bio 108 LP#2 muscular compartments, and functional group muscles

biceps brachii

brachialis

coracobrachialis

ARM anterior compartment

flexion of arm

flexion of forearm

Deltoid

ARM Lateral compartment

abduction of arm-acromion

Flexion of arm-clavo

Extension of arm-spino

Triceps brachii

ARM Posterior compartment

Extension of forearm

extensionn of arm

Layer 1 (superficial)

pronator teres

flexor carpi radialis

palmaris longus

flexor carpi ulnaris

FOREARM anterior compartment

flexion of hand at wrist

flexion of digits

pronation of forearm

layer 2

flexor digitorum superficialis

FOREARM anterior compartment

flexion of hand at wrist

flexion of digits

pronation of forearm

layer 3

flexor digitorum profundus

flexor pollicis longus

FOREARM anterior compartment

flexion of hand at wrist

flexion of digits

pronation of forearm

layer 4

pronator quadratus

FOREARM anterior compartment

flexion of hand at wrist

flexion of digits

pronation of forearm

layer 1 (superficial)

Brachioradialis

extensor carpi radialis longus

extensor carpi radialis brevis

extensor digitorum

extensor digiti minimi

extensor carpi ulnaris

anconeus

FOREARM posterior compartment

extension of hand at wrist

extension of digits

supination of forearm

brachioradialis - flexes the forearm

anconeus- extends the forearm

brachioradialis

FOREARM posterior compartment

extension of hand at wrist

extension of digits

supination of forearm

flexes the forearm

anconeus

FOREARM posterior compartment

extension of hand at wrist

extension of digits

supination of forearm

extends the forearm

layer 2

supinator

abductor pollicis longus

extensor pollicis brevis

extensor pollicis longus

extensor indicis

FOREARM posterior compartment

extension of hand at wrist

extension of digits

supination of forearm

abductor pollicis longus - abducts the thumb

Pectineus

adductor longus

adductor brevis

adductor magnus

gracilis

THIGH medial compartment

adduction of thigh

Quadriceps

THIGH anterior compartment

rectus femoris

vastus lateralis

vastus medialis

vastus intermedius

Quadriceps

THIGH Anterior compartment

extension of leg at knee

Rectus femoris

Extension of leg at knee

Flexion of thigh at hip

Satorius

THIGH anterior compartment

longest muscle in the human body

flexion and abduction of thigh

flexion of leg

Hamstrings

THIGH posterior compartment

semitendinosus

semimembranosus

Biceps femoris

short head

long head

hamstrings

THIGH posterior compartment

Flexion of leg at knee

Extension of thigh (all but short head of bicep femoris)

Gluteus medius

Gluteus minimus

THIGH Lateral compartment

Abduction of thigh

Tibialis anterior

Extensor digitorum longus

Extensor hallucis

Peroneus tertius

LEG anterior compartment

Dorsiflexion of foot,

extension of digits

tibialis anterior: also inverts the foot

Peroneus tertius: also everts the foot

Tibialis anterior

LEG anterior compartment

Dorsiflexion of foot,

extension of digits

inverts the foot

superficial:

gastrocnemius

plantaris

soleus

LEG Posterior compartment

Plantarflexion of foot

flexion of digits

Deep

flexor digitorum longus

flexor hallucis longus

tibialis posterior

popliteus

LEG posterior compartment

plantar flexion of foot

flexion of digits

flexor digitorum longus, flex digits 2-5

flexor hallucis longus, flex hallucis

popliteus, rotates the tibia medially at the start of flexion

tibialis posterior, inverts the foot

flexor digitorum longus

LEG posterior compartment

plantar flexion of foot

flex digits 2-5

flexor hallucis longus

LEG posterior compartment

plantar flexion of foot

flex hallucis

tibialis posterior

LEG posterior compartment

plantar flexion of foot

inverts the foot

Popliteus

LEG posterior compartment

plantar flexion of foot

rotates the tibia medially at the start of flexion

tibialis posterior, inverts the foot

peroneus longus (fibularis longus)

peroneus brevis (fibularis brevis)

LEG lateral compartment

plantar flexion and eversion of foot

Deep gluteal group

(piriformis,

obturator internus/externus,

gemelli,

quadratus femoris),

gluteus maximus

Lateral rotation of thigh

Iliopsoas (psoas major + iliacus),

rectus femoris,

sartorius,

tensor fasciae latae,

pectineus

Flexion of thigh

piriformis

Gemelli

obturator internus

Quadratus femoris

deep lateral rotators of the hip

rotates the femur outward

gluteus maximus

hamstrings

extension of thigh

gluteus medius

gluteus minimus

sits on outer surface of pelvis

abduction of thigh

rotator cuff muscles

supraspinatus,

infraspinatus,

teres minor,

subscapularis

subscapularis

the only rotator cuff muscle that inserts onto less tubercle of humerus

internal rotation of the arm