Brachiocephalicus (cleidocervicalis) and omotranversarious, also sternocephalicus and longissimus

Hint 11

would need to attach to both shoulder and neck

Front 12

Location and action:

Superficial Pectoral

Back 12

Ventromedial chest superficial

adducts the arm, extends the shoulder

Hint 12

from sternum to humerus

Front 13

adduction

Back 13

movement of the limb toward the midline

Front 14

Name the two parts of the superficial pectoral

Back 14

descending and transverse

Hint 14

named for direction of muscle

Front 15

Location and action:
Deep Pectoral

Back 15

ventromedial chest, deep

adducts the arm, supports trunk

Hint 15

aka ascending pectoral

Front 16

Location and action:

Serratus Ventralis

Back 16

beneath scapula

supports trunk, depresses scapula

Hint 16

shaped like serrated wing

Front 17

Name three parts of the Rhombiodeus

Back 17

Capitis- attaches to occiput

Cervicis- attaches to vertebrae in neck (T1-T3)

Thoracis- attaches to vert. in thorax

Hint 17

(sort of) named by where they originate

Front 18

Location and action:

Rhomboideus

Back 18

shoulder, deep

all parts act to elevate scapula and forelimb, pull scapula to trunk

Hint 18

under trap

Front 19

Location and action:

Deltoideus (two heads)

Back 19

Shoulder, superficial

Spinous head- flexes shoulder

Acromial- assists spinous, stablizes joint

Hint 19

named for where they attach to the scapula

Front 20

The delts attach to processes of the ________.

Back 20

Scapula

Hint 20

bone in shoulder

Front 21

Name the four heads of the Triceps Brachii

Back 21

1) Long
2) Lateral
3) Accessory
4) Medial

Front 22

All heads of the Triceps Brachii attach to the elbow. Which one also attaches to the shoulder?

Back 22

Long

Front 23

Location and action:

Triceps Brachii

Back 23

caudal upper arm lateral

all heads: extends elbow
long head: also flexes shoulder

Hint 23

insert at olecranon tuberosity

Front 24

Location and action:

Supraspinatus

Back 24

shoulder, deep

extends shoulder, stablizes joint

Hint 24

-where is the supraspinatus fossa?

- muscle is under deltoid

Front 25

Location and action:

Infaspinatus

Back 25

shoulder, superficial

flexes, abducts, laterally rotates shoulder, stablizes joint

Hint 25

one busy muscle

Front 26

Location and action:

Teres Minor

Back 26

shoulder, deep

flexes and laterally rotates shoulder

Hint 26

does some similar actions to the infraspinatus

Front 27

Location and action:

Teres Major

Back 27

caudal shoulder, deep

flexes and medially rotates shoulder

Hint 27

rotates opposite to Teres minor

Front 28

Location and action:

Subscapularis

Back 28

shoulder, deep

adduct, extend and stabilize the shoulder joint, Rotates arm medially

Hint 28

sub...scapularis

action: "Put your right arm in"

Front 29

What two joints does the Biceps Brachii span?

Back 29

elbow and shoulder

Hint 29

upper arm

Front 30

Location and action:

Biceps Brachii

Back 30

cranial upper arm

extends shoulder and flexes elbow

Hint 30

biceps spans two joints, has two actions

actions might occur while dog is pointing.

Front 31

Location and action:

Brachialis

Back 31

cranial upper arm

flexes elbow

Hint 31

similar to biceps but only spans one joint

Front 32

Location and action:

Extensor Carpi Radialis

Back 32

cranial/dorsal forearm

extends carpus

Hint 32

named for both location and action

Front 33

Location and action:

Common digital extensor

Back 33

cranial/lateral forearm

extends toes (II through V) and carpals

Hint 33

named for both location and action

Front 34

Location and action:

Ulnaris Lateralis

Back 34

forearm lateral

extends carpus

Hint 34

similar in action to Extensor Carpi Radialis

Front 35

Location and action:

Flexor Carpi Ulnaris (2 heads)

Back 35

caudal forearm

ulnar head and humeral head, both flex carpus

Hint 35

named for both location and action

Front 36

Location and action:

Superficial Digital Flexor

Back 36

caudal forearm superficial

flexes carpus and digits

Hint 36

does more than flex digits

Front 37

Location and action:

Flexor Carpi Radialis

Back 37

forearm medial

flexes carpus

Hint 37

named for action

Front 38

Location and action:

Deep Digital Flexor

Back 38

Caudal forearm deep

flexes carpus and digits

Hint 38

sim to Superficial digital flexor, except deeper

Front 39

Location, action, and species:

Brachioradialis

Back 39

runs from humerus to metacarpals

circumduction of forearms

cats

Hint 39

for climbing, not in dogs

Front 40

Location and action:

Splenius

Back 40

dorsolateral neck deep

extends head, lateral flexion of head, rotation of head, raises head and neck, stabilizes T1

Hint 40

under cervical part of brachiocephalicus

goes from back to occiput and temporal bone

Front 41

Latissimus dorsi

Back 41

Name the orange muscle on the thorax

Front 42

Trapezius
cervical and thoracic

Back 42

Name the purple muscle at base of the neck (dorsal)

Hint 42

superficial

shrug

Front 43

Brachiocephalicus

Back 43

What is the blue muscle running down the neck to the leg?

Front 44

Deep pectoral

Back 44

What is the bright orange muscle at the underside of the thorax?

Front 45

Deltoid
spinous and acromial heads

Back 45

Which muscle is the arrow pointing to?

Front 46

Omotransversarius

Back 46

What is the partially hidden yellow muscle?

Hint 46

runs across neck

Front 47

Deltoid, specifically acromial head

Back 47

Identify muscle 2

Hint 47

Δ

Front 48

Triceps, extends shoulder and flexes elbow

Back 48

Identify muscle 7 and give its action

Hint 48

4 heads

Front 49

brachiocephalicus, specifically cleidocervicalis

draws head to side

Back 49

Identify muscle part (one part of a two-part muscle) and give action

Front 50

Sternocephalicus

draws head and neck to the side

Back 50

Identify muscle and give action

Hint 50

between sternum and side of head

Front 51

Sternohyoides

pulls tongue and larynx caudally

Back 51

Identify muscle and give action

Hint 51

Attaches to the hyoid apparatus

Front 52

External oblique

flexes and moves spine laterally, compresses abdomen, supports viscera

Back 52

Identify muscle and give actions.

Front 53

flexors

Back 53

This group of muscles are often referred to as ____________ .

Hint 53

based on how they act on the carpals and digits

Front 54

Identify 92 and give action

Back 54

Supraspinatus

extends shoulder, stabilizes joint

Hint 54

originates on the upper side of the scapula, inserts at humerous

Front 55

Identify 70 and give action

Back 55

Sternochephalic

draws head and neck to side

Hint 55

named for where it attaches

Front 56

Identify 87 and give action

Back 56

Omotranversarius

flexes neck to side

Hint 56

name means "shoulder" "transverse"

Front 57

Identify 88 and give action

Back 57

Superficial Pectoral(descending and transverse portions)

adducts the arm
extends the shoulder

Hint 57

2 actions

Front 58

Identify 89 and give action

Back 58

Deep Pectoral

adducts the arm
supports trunk

Hint 58

2 actions

Front 59

Identify 65 and give action

Back 59

Splenius

extends head, laterally flexes head, rotates head, raises head and neck, stabilizes t1

Hint 59

goes from back to top/side of head (one either side of head). If one side contracted, what would happen?

Front 60

Identify 79 and give action

Back 60

External Oblique

flexes and moves spine laterally, compresses abdomen, supports viscera

Front 61

Identify 73 & 74 and give action

Back 61

Serratus Ventralis (see deep view below scapula)

Supports trunk, depresses scapula

Front 62

Identify 84, 85, & 86 and give action

Back 62

Romboideus (84-Capital, 85-Cervcis, 86-Thoracis)

elevates scapula and forelimb, pulls scapula to trunk

Hint 62

head/neck to top of scapula

Front 63

Identify 69 and give action

Back 63

Scalenus (2 parts)

aids in inhalation by drawing ribs cranially

Hint 63

from cervical spine to cranial ribs

Front 64

Identify 75 and give action

Back 64

External intercostals

draws ribs cranially in inhalation

Hint 64

similar action to scalene muscle, though very short

Front 65

Identify 60 and give action

Back 65

Sternothyroideus

draws thyroid cartilage of larynx caudally

Hint 65

1st costal cartilage to thyroid cartilage

Front 66

Identify 93 and give action

Back 66

Infraspinatus

flexes, abducts and laterally rotates shoulder, stabilizes joint

Hint 66

named for where it attaches on the scapula

Front 67

Identify 94 and give action

Back 67

Teres Minor

flexes and laterally rotates shoulder

Hint 67

action hint: runs from ventral scapula, out from under the infraspinatus, and and wraps around to front of humerus

Front 68

Identify 95 and give action

Back 68

Teres Major

flexes and medially rotates shoulder

Hint 68

action hint: runs from caudal angle of scapula, behind scapula, to wrap around front of humerus

Front 69

Identify 101 and give action

Back 69

Superficial pectoral muscles

adducts the arm, extends shoulder

Front 70

Identify 102 and give action

Back 70

Deep Pectoral

adducts arm, supports trunk

Hint 70

aka ascending

Front 71

Identify 109 and give action

Back 71

Biceps Brachii

extends shoulder, flexes elbow

Hint 71

spans two joints

Front 72

Identify 98 and give action

Back 72

Sternocephalicus

draws head and neck to side

Hint 72

baroo?

Front 73

Identify 103 & 104 (2 parts of same muscle) and give actions

Back 73

103-Cleidocervalicus,
draws head to side

104-Cleidobrachialis,
extends shoulder, advances forelimb

Hint 73

103 would be used to look at you while heeling

104 would be used when beginning to walk forward

Front 74

Identify the pink muscle shown in the front and side view. Give action.

Back 74

Brachialis

flexes elbow

Hint 74

attaches from one part of arm to another

Front 75

Identify 43 and give action

Back 75

Supraspinatus

extends shoulder, stabilizes joint

Hint 75

Named for where it attaches to scapula

Front 76

Identify 97 and give action

Back 76

Sternothyroideus

draws thyroid cartilage of larynx caudally