axial skeleton
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82 Terms
what muscle is this?
levator labbi superioris
What is A-C known as
Epicranius
What is this?
frontal belly
What is this?
occipital belly
What is this?
epicranial aponeurosis
what is the action of the epicranial aponeurosis?
controls facial expression
what is this muscle?
obicularis oculi
what is the action of obicularis oculi?
close the eyelids and assist with pumping out tears
what is this muscle?
orbicularis oris
what is the action of orbicularis oris?
movement of the mouth and lips
what muscle is this?
buccinator
what muscle is this?
zygomaticus major
what muscle is this?
zygomaticus minor
what is the function of the zygomaticus major and minor?
elevates and adverts angle of mouth
what muscle is this?
depressor labbi inferioris
what is the action of depressor labbi inferioris?
helps depress lower lip
what is the action of levator labbi superioris?
elavates upper lip
what muscle is this?
temporalis
what is the function of temporalis?
facilitate the act of mastification
what muscle is this?
masseter
function of masseter
moves jaw to help chew
what muscle is this?
platysma
what muscle is this?
sternoclydomastoid
action of sternocleidomastoid
flexes neck and rotates head
what is the origin of the sternocleidomastoid?
manubrios of sternum and clavicle
what is the insertion of the sternocleidomastoid?
mastoid process of skull
what muscle is this?
dignastric
what muscle is this?
Mylohyoid
what muscle is this?
sternohyoid
what muscle is this?
external intercostals
what muscle is this?
internal intercostals
action of external intercostals
elevate ribs during inhalation
action of internal intercostals
depress ribs during exhalation
action of internal intercostals
depress ribs during exhalation
what is this?
diaphragm
action of diaphragm
pulls air into and out of lungs
what muscle is this?
pectoralis major
insertion of pectoralis major
greater tubercle of humerus
origin of pectoralis major
clavicle, sternum, ribs
what muscle is this?
seratus anterior
action of seratus anterior
protracts scapula and holds it against thoracic wall; rotates scapula
what muscle is this?
deltoid
action of deltoid
abducts arm
origin of deltoid
clavicle, acromion, spine of scapula
insertion of deltoid
deltoid tuberosity of humerus
what muscle is this?
external oblique
what muscle is this?
internal oblique
function of external obliques
help rotate the trunk
function of internal obliques
flexes trunk and compresses abdomen
what muscle is this?
trans versus a dominos
what muscle is this?
rectus abdominis
function of the rectus abdominis
move the body between the ribcage and the pelvis
origin of rectus abdominis
public symphysis and pubic crest
insertion of rectus abdominis
xiphoid process and costal cartilages of ribs 5-7
what is this?
linea alba
what type of connective tissue is linea alba made of?
collagen and elastin fibrous
what muscle is this?
trapezius
what part of the trapezius is this?
descending trapezius
what part of the trapezius is this?
middle trapezius
what part of the trapezius is this?
ascending trapezius
fuction of descending trapezius
elevate and uppardly rotate scapula
fuction of middle trapezius
adduct scapula
fuction of ascending trapezius
depress and upwardly rotate scapula
what muscle is this?
lattismus dorsi
action of lattisimus dorsi
adduct, medially rotate, and extend the arm at the glenohumeral joint
what muscle is this?
supraspinatus
what muscle is this?
infraspinatus
what muscle is this?
subscapularis
what muscle is this?
teres minor
what muscle is this?
teres major
what muscles are these
rhomboids (major and minor)
what muscle is this?
erector spinae
action of erector spinae
back and head extension
what muscle is this?
ilicostalis lumborum
what is this
cerci is lliocostalis
what is this
thoracic lliocostalis
what is this
capitis longissimus
what is this?
longissimus thoracis
what is this
longissimus cervicis
what is this
spinalis thoracis
what is this
spinalis cervicis
what is this
multifidus