Muscles Movements & Actions

Muscle Movements

100

Bending a joint (such as your knee) - making the angle between two bones smaller

flexion

200

movement of a bone around its LONGITUDINAL axis.Ex: shaking your head "no" from side to side

rotation

300

DOUBLE $$$ ---- movement of a limb towards the midline of the bodyEx: bringing your arms closer to your body

Adduction

400

A special form of rotation--turning your palm so that it faces in towards your body (thumbs in, next to your body)

pronation

500

lifting your toes up off the ground towards your head while heel stays on ground

dorsiflexion

600

Turning the soles of you feet laterally

eversion

Head

100

closes the eye

orbicularis oculi 

200

elevates the mandible to close mouth

masseter

300

thin muscle that helps lower mandible, also pulls corner of mouth down when you frown

platysma

400

laterally located muscle that depresses (lowers) hyoid bone

omohyoid

500

 DOUBLE $$$----Main muscle that lowers the mandible

digastric

600

medial muscle that depresses hyoid bone

sternohyoid

Hip & Shoulder

100

Name 2 muscles that flex shoulder

Pectoralis major, biceps brachii, anterior deltoid

200

Name 2 muscles that ABduct @ shoulder

supraspinatus, middle deltoid

300

Name 4 muscles that flex @ hip

iliacus, psoas major, tensor fasciae latae, sartorius, pectineus, adductor longus, adductor magnus, rectus femoris (not gracilis-it flexes at knee)

400

Name one muscle that extends the spine (vertebral column)

longissimus thoracis, iliocostalis thoracis

500

Name 2 muscles that laterally rotate shoulder

Infraspinatus, teres minor

600

DOUBLE $$$---- set of 3 muscles that elevate ribs & flex @ neck

scalenes

Arm

100

DOUBLE $$$$$$$--- extends @ elbow, extends @ shoulder, adducts @ shoulder

triceps brachii

200

DOUBLE $$$----upper arm muscle that only flexes @ elbow

brachialis

300

Name the 2 forearm muscles that rotate your forearm to be positioned thumbs out and thumbs in. Their names indicate their movements.

supinator and pronator

400

extends @ interphalangeal joints of 3 middle fingers

extensor digitorum

500

flexes wrist and ABducts @ wrist

flexor carpi radialis

600

Name the 2 muscles that extend and ABduct @ wrist

extensor carpi radialis brevis, extensor carpi radialis longus

Leg

100

flexes @ hip, flexes @ knee, laterally rotates @ hip

sartorius

200

Name 2 muscles that flex @ hip and adduct @ hip

pectineus, adductor longus, adductor magnus (not gracilis-it adducts at hip but flexes at knee)

300

name 4 muscles that extend at knee, and state which one also flexes @ hip

Quadriceps Group (rectus femoris (extends @ knee + flexes @ hip), vastus lateralis, vastus medialis, vastus intermedius)

400

Name 2 muscles that ABduct @ hip

Tensor fasciae latae + gluteus medius

500

4 muscles that extend @ hip

gluteus maximus, biceps femoris, semitendinosus, semimembranosus

600

DOUBLE $$$----name muscle that laterally rotates @ hip, and muscle that medially rotates @ hip

Sartorius + Piriformis --laterally rotate

gluteus medius -----medially rotates @hip