Muscles & actions Flashcards
orbicularis oculi
closes eyes
orbicularis oris
- closes mouth
- protrudes lips
masseter
- closes jaw
- elevates mandible
temporalis
- closes jaw
- elevates mandible
pectoralis major
flexes, adducts, & medially rotates the arm at the shoulder
brachioradialis
flexes the forearm at the elbow
pronator teres
pronates the forearm at the proximal-radio ulnar joint
flexor carpi radialis
- flexes the hand at the wrist
- abducts (radial deviation) the hand at the wrist
flexor carpi ulnaris
- flexes the hand at the wrist
- adducts (ulnar deviation) the hand at the wrist
flexor digitorum superficialis
flexes the wrist & middle phalanges of 2nd-5th digits
extensor digitorum
extends the digits & the hand at the wrist
supinator
supinates the forearm at the proximal-radio ulnar joint
psoas major
- flexes the thigh at the hip
- flexes the trunk if lower extremity remains on floor
iliacus
flexes the thigh at the hip
gluteus maximus
extends & laterally rotates the thigh at the hip
gluteus medius
abducts the thigh
vastus lateralis
extends the leg at the knee
vastus medialis
extends the leg at the knee
vastus intermedius
extends the leg at the knee