click below
click below
Normal Size Small Size show me how
A&P lab exam II
muscle & action
Question | Answer |
---|---|
masseter | closes jaw, elevates mandible |
temporalis | closes jaw, elevates & retracts mandible |
orbicularis oculi | closes eye, blinkin, squinting |
orbicularis oris | closes mouth, purses & protrudes lips |
sternocleidomastoid | both sides together -> neck flexion acting independently -> rotates head toward opposite shoulder |
trapezius | elevate, medially rotate, retract, depress scapula |
deltoid | princliple abductor of the arm |
latissimus dorsi | extend, adduct, medially rotate arm |
suprasinatus | initiate abduction of arm |
infraspinatus | laterally rotate arm |
teres minor | laterally rotate arm |
teres major | medially rotate, adduct, extend arm |
subscapularis | medially rotate arm |
rhomboideus minor | retract, elevate, laterally rotate scapula |
rhomoideus major | retract elevate laterally rotate scapula |
erector spinae | exten vertebral column |
external oblique | flex & rotate vertebral column, increase abdominal pressure |
internal oblique | flex & rotate vertebral column, increase abdominal pressure |
rectus abdominus | flex & rotate vertebral column, increase abdominal pressure |
transversus abdominus | increase abdominal pressure |
pectoralis major | flex, adduct, medially rotate arm |
pectoralis minor | depress, protract, laterally rotate scpula |
serratus anterior | protract scapula (prevents winging) |
coracobrachialis | flex shoulder |
biceps brachii | flex elbow, supinate forearm |
brachialis | flex elbow |
brachioradialis | flex elbow |
triceps brachii | extend elbow |
anterior compartment of forearm | flex & pronate wrist & hand |
posterior compartment of forearm | extend & supinate wrist & hand |
gluteus maximus | extends, laterally rotates, adbucts thigh |
sartorius | flex, abduct thigh, flex knee |
gracilis | adduct thigh flex knee |
biceps femoris | extend thigh flex knee |
semimembranosus | extend thigh flex knee |
semitendinosus | extend thigh flex knee |
rectus femoris | extend knee, flex thigh |
vastus lateralis, medialis, & intermedius | extend knee |
gastrocnemius | platarflex foot |
soleus | plantarflex foot |
tibialis anterior | dorsiflex foot |