Lab 8 OIA

Triceps Brachii

Origin: Scapula

Insertion: Ulna

Action: Extends forearm

Biceps Brachii

Origin: Scapula

Insertion: Radius

Action: Flexes forearm

Brachioradialis

Origin: Humerus

Insertion: Radius

Action: Flexes forearm (beer raising)

Brachialis

Origin: Humerus

Insertion: Ulna

Action: Flexes forearm

Flexors of wrist?

• Flexor carpi ulnaris

• flexor carpi radialis

• palmaris longus

extensors of wrist

• extensor carpi radialis longus

• extensor carpi radialis brevis

• extensor carpi ulnaris

Flexors of digits

flexor digitorum

flexor policies

extensor of digits

extensor digitorum

extensor policies

Hip abductors

• tensor fasciae latae

• sartorius

• gluteus maximus

• gluteus Medius

Hip adductors

• gracilis

• pectineus

• adductor brevis

• adductor magnus

• adductor longus

vastus lateralis

Origin: femur

Insertion: tibia + patella

Action: extend knee

vastus medialis

Origin: femur

Insertion: tibia + patella

Action: extend knee

vastus intermedius

Origin: Femur

Insertion: tibia + patella

Action: extends knee

rectus femoris

Origin: os coxa

Insertion: tibia + patella

Action: extends knee/ flexes hip

gluteus maximus

Origin: os coxa

Insertion: femur

Action: thigh exntension

gluteus medius

Origin: os coxa

Insertion: femur

Action: hip abduction

biceps femoris

Origin: Os coxa

Insertion: tibia

Action: flexes knee

semimembranosus

Origin: os coxa

Insertion: tibia

Action: flexes knee

semitendinosus

Origin: Os coxa

Insertion: tibia

Action: flexes knee

Tibialis Anterior

Origin: Tibia

Insertion: Tarsals + metatarsals

Action: dorsiflexion

extensor digitorum longus

Origin: Tibia

Insertion: phalanges

Action: extends toes

gastrocnemius

Origin: Femur

Insertion: calcaneus

Action: plantar flexion

Soleus

Origin: Tibia

Insertion: calcaneus

Action: plantar flexion

Tibialis Posterior

Origin: Tibia

Insertion: Tarsals

Action: foot inversion