Muscles and their functions Flashcards
Temporalis
elevates mandible
sternocleidomastoid
flexes the neck, lateral flexion of neck, rotation of neck
orbicularis oculi
closes the eye
masseter
elevates the mandible
orbicularis oris
purse and compresses the lips
pectoralis major
flexion and adduction at the shoulder
Rectus abdominis
flexes vertebral column, depresses ribs, compresses abdomen
external and internal oblique
lateral flexion of vertebral column, rotation of the trunk
Internal intercostals
depress ribs during exhalation
external intercostals
elevate ribs to inhale
pectoralis minor
depresses scapula, elevates ribs
pectoralis minor
depresses scapula, elevates ribs
rhomboids
adduction, retraction of scapulae
trapezius
elevates, adducts, depresses, scapulae, & elevates clavical
latissimus dorsi
adduction, extension of arm at shoulder
deltoid
abduction at shoulder
biceps brachii
flexion of arm at elbow
brachioradialis
flexion of arm at elbow
wrist and finger extensors
extension at wrist and finger extensors
triceps brachii
extension of arm @ elbow
wrist and finger flexors
flexion @ wrist and finger flexion
Adductor group
adduction of thigh at hip
sartorius
flexion at hip and knee, lateral rotation and abduction of hip
gluteus medius
abduction and medial rotation of thigh at the hip