Unit 2 And Unit 3

Front 1

Origin of Pectoralis Major?

Back 1

Ventral surface of the sternum
down to the 7th rib, sternal 1/2 of clavicle, cartilage of true ribs and aponerosis of the external oblique muscle.

Front 2

Insertion of Pectoralis Major?

Back 2

Lateral lip of the intertubercular goove of the humerus.

Front 3

Action of Pectoralis Major?

Back 3

Adducts and medially rotates arm,
clavicular head flexes humerus, sternal head extends humerus, and with insertion fixed it assists in elevation of the thorax

Front 4

Innervation of Pectoralis Major?

Back 4

Medial and lateral pectoral nerves ( c5-c8, t1)

Front 5

Origin of Biceps Brachii, long head?

Back 5

Supraglenoid tubercle of scapula

Front 6

Insertion of Biceps Brachii, long head?

Back 6

Radial tuberosity and into aponerosis of flexor muscles of lower arm.

Front 7

Action of Biceps Brachii, long head?

Back 7

Flexes and supinates the forearm.

Front 8

Innervation of Biceps Brachii, long head?

Back 8

Musculocutaneous N ( c5, c6)

Front 9

Origin of Coracobrachialis M?

Back 9

Tip of coracoid process of scapula

Front 10

Insertion of Coracobrachialis M?

Back 10

Anteromedial surface of the middle of the humerus shaft opposite the deltoid tuberosity

Front 11

Action of Coracobrachialis M?

Back 11

Flexion and adduction of the humerus

Front 12

Innervation of Coracobrachialis M?

Back 12

Musculocutaneous nerve ( c5-c7)

Front 13

Origin of Brachialis?

Back 13

Distal half of the anterior surface of the humerus

Front 14

Insertion of Brachialis?

Back 14

Coronoid process and tuberosity of ulna

Front 15

Action of Brachialis?

Back 15

flexes elbow

Front 16

Innervation of Brachialis?

Back 16

Musculocutaneous and radial nerves (c5,c6)

Front 17

Origin of Brachioradialis M?

Back 17

Proximal 2/3 of lateral supracondylar ridge of humerus.

Front 18

Insertion of Brachioradialis M?

Back 18

Lateral side of the base of the styloid process of radius

Front 19

Action of Brachioradialis M?

Back 19

Flexes elbow. Assists in pronation and supination of the forearm to the midposition.

Front 20

Innervation of Brachioradialis M?

Back 20

Radial nerve (c5, c6)

Front 21

Origin of Triceps Brachii?

Back 21

Long head- infraglnoid tubercle of the scapula
Medial head- distal 2/3 of medial and posterior surfaces of the humerus
Lateral head- upper half of posterior surface of humerus

Front 22

Insertion of Triceps Brachii?

Back 22

posterior surface of olecranon process of ulna

Front 23

Action of Triceps Brachii?

Back 23

extends forearm and the tendon of the long head helps stabilize the shoulder joint

Front 24

Insertion of Triceps Brachii?

Back 24

Radial N (c7,c8)

Front 25

Origin of Pronator Teres?

Back 25

Humeral head- just above the medial epicondle of humerus
Ulnar head- medial side of coronoid process of the ulna

Front 26

Insertion of Pronator Teres?

Back 26

Middle of lateral surface of radius

Front 27

Action of Pronator Teres?

Back 27

Pronates the forearm and assists in flexing the elbow joint

Front 28

Innervation of Pronator Teres?

Back 28

Median N (c6,c7)

Front 29

Origin of Pronator Quadratus?

Back 29

Medial side of anterior surface of distal 1/4 of ulna

Front 30

Insertion of Pronator Quadratus?

Back 30

Lateral side of distal 1/4 of radius

Front 31

Action of Pronator Quadratus?

Back 31

Pronation of forearm

Front 32

Innervation of Pronator Quadratus?

Back 32

Anterior interosseous branch of median N (c8,T1)

Front 33

Origin of Abductor Digiti Minimi?

Back 33

Pisiform bone and tendon of flexor capri ulnaris

Front 34

Insertion of Abductor Digiti Minimi?

Back 34

Medial side of base of proximal phalanx of 5th digit

Front 35

Action of Abductor Digiti Minimi?

Back 35

Abducts 5th finer

Front 36

Innervation of Digiti Minimi?

Back 36

Ulnar N (c8,T1)

Front 37

Origin of Opponens Pollicis?

Back 37

Retinaculum (transverse carpal ligamet) and trapezium bone

Front 38

Insertion of Opponens Pollicis?

Back 38

Anterior surface on the radial side of 1st metacarpal bone

Front 39

Action of Opponens Pollicis?

Back 39

Rotates thumb into opposition with fingers, acts together with other muscles of the thenar eminence to oppose thumb to fingers

Front 40

Innervation of Opponens Pollicis?

Back 40

Median N (c6,c7)

Front 41

Origin of Rectus Femoris M?

Back 41

Anterior head- anterior inferior iliac spine
Posterior head- upper margin of the acetabulum

Front 42

Insertion of Rectus Femoris M?

Back 42

Patella and by the patella ligament to the tibial tuberosity

Front 43

Action of Rectus Femoris M?

Back 43

Extends the leg at the knee and flexes the thigh at hip joint

Front 44

Innervation of Rectus Femoris M?

Back 44

Femoral N ( L2-L4)

Front 45

Origin of Vastus Medialis?

Back 45

Lower 1/2 of intertrochanteric line, linea aspera, medial supracondylar line, and medial intermuscular septum

Front 46

Insertion of Vastus Medialis?

Back 46

Medial border of patella and then by the patella ligament to the tibial tuberosity

Front 47

Action of Vastus Medialis?

Back 47

Extends the leg at the knee joint and draws patella medially

Front 48

Innervation of Vastus Medialis?

Back 48

Femoral N ( L2-L4)

Front 49

Origin of Adductor Longus M?

Back 49

Anterior body of pubis

Front 50

Insertion of Adductor Longus M?

Back 50

Medial 1/3 of medial lip of linea aspera of femur

Front 51

Action of Adductor Longus M?

Back 51

Adducts and flexes thigh. Assists in medial rotation.

Front 52

Innervation of Adductor Longus M?

Back 52

Obturator N (L3, L4)

Front 53

Origin of Pectineus M?

Back 53

Pectineal line on superior ramus of pubis

Front 54

Insertion of Pectineus M?

Back 54

From lesser trochanter to linea aspera of femur

Front 55

Action of Pectineus M?

Back 55

Flexes femur at hip and assists in adduction of femur at hip

Front 56

Innervation of Pectineus M?

Back 56

Femoral N ( L2-L4)

Front 57

Origin of Tibialis Anterior?

Back 57

Lateral condyle and proximal 1/2 of lateral surface of the tibia and interosseous border

Front 58

Insertion of Tibialis Anterior?

Back 58

Medial plantar surface of 1st cuneiform bone and base of 1st metatarsal bone

Front 59

Action of Tibialis Anterior?

Back 59

Dorsiflexion of foot at the ankle joint and inversion of foot

Front 60

Innervation of Tibialis Anterior?

Back 60

Deep peroneal N (L4-S1)

Front 61

Origin of Semitendinosus M?

Back 61

Ischial Tuberosity

Front 62

Insertion of Semitendinosus M?

Back 62

Upper medial surface of shaft of tibia

Front 63

Action of Semitendinosus M?

Back 63

Flexes and slightly medially rotates leg at knee joint, and extends thigh at hip joint

Front 64

Innervation of Semitendinosus M?

Back 64

Tibial portion of sciatic N ( L5-S2)

Front 65

Origin of Peroneus (fibularis) brevis M?

Back 65

Lower 2/3 of lateral surface of fibula

Front 66

Insertion of Peroneus (fibularis) brevis M?

Back 66

Lateral side of base of 5th metatarsal bone

Front 67

Action of Peroneus (fibularis) brevis M?

Back 67

Plantar flexion and eversion of foot

Front 68

Innervation of Peroneus (fibularis) brevis M?

Back 68

Superficial peroneal N ( L4-S1)

Front 69

Origin of Plantaris M?

Back 69

Lateral supracondylar ridge of femur and oblique popliteal ligament

Front 70

Insertion of Plantaris M?

Back 70

posterior surface of calcaneous, may be part of Achilles tendon or separate

Front 71

Action of Plantaris M?

Back 71

Plantar flexion of foot

Front 72

Innervation of Plantaris M?

Back 72

Tibial N ( L4-S1)

Front 73

Origin of Tibialis Posterior?

Back 73

Lateral part of posterior surface of tibia, interoseous membrane and proximal 1/2 of posterior surface of fibula

Front 74

Insertion of Tibialis Posterior?

Back 74

Tuberosity of navicular bone, cuboid, cuneiforms, 2nd, 3rd, and 4th metatarsals and calcaneus

Front 75

Action of Tibialis Posterior?

Back 75

Plantar flexion and inversion of foot

Front 76

Innervation of Tibialis Posterior?

Back 76

Tibial N ( L5, S1)

Front 77

Origin of Abductor Hallucis?

Back 77

Tuberosity of calcaneous, flexor retinaculum and plantar aponerosis

Front 78

Insertion of Abductor Hallucis?

Back 78

Medial side of base of proximal phalanx of big toe

Front 79

Action of Abductor Hallucis?

Back 79

Abducts and assists in flexion at the metatarsophalangeal joint of big toe

Front 80

Innervation of Abductor Hallucis?

Back 80

Medial plantar N ( L4, L5)

Front 81

Origin of Lumbricales MM??

Back 81

Tendons of flexor digitorum longus

Front 82

Insertion of Lumbricales MM??

Back 82

Dorsal surfaces of proximal phalanges

Front 83

Action of Lumbricales MM??

Back 83

Flexion of 2nd through 5th toes at the metatarsophalangeal joint

Front 84

Innervation of Lumbricales MM??

Back 84

1st lumbricalis- medial plantar N (L4, L5)
2nd through 5th lumbricales- lateral plantar N (S1,S2)

Front 85

Origin of Flexor Digiti Minimi Brevis?

Back 85

Base of the 5th metatarsal bone and sheath of peroneus longus tendon

Front 86

Insertion of Flexor Digiti Minimi Brevis?

Back 86

Lateral side of base of proximal phalanx of 5th toe

Front 87

Action of Flexor Digiti Minimi Brevis?

Back 87

Flexion of proximal phalanx of 5th toe

Front 88

Innervation of Flexor Digiti Minimi Brevis?

Back 88

Lateral plantar N (S1, S2)