Mucsles Of The Fetal Pig

Front 1

Pectoralis major

Back 1

ORIGIN- sternum
INSERTION- entire length of humerus and fascia
ACTION- pull arm towards the body

Front 2

Latissimus dorsi

Back 2

ORIGIN- lumbodorsal fascia, lumba and last thoracic vertebrae
INSERTION- proximal end of the humerus on ventral surface
ACTION- pull arm upwards and backwards

Front 3

External oblique

Back 3

ORIGIN- posterior ribs, lumbodorsal fascia
INSERTION- sponeurosis along mid ventral surface
ACTION- constricts abdomen and aids in respiration and defacation

Front 4

Internal oblique

Back 4

ORIGIN- posterior ribs, lumbodorsal fascia
INSERTION- aponeurosis
ACTION- constricts abdomen and aids in respiration and defacation

Front 5

Transversus abdominis

Back 5

ORIGIN- lower rib and lumbar vertebrae
INSERTION- linea alba in aponeurosis
ACTION- constricts abdomen and aids in respiration and defacation

Front 6

Rectus abdominis

Back 6

ORIGIN- pubis
INSERTION- upper ribs and sternum
ACTION- constricts abdomen

Front 7

Sartorius

Back 7

ORIGIN- iliac
INSERTION- proximal end of tibia
ACTION-

Front 8

Gracilis

Back 8

ORIGIN- pubis symphasis
INSERTION- proximal 1/3 of tibia, medial side
ACTION- pulls the thigh in towards the midline of the body

Front 9

Sternomastoid

Back 9

ORIGIN- sternum
INSERTION- mastoid process
ACTION-

Front 10

Sternohyoid

Back 10

ORIGIN- sternum
INSERTION- hyoid
ACTION-

Front 11

Brachiochephalic

Back 11

ORIGIN- skull
INSERTION- hyoid
ACTION- pulls the head forward

Front 12

Spinotrapezius

Back 12

ORIGIN- spines of thoracic vertebrae
INSERTION- scapula
ACTION- raises the should and pulls it away from the chest

Front 13

Acromiodeltoid

Back 13

ORIGIN- scapula
INSERTION- proximal end of humerus
ACTION- raises the humerus

Front 14

Biceps brachii

Back 14

ORIGIN- glenoid area of scapula
INSERTION- radius and ulna
ACTION- flexes forearm toward upper arm

Front 15

Spinodeltoid

Back 15

ORIGIN- spine of scapula
INSERTION- proximal end of humerus
ACTION- raises the humerus

Front 16

Triceps brachii
a. LONG HEAD
b. MEDIAL HEAD
c. LATERAL HEAD

Back 16

Origin
a. border of scapula
b.proximal portion of humerus
c. proximal end of humerus
INSERTION
a. ulna
b. ulna
c. ulna
ACTION
a. extends forearm
b. extends forearm
b. extends forearm

Front 17

Tensor Fasiae latae

Back 17

ORIGIN
crest of ilium
INSERTION
tibia
ACTION
flexes hip, extends the knee, pulls on fascia

Front 18

Gluteus maximus

Back 18

ORIGIN
last sacral and first caudal vertebrae
INSERTION
fascia latae
ACTION
pull thigh away from midline

Front 19

Biceps femoris

Back 19

ORIGIN
posterior portion of the sacrum and ischium
INSERTION
aponeurosis along tibia
ACTION
pulls thigh away from midline

Front 20

Semimembranous

Back 20

ORIGIN
iscial tuberosis
INSERTION
distal end of femur and proximal end of tibia
ACTION
extends hip and pulls leg towards the midline

Front 21

Semitendinous

Back 21

ORIGIN
first caudal vertebrae and ilium
INSERTION
upper end of tibia
ACTION
pulls thigh toward midline

Front 22

Gastrocnemius

Back 22

ORIGIN
two heads, distal end of femur
INSERTION
calcaneous
ACTION
extend the foot

Front 23

Tibialis Anterior

Back 23

ORIGIN
proximal end of tibia and fibula
INSERTION
2nd metatarsal
ACTION
flex the foot