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Cat Musculature
name, origin, insertion function
49
Anatomy
Undergraduate 4
03/22/2011

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Cards

Term
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Definition
rectus abdominis

origin: pubic symphyses

insertion: sternum and costal cartilages

function:flexes trunk and compresses abdominal viscera
Term
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Definition
pectoantebrachialis

origin: manubrium

insertion: fascia of forelimb near elbow

function: adducts and rotates forelimb
Term
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Definition
pectoralis major

origin: cranial sternebrae

insertion: proximal half of humerus

function: adducts and rotates forelimb
Term
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Definition
pectoralis minor

origin: caudal sternebrae

insertion: proximal half of humerus

function: adducts and rotates forelimb
Term
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Definition
xiphihumeralis

origin: xiphoid process

insertion: proximal end of humerus

function: adducts and rotates forelimb
Term
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Definition
digastric

origin: mastoid and jugular processes of occipital

insertion: mandible

function: depresses lower jaw
Term
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Definition
geniohyoid

origin: mandible

insertion: hyoid

function: draws hyoid craniad
Term
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Definition
mylohyoid

origin: mandible

insertion: median raphe

function: elevates floor of mouth
Term
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Definition
sternohyoid

origin: manubrium of sternum

insertion: hyoid

function: draws hyoid caudad
Term
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Definition
sternomastoid

origin: manubrium of sternum

insertion: lambdoidal ridge and mastoid process

function: rotates head
Term
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Definition
acromiodeltoid

origin: acromion process of scapula

insertion: humerus

function: flexes and rotates humberus
Term
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Definition
acromiotrapezius

origin: neural spines of cervical and 1st thoracic vertebrae

insertion: metacromion process and spine of scapula

function: draws scapula dorsally and medially
Term
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Definition
clavotrapezius

origin: nuchal line of skull and dorsal midline of neck

insertion: clavicle

function: draws humerus craniad
Term
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Definition
infraspinatus

origin: infraspinous fossa of scapula

insertion: greater tuberosity of humerus

function: rotates humerus
Term
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Definition
latissimus dorsi

origin: lumbodorsal fascia and neural spines of last thoracic and 1st lumbar vertebrae

insertion: medial surface of humerus

function: elevates arm and draws it caudad
Term
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Definition
levator scapulae ventralis

origin: occipotal bone and transverse process of atlas

insertion: metacromion process

function: draws scapula craniad
Term
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Definition
rhomboideus

origin: neural spines of thoracic vertebrae

insertion: ventral border of scapula

function: draws scapula dorsally
Term
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Definition
rhomboideus capitis

origin: superior nuchal line

insertion: angle of scapula

function: draws scapula craniad
Term
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Definition
spinodeltoid

origin: spine of scapula

insertion: deltoid ridge of humerus

function: elevates and rotates the humerus
Term
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Definition
spinotrapezius

origin: neural spines of thoracic vertebrae

insertion: fascia around scapula

function: draws scapula dorsally and caudad
Term
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Definition
coracobrachialis

origin: coracoid process

insertion: proximal end of humerus

function: adducts humerus
Term
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Definition
scalenus

origin: ribs

insertion: cervical

function: flexes neck and draws ribs craniad
Term
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Definition
serratus ventralis

origin: first 10 ribs

insertion: ventral border of scapula

function:draws scapula ventrally and craniad
Term
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Definition
subscapularis

origin: subscapular fossa

insertion: lesser tuberosity of humerus

function: draws humerus medially
Term
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Definition
brachialis

origin: lateral surface of humerus

insertion: below semilunar notch of ulna

function: flexes forearm
Term
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Definition
teres major

origin: axillary border of scapula

insertion: medial surface of humerus

function: draws humerus medially
Term
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Definition
epitrochlearis

origin: lateralis surface of latissimus dorsi

insertion: olecranon process of ulna

function: rotates ulna
Term
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Definition
triceps brachii

origin: shaft of humerus

insertion: olecranon process of ulna

function: extense forearm
Term
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Definition
brachioradialis

origin: middle of humerus

insertion: distal end of radius

function: supinate the manus
Term
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Definition
extensor carpi radialis longus

origin: distal end of humerus

insertion: second metacarpal

function: extends the manus
Term
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Definition
extensor carpi radialis brevi

origin: distal portion of the humerus

insertion: third metacarpal

function: extends the manus
Term
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Definition
extensor digitorum communis

origin: distal portion of humerus

insertion: digits II-V

function: extends the manus
Term
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Definition
extensor digitorum lateralis

origin: distal portion of humerus

insertion: digits II-V

function: extends the digits of the manus
Term
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Definition
flexor carpi ulnaris

origin: medial epicondyle of humerus and ulna

insertion: carpal pisiform bone

function: flexes the manus
Term
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Definition
flexor carpi radialis

origin: medial epicondyle of humerus

insertion: digits II and III

function: flexes the manus
Term
[image]
Definition
biceps brachii

origin: border of glenoid fossa

insertion: tuberosity of radius

function: flexes forearm
Term
[image]
Definition
pronator teres

origin: medial epicondyle of humerus

insertion: medial border of radius

function: pronates the manus
Term
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Definition
biceps femoris

origin: ischial tuberosity

insertion: proximal 3rd of tibia

function: flexes shank
Term
[image]
Definition
caudofemoralis

origin: proximal end of caudal vertebrae

insertion: patella

function: abducts thigh
Term
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Definition
gluteus maximus

origin: last sacral and first caudal vertebrae

insertion: fascia lata

function: abducts thigh
Term
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Definition
gluteus medius

origin: iliac crest, sacral and first caudal vertebrae

insertion: greater trochanter of femur

function: abducts thigh
Term
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Definition
tensor fasciae latae

origin: ilium

insertion: fascia lata

function: extends fascia lata
Term
[image]
Definition
adductor femoris

origin: pubic symphysis

insertion: ventral surface of femur

function: adducts thigh
Term
[image]
Definition
sartorius

origin: iliac crest

insertion: patella and proximal tibia

function: adducts and rotates thigh
Term
[image]
Definition
semimembranosus

origin: ischium

insertion: medial epicondyle of femur and proximal tibia

function: extends thigh
Term
[image]
Definition
semitendinosus

origin: ischium

insertion: tibia

function: flexes lower leg
Term
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Definition
vastus medialis

origin: femur

insertion: patella

function: extends lower leg
Term
[image]
Definition
gastrocnemius

origin: femur and tendon of plantaris

insertion: calcaneum

function: extends foot
Term
[image]
Definition
tibialis anterior

origin: proximal tibia and fibula

insertion: first metatarsal

function: dorsiflexes foot
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