muscles Flashcards
temporalis origin
mid-dorsal line of the cranium
temporalis insertion
ventrally passing b/w the eyes and tympanic membranes
temporalis action
raises mandible and closes the mouth
dorsalis scapulae origin
dorsal side of the scapula and suprascapula
dorsalis scapulae insertion
lateral side of the humerus
dorsalis scapulae action
abductor of the arm
latissimus dorsi origin
lumbo-dorsal fascia
latissimus dorsi insertion
lateral side of the prox. end of the humerus
latissimus dorsi action
draws the forelimbs upward and backward
longissimus dorsi origin
posterior end of the urostyle
longissimus dorsi insertion
posterior end of cranium and dorsal surface of the vertebrae
longissimus dorsi action
extends the back and elevates the head
ilio-lumbaris origin
anterior end of the ilium
ilio-lumbaris insertion
transverse processes of the trunk vertebrae
ilio-lumbaris action
bends the back
coccygeo-sacralis origin
lateral side of the half of the urostyle
coccygeo-sacralis insertion
transverse processes of the sacral
coccygeo-sacralis action
draws the urostyle and back near each other
coccygeo-iliacus origin
lateral posterior end of the urostyle
coccygeo-iliacus insertion
anterior of the ilium
coccygeo-iliacus action
extends the back
mylohyoid origin
medial part of the lower jaw
mylohyoid insertion
median raphe
mylohyoid action
raises the floor of the mouth during inhalation, exhalation, and swallowing
geniohyoid origin
anterior angle of the lower jaw
geniohyoid insertion
posterior cornua and thyroid processes of the hyoid
geniohyoid action
draws the hyoid upward and forward
submentalis origin
anterior tip of mandible
submentalis insertion
anterior angle of the lower jaw
submentalis action
closes the external nares and raises the lower jaw
sternoradialis origin
episternum and omosternum
sternoradialis insertion
prox. end of the radius
sternoradialis action
bends the forearm
scapulohumeralis/deltoid origin
scapula
scapulohumeralis/deltoid insertion
deltoid ridge
scapulohumeralis/deltoid action
adductor and protractor of the arm
triceps brachii origin
base of the scapula and shaft of the humerus
triceps brachii insertion
prox. end of the radio-ulna
triceps brachii action
extensor of the forearm
cutaneous pectoralis origin
rectus abdominis and anterior part of the pectoralis abdominis
cutaneous pectoralis insertion
along the skin of the pectoral region
cutaneous pectoralis action
draws the skin caudal
pectoralis epicoracoidea origin
epicoracoid
pectoralis epicoracoidea insertion
deltoid ridge
pectoralis epicoracoidea action
rotates and adducts the arm
pectoralis sternalis origin
xiphisternum and mesosternum
pectoralis sternalis insertion
prox. end of the humerus
pectoralis sternalis action
rotates and adducts the arm
pectoralis abdominis origin
entire length at the sides of the rectus abdominis
pectoralis abdominis insertion
deltoid ridge
pectoralis abdominis action
rotates and adducts the arm
rectus abdominis origin
pubic border
rectus abdominis insertion
sternum
rectus abdominis action
supports the abdomen and serves as its constrictor
external oblique origin
ilium and dorsal fascia
external oblique insertion
linea alba
external oblique action
constricts the abdomen and supports the viscera
transversus / internal oblique origin
ilium, dorsal fascia, transverse processes of the vertebrae
transversus / internal oblique insertion
linea alba and xiphisternum
transversus / internal oblique action
constricts the abdomen and supports the viscera
triceps femoris origin
ilium and acetabulum
triceps femoris insertion
prox. end of the tibio-fibula
triceps femoris action
draws the hindlimbs forward and extends the leg
vastus externus origin
ridge of the ilium
vastus externus insertion
prox. end of the tibio-fibula
vastus externus action
draws the hindlimbs forward and extends the leg
rectus femoris anticus origin
ventral side of the ilium
rectus femoris anticus insertion
prox. end of the tibio-fibula
rectus femoris anticus action
draws the hindlimbs forward and extends the leg
vastus internus origin
anterior border of the acetabulum
vastus internus insertion
prox. end of the tibio-fibula
vastus internus action
draws the hindlimbs forward and extends the leg
gluteus origin
ilium
gluteus insertion
prox. end of the femur
gluteus action
rotates the femur forward
biceps femoris origin
posterior part of the ilium
biceps femoris insertion
prox. end of the tibio-fibula
biceps femoris action
bends the leg and draws the thigh dorsally
semimembranosus origin
posterior part of the ischium
semimembranosus insertion
prox. end of the tibio-fibula
semimembranosus action
flexes the shank
pyriformis origin
posterior tip of the urostyle
pyriformis insertion
prox. end of the femur
pyriformis action
draws femur dorsally and pulls urostyle on one side
sartorius origin
ilium in front of the pubis
sartorius insertion
prox. end of the tibio-fibula (tendon)
sartorius action
bends the thigh and pulls it ventrally and forward
adductor longus origin
ventral part of the ilium
adductor longus insertion
distal end of femur
adductor longus action
pulls the thigh ventrally and forward
adductor magnus origin
ischium (bigger short head) and pubis (smaller long head)
adductor magnus insertion
distal end of femur
adductor magnus action
abducts and adducts the thigh and pulls it forward
gracilis major origin
ischium
gracilis major insertion
prox. end of tibio-fibula
gracilis major action
flexes the shank and pulls the thigh backward
gracilis minor origin
ischium
gracilis minor insertion
prox. end of tibio-fibula
gracilis minor action
flexes the shank and pulls the thigh backward
semitendinosus origin
ischium
semitendinosus insertion
end of tibio-fibula
semitendinosus action
bends and adducts the leg
gastrocnemius origin
triceps thru the knee (small head) and distal end of femur/prox end of tibio-fibula (big head)
gastrocnemius insertion
ankle and flat surface of the foot
gastrocnemius action
flexor and extensor of foot
peroneus origin
distal end of femur
peroneus insertion
distal end of tibio-fibula and calcaneum
peroneus action
flexor and extensor of foot and extensor of leg
tibialis posticus origin
posterior of tibio-fibula
tibialis posticus insertion
prox. end of astragalus
tibialis posticus action
extends and bends the foot accdg to its position
extensor cruris origin
distal end of femur
extensor cruris insertion
anterior surface of tibio-fibula
extensor cruris action
extends the foot
flexor tarsi anterior origin
anterior surface of the middle and distant half of tibio-fibula
flexor tarsi anterior insertion
prox. end of astragalus
flexor tarsi anterior action
flexes the foot
tibialis anticus origin
distal end of femur
tibialis anticus insertion
distal end of astragalus and calcaneum
tibialis anticus action
flexes and extends the foot