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Cat Muscles Origin Insertion Function

Table6. 4 P. 105
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Side ASide B
external intercostal
o: Rib i: rib f: draws ribs craniad
external obliques
o: lumbodorsal fascia & ribs i: aponeurois on the linea alba f: compresses abdominal...
rectus abdominis
O: pubic symphysis i: sternum & costal cartilage f: flexes trunk & compresses abdominal...
clavobrachialis
o: clavicle i: proximal end of ulna f: draws humerus craniad
pectoantebrachialis
O: manubrium i: fascia of forelimb near elbow f: adducts & rotates the forelimb
pectoralis major
o: cranial sternebrae i: proximal half of humerus f: adducts & rotates the forelimb
pectoralis minor
o: caudal sternebrae i: proximal half of humerus f: adducts & rotates the forelimb
xiphihumeralis
o: xiphoid process i: proximal end of humerus f: adducts & rotates the forelimb
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digastric
o: mastoid & juglar processes of occipital i: mandible f: depresses lower jaw
geniohyoid
O: mandible i: hyoid f: draws hyoid craniad
hyoglossus
O: hyoid i: tongue f: retracts tongue
mylohyoid
o: mandible i: median raphe f: elevates floor of mouth
sternohyoid
o: manubrium of sternum i: hyoid f: draws hyoid caudal
sternomastoid
o: manubrium of sternum i: lambdoidal ridge & mastoid process f: rotates head
sternothyroid
o: manubrium of sternum i: thyroid cartilage f: draws larynx caudal
thyrohoid
o: thyroid cartilage i: hyoid f: draws larynx craniad
masseter
O; zygomatic arch i: mandible f: elevates lower jaw
temporalis
o: lambdoidal crest & zygomatic process of frontal bone i; coronoid process of mandible f:...
acromiodeltoid
o: acromion process of scapula i: humerus f: flexes and rotates humerus
acromiotrapezius
o: neural spines of cervical and 1st thoracic vertebrae i: metacromion process and spine of...
clavotrapezius
o: nuchal line of skull & dorsal midline of neck i: clavicle f: draws humerus craniad
infraspinatus
o: infraspinous fossa of scapula i: greater tuberosity of humerus f: rotates the humerus  
latissimus dorsi
o: lumbodorsal fascia & neural spines of the last thoracic and lumbar vertebrae   i:...
levator scapulae ventralis
O: occipital bone and transverse process of atlas i: metacromion process f: draws scapula...
rhoboideus
o: neural spines of thoracic vertebrae i: ventral border of scapula f: draws scapula dorsally
rhomboideus capitis
o: superior nuchal line i: angle of scapula f: draws scapula craniad
spinodeltoid
o: spine of scapula i; deltoid ridge of humerus f: elevates & rotates the humerus
spinotrapezius
o: neural spines of thoracic vertebrae i: fascia around scapula f: draws scapula dorsally...
splenius
o: mid-dorsal fascia of neck i: nuchal line f: turns and elevates head
supraspinatus
o: supraspinous fossa i: greater tuberosity of humerus f: extends the humerus
coracobrachialis
o: coracoid process i: proximal end of humerus f: adducts humerus
scalenus
o: ribs i: cervical vertebrae f: flexes neck, draws ribs craniad  
serratus ventralis
o: first 10 ribs i: vertebral border of scapula f: draws scapula ventrally & craniad
subscapularis
o: subscapular fossa i: lesser tuberosity of humerus f: draws humerus medially
teres major
o: axillary border of scapula i: medial surface of humerus f: draws humerus medially
transversus costarum
o: sternum i: first rib f: draws sternum craniad
biceps brachii
o: border of glenoid fossa i: tuberosity of radius f: flexes forearm
brachialis
o: lateral surface of humerus i: below semilunar notch of ulna f: flexes forearm
epitrochlearis
o: lateral surface of latissimus dorsi i: below semilunar notch of unla f: flexes forearm
triceps brachii lateral head
O: shaft of humerus i: olecranon process of ulna f: extends forearm
triceps brachii medial head
o: axillary border of scapula i: olecranon process f: extends the forearm
triceps brachii long head
o: humerus i: olecranon fossa f: extends forearm
brachioradialis
o: middle of humerus i: distal end of radius f: supinator of manus
extensors (forearm-antebrachium)
o: omit i: omit f: extend manus or digits
flexors (forearm-antebrachium)
o: omit i: omit f: flexes manus


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