Oia of Cat Muscle

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Dermal Muscles
1. Panniculus carnosus/ Cutaneous maximus
2.Platysma
Muscles of Abdominal Wall
1. External Oblique
O: Lumbodorsal fascia & posterior ribs
I: neurosis, linea alba & pubis
A: constrictor of abdomen
2. Internal Oblique
O: 2nd sheet of the lumbodorsal fascia & border of the pelvic girdle
I: linea alba
A: compressor of the abdomen
3. Transversus abdominis
O: 2nd sheet of the lumbodorsal fascia & border of the pelvic girdle
I: linea alba
A: compressor of the abdomen
4. Rectus Abdominis
O: Anterior end of pubic symphysis
I: Sternum and costal cartilage
A: retracts ribs and sternum and compresses abdomen

Epaxial Muscles
1. Multifudus spinae-diagonal fiber
2. Sacrospinalis- beside multifudus
a. Semispinalis-beneath Rhomboideus
b. Longissimus-beneath a
c. Iliocostalis-beneath b

Muscles of the Chest
1. Pectoantibranchialis
O: Manubrium
I: Flat tendon on the fascia of the forearm
A: draws the arm toward the chest
2. Pectoralis Major-beneath 1
O: sternum and median ventral raphe
I: humerus
A: draws the arm toward the chest

3. Pectoralis Minor-beneath 2
O: sternum
I: humerus
A: draws the arm toward the chest

4. Xiphihumeralis-beneath 3
O: Xiphoid process of the sternum
I: humerus
A: draws the arm toward the chest

Muscles of Neck and Throat
1. Sternomastoid
O: median raphe &manubrium of the sternum
I: skull from lamboidal bridge onto mastoid process
A: singly turn the head, together depress head on neck
2. Sternohyoid
O: first costal cartilage
I: body of the hyoid bone
A: draw the hyoid posteriorly
3. Cleidomastoid
O: clavicle
I: mastoid process
A: pulls clavicle craniad or turns head,singly lowers head on neck 4. Clavotrapezius
O: skull
I: clavicle
A:
Clavobranchialis
O: clavicle and fibers of clavotrapezius
I: ulna
A: flexor of the forearm
5. Masseter
O: zygomatic arch
I: posterior half of lateral surface of the mandible
A: elevator of the lower jaw
6. Temporal
O: zygomatic process
I: coronoid process of mandible
A: elevator of the jaw
7. Digastric
O: jugular & mastoid process of skull
I: mandible
A: depressor of the lower jaw

8. Mylohyoid
O: mandible
I: median raphe
A: raises floor of the mouth& brings hyoid forward
9. Geniohyoid
O: mandible near the symphysis
I: body of the hyoid
A: draws the hyoid forward
10. Sternothyroid
O: sternum
I: thyroid cartilage of the larynx
A: pulls the larynx posteriorly
11. Thyrohyoid
O: thyroid cartilage
I: posterior horn of the hyoid
A: raises of the larynx

Muscles of the Upper Back
1. Latissimus dorsi
O: neural spines of the last thoracic & most of the lumbar vertebrae, lumbodorsal fascia I: tendon on the medial surface of the humerus
A: pulls the forelimb dorsally and caudally
2. Trapezius muscles
a. Spinotrapezius-posterior trapezius
O: spines of the thoracic vertebrae
I: fascia of the scapula
A: draws the scapula dorsad & caudad
b. Acromiotrapezius-middle trapezius
O: neural spines and cervical and first thoracic vertebrae
I: metacromion process & spine of the scapula &fascia A: draws scapula dorsad and holds 2 scapulae together
c. Clavotrapezius-anterior
O: superior nuchal line & median dorsal line of neck
I: clavicle
A: draws the clavicle dorsad & craniad

3. Levator Scapulae Ventralis
O: transverse process of the atlas &occipital bone
I: metachromion process &neighboring fascia
A: draws the scapula craniad
4. Rhomboideus
O: neural spines of the vertebrae & adjacent ligaments
I: vertebral border of the scapula
A: draws scapula dorsad
5. Rhomboideus capitis
O: superior nuchal line
I: scapula
A: draws the scapula craniad & rotates it
6. Splenius
O: middorsal line & fascia
I: superior nuchal line
A: raises or turns head
7. Supraspinatus
O: supraspinous fosse
I: greater tuberosity of humerus
A: extends the humerus...
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