Anatomy And Physiology I Origins, Insertions, Actions Of Forearm, Thigh And Leg Muscles

Front 1

Triceps Brachii Origin of Long Head

Back 1

glenoid cavity

Front 2

Triceps Brachii Insertion of Long Head

Back 2

Olecranon process of ulna

Front 3

Triceps Brachii Action

Back 3

Extends forearm

Front 4

Triceps Brachii lateral head origin

Back 4

Posterior side of the humerus

Front 5

Triceps Brachii lateral head insertion

Back 5

Olecranon process of ulna

Front 6

Triceps Brachii medial head origin

Back 6

Distal radial groove of humerus

Front 7

Triceps Brachii medial head insertion

Back 7

Olecranon process of the ulna

Front 8

Biceps brachii long head origin

Back 8

tubercle superior to glenoid cavity

Front 9

Biceps brachii long head insertion

Back 9

Radial tuberosity

Front 10

Biceps brachii short head origin

Back 10

coracoid process

Front 11

Biceps brachii short head insertion

Back 11

Radial tuberosity

Front 12

Biceps Brachii Action

Back 12

flexes forearm

Front 13

Palmaris Longus Origin

Back 13

Medial Epicondyle of the Humerus

Front 14

Palmaris Longus Insertion

Back 14

fascia and skin of the palm

Front 15

Palmaris Longus Action

Back 15

flexes hand and tenses skin of palm

Front 16

Extensor digitorum Origin

Back 16

Lateral Epicondyle of Humerus

Front 17

Extensor Digitorum Insertion

Back 17

distal phalanges 2-5

Front 18

Extensor Digitorum Action

Back 18

Extends the digits of the hand

Front 19

Rectus Femoris Origin

Back 19

Anterior inferior iliac spine; superior margin of acetabulum

Front 20

Rectus Femoris Insertion

Back 20

Tibial tuberosity and patella

Front 21

Rectus femoris Action

Back 21

Extends thigh at knee; Flexes thigh at hip

Front 22

Gracilis Origin

Back 22

Inferior ramus and body of the pubis

Front 23

Gracilis Insertion

Back 23

Medial surface of tibia

Front 24

Gracilis Action

Back 24

Adducts thigh at hip; Flexes and medially rotates the leg

Front 25

Vastus Lateralis Origin

Back 25

Greater trochanter; intertrochanteric line and linea aspera

Front 26

Vastus Lateralis Insertion

Back 26

tibial tuberosity and patella

Front 27

Vastus Lateralis Action

Back 27

Extends thigh at knee

Front 28

Adductor Longus Origin

Back 28

pubis near pubic symphysis

Front 29

Adductor Longus Insertion

Back 29

linea aspera

Front 30

Adductor Longus Action

Back 30

Adducts, flexes, and medially rotates thigh at hip

Front 31

Gluteus Maximus Origin

Back 31

Posterior side of ilium, sacrum and coccyx

Front 32

Gluteus Maximus Insertion

Back 32

gluteal tuberosity of femur; iliotibial tract

Front 33

Gluteus Maximus Action

Back 33

extends thigh when elevated; laterally rotates and abducts thigh

Front 34

Semimembranosus Origin

Back 34

Ischial tuberosity

Front 35

Semimembranosus Insertion

Back 35

medial condyle of tibia; lateral condyle of femur

Front 36

Semimembranosus Action

Back 36

Extends thigh at hip; flexes thigh at knee; medially rotates leg

Front 37

Tibialis Anterior Origin

Back 37

Lateral condyle and superior shaft of tibia

Front 38

Tibialis Anterior Insertion

Back 38

by a tendon onto cuneiform and first metatarsal

Front 39

Tibialis Anterior Action

Back 39

Dorsiflexion, inverts foot, supports arch

Front 40

Gastrocnemius Origin

Back 40

Two heads: medial and lateral condyles of the femur

Front 41

Gastrocnemius Insertion

Back 41

Calcaneus by the way of the calcaneal tendon

Front 42

Gastrocnemius Action

Back 42

Flexes foot when knee is extended; flexes leg at knee

Front 43

Popliteus Origin

Back 43

Lateral condyle of femur

Front 44

Popliteus Insertion

Back 44

Proximal end of tibia

Front 45

Popliteus Action

Back 45

flexes and rotates leg medially

Front 46

Flexor Hallucus Longus Origin

Back 46

shaft of fibula

Front 47

Flexor Hallucus Longus Insertion

Back 47

distal phalanx of first digit

Front 48

Flexor Hallucus Longus Action

Back 48

flexes first digit; inverts foot