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Anatomy Lab

Muscles Origin/ Insertion/Action

TermDefinition
sternocleidomastoid o: sternum, clavicle i: mastoid process a: tilts head side to side, rotate head
orbicularis oculi a: close eyelids
orbicularis oris a: compress, protrude lips
levator labii superioris a: elevate upper lip
depressor labii inferioris A:pulls lower lip inferiorly & laterally
levator anguli oris a: elveate angle of mouth
depressor anguli oris pulls angle of mouth down & laterally
temporalis o: lateral surface of cranium i: coronoid process of mandible a: elevate, retract, laterally move mandible
masseter o:zygomatic arch i: mandible a: elevate protrude mandible
trapezius a: retract, rotate, stabilize, depression, elevate scapula
rhomboid major a: aDduct scapula
rhomboid minorr a: adduct scapula
levator scapulae a: elevate scapula
teres major a: extend should, medially rotate, adduct arm
serratus anterior a: protract & rotate scapula upward
latissimus dorsi a: extend shoulder adduct & medially rotate arm
pectoralis major a: flex adduct shoulder; medially rotate arm
pectoralis minor depress scapula; rotate glenoid cavity inferiorly
deltoid o: clavicle, acromion, scapular spine i: deltoid tuberosity a: extend & flex shoulder, abduct arm
bicep brachii o long: upper lipof glenoid cavity o short: tip of coracoid process i: radial tuberosity a: flex elbow & shoulder, supinate forearm & hand
coracobrachialis o: coracoid process i: shaft humerus a: flex shoulder; adduct arm
brachialis o: humerus shaft i: ulnar tuberosity a: flex elbow
triceps brachii o long: lower lip of glenoid cavity o lateral: prox. posterolateral humerus shaft o medial: prox posteromedial shaft of humerus i: olecranon a: extend elbow; extend shoulder; adduct arm
supraspinatus o: supraspinous fossa i: greater tuberosity a: abduct arm
infraspinatus o: infraspinous fossa i: greater tuberosity a: laterally roate arm
subscapularis o:subscapular fossa i: less tuberosity a: medially rotate arm
teres minor o: lateral border of scapula i: greater tuberosity a: laterally rotate arm
brachioradialis a: flex elbow
flexor carpi radialis a: flex wrist; abduct hand
flexor carpi ulnaris a: flex wrist; adduct hand
flexor digitorum superficialis a: flex digits
flexor digitorum profundus a: flex digits
flexor pollicis longus a: flex thumb
palmaris longus a: flex wrist
pronator quadratus a: pronate forearm & hand
pronator teres a: pronate forearm & hand
supinator a: supinate forearm & hand
extensor carpi raadialis a: extend wrist; abduct hand
extensor carpi ulnaris a: extend wrist adduct hand
extensor digitorum extend digit
extensor digiti mini extend 5 digit
extensor indicis extend 2nd digit
abductor pollicis longus abduct pollicis
extensor pollicis brevis extend pollicis
extensor pollicis longus extend pollicis
psoas major o: transvers processes of l1-l5
illiacus o: iliac fossa
iliopsoas i: lesser trochanter a: flex hip; laterally rotate thight
gluteus maximus o: gluteal surface & sacrum i: iliotibial tract & gluteal tuberosity a: extend hip; laterally rotate thigh
gluteus medius o: gluteal surface i: greater trochanter a: abduct thigh; medially rotate thigh
gluteus minimus o: gluteal surface i: greater trochanter a: abduct thigh; medially rotate thigh
tensor fasciae latae o: anterior superior iliac spine i: iliotibialtract a: tenses iliotibial tract (fascia lata); flex hip; abductt thigh
sartorius o: anterior supoerior iliac spine i: medial side of tibial tuberosity a: flex hip; abduct laterally roate thigh; flex knee
adductor adduct thigh
gracilis a: flex hip; adduct thigh; flex knee; medially rotate leg
rectus femoris o: anterior inferior iliac spine i:tibial tuberosity a: flex hip; extend knee
vastus medialis o: linea aspera i: medial side of tibial tuberosity a: extend knee
vastus lateralis o: linea apsera i: lateral side of tibial tuberosity a: extend knee
vastus intermedius o: linea aspera i: tibial tuberosity a: extend knee
semimembranosus o:ischial tuberosity i: posterior to medial condle of tibia a: extend hip; flex knee
semitendinosus o: ischial tuberosity i: medial side of tibial tuberosity a: extend hip; flex knee
bicep femoris o long: ischial tuberosity o short: linea aspera i: head of fibula a long: extend hip; flex knee a short: flex knee
tibialis anterior a: dorsiflex ankle; invert foot
extensor hallucis longus a:dorsiflex foot; extend hallucis
extensor digitorum longus dorsiflex foot; extend digits; evert foot
fibularis longus plantar flex; evert foot
fibularis brevis plantar flex; evert foot
gastrocnemius plantar flex; flex knee
soleus plantar flex
plantaris flex knee; plantar flex plantaris tendon
popliteus flex knee; medially rotate leg
tibialis posterior plantar flex; invert foot
flexor hallucis longus plantar flex; invert foot; plantar flex hallucis
flexor digitorum longus plantar flex; invert foot; plantar flex digits
Created by: cs3516