Muscular System Flashcards
Origin of the Temporalis
Temporal bone
Insertion of the Temporalis
mandible
function of the Temporalis
raises jaw
origin of the Masseter
zygomatic arch
common name for zygomatic arch
cheek bone
insertion of the Masseter
mandible
function of the Masseter
raises the jaw and controls lowering speed
origin of the Orbicularis Oculi
maxillary and frontal bones
insertion of the Orbicularis Oculi
skin around the eye
function of the Orbicularis Oculi
closes the eye
origin of the Platysma
upper chest fascia
insertion of the Platysma
lower mandible
function of the Platysma
draws mouth down
origin of the sternocleidomastoid
sternum and clavicle
insertion of the sternocleidomastoid
mastoid process of temporal bone
function of sternocleidomastoid
pull head to side and pull head forward to chest
origin of the orbicularis oris
muscles near the mouth
insertion of the orbicularis oris
skin of lip
function of the orbicularis oris
closes and protrudes lips
origin of the Epicranius
occipital bone
insertion of the Epicranius
skin and muscles above the eye
function of the Epicranius
raises eyebrows
What two muscles make of the Epicranius
Frontalis and Occipitalis
Origin of the Deltoid
clavicle and spine of scapula
insertion of the Deltoid
humerus
function of the Deltoid
abduct the humerus (arm)
origin of the pectoralis major
clavicle, sternum, and costal cartilage of upper ribs
insertion of the pectoralis major
humerus
function of the pectoralis major
moves arm across chest, adducts humerus (arm)
origin of the Biceps Brachii
humerus and scapula
insertion of the Biceps Brachii
radius
function of the Biceps Brachii
flexes forearm
origin of the external oblique
lower ribs
insertion of the external oblique
ilium
function of the external oblique
when using both sides: compress abdominal viscera (organs), bend/flex the thorax forward
when using one side: bend to one side
origin of the rectus abdominis
pubis bone
insertion of the rectus abdominis
xiphoid process of the sternum and costal cartilage of the ribs
function of the rectus abdominis
when using both sides: compress abdominal viscera (organs), bend/flex the thorax forward
when using one side: bend to one side
Origin of the Sartorius
ilium
insertion of the Sartorius
tibia
function of the Sartorius
flex lower leg, flex thigh