Muscles A&p 1

Front 1

Head: Orbicularis Oris

Back 1

Origin: Various facial muscles
Insertion: Lips
Action: Close lips

Front 2

Head: Orbicularis Oculi

Back 2

Origin: Nasal Portion of frontal bone
Insertion: Eyelids
Action: Blinking

Front 3

Head: Temporalis

Back 3

Origin: Temporal fossa
Insertion: Coronoid process of mandible
Action: Elevates Jaw

Front 4

Head: Masseter

Back 4

Origin: Zygomatic Arch
Insertion: Angle and ramus of mandible
Action: Elevates Jaw

Front 5

Neck(Anterior): Sternocleidomastoid

Back 5

Origin: Manubrium& medial end of clavicle
Insertion: Mastoid process of temporal bone
Action: Rotation of head

Front 6

Neck(Anterior): Sternohyoid

Back 6

Origin: Manubirum and clavicle
Insertion: Hyoid
Action: Pulls hyoid down

Front 7

Neck(Anterior): Digastric

Back 7

Origin: Posterior belly-mastoid process, anterior belly-inner surface of mandible
Insertion: Fibrous loop on hyoid bone
Action: Raises Hyoid

Front 8

Neck(Posterior): Tapezius

Back 8

Origin: Occipital Bone
Insertion: Clavicle
Action: hyperextends head

Front 9

Neck(Posterior) : Levator scapulae

Back 9

Origin: 1st-4th cervicle vertebrae
Insertion: Superior angle of Scapula
Action: elevates scapula

Front 10

Neck(Posterior): Splenius group

Back 10

Origin: Ligamentum nuchae
Insertion: Occipital bone and mastoid process
Action: Rotation of head

Front 11

Trunk & Shoulder(Anterior): Pectoralis major

Back 11

Origin: Costal Cartilage
Insertion: Between greater and lesser tubercles of humerous
Action: Adduction of humerus

Front 12

Trunk & Shoulder(Anterior): Pectoralis minor

Back 12

Origin: Ribs 3,4,&5
Insertion: Coracoid process of scapula
Action: Depresses shoulder by drawing scapula downward

Front 13

Trunk & Shoulder(Anterior): Deltoid-Anter/Middl/Post

Back 13

Origin: Clavicle
Insertion: Deltoid tuberosity of humerus
Action: Whole muscle abducts humerus

Front 14

Trunk & Shoulder(Anterior): Serratus Anterior

Back 14

Origin: 1st to 9th ribs
Insertion: Anterior medial border of scapula
Action: pulls scapula downward

Front 15

Trunk & Shoulder(Anterior): External intercostals 11pairs

Back 15

Origin: inferior borders of ribs
Insertion: superior borders of ribs
Action: Elevates ribs (aids in inspiration)

Front 16

Trunk & Shoulder(Anterior): Internal intercostals (11 pairs)

Back 16

Origin: Superior borders of ribs
Insertion: Inferior borders of ribs
Action: Depresses ribs (aids in expiration)

Front 17

Trunk & Shoulder(Anterior): Diaphragm

Back 17

Origin: Inferior border of rib and sternum
Insertion: Central tendon
Action: Inspiration

Front 18

Trunk & Shoulder(Posterior):
Latissimus Dorsi

Back 18

Origin: lumbar and sacral vertebrae
Insertion: Greater tubercle of humerus
Action: medially rotates humerus

Front 19

Trunk & Shoulder(Posterior):
Infraspinatus

Back 19

Origin: Infraspinous fossa of scapula
Insertion: Greater tubercle of humerus
Action: Rotates humerus laterally

Front 20

Trunk & Shoulder(Posterior):
Teres major

Back 20

Origin: Inferior angle of scapula
Insertion: Crest of lesser tubercle of humerus
Action: rotates humerus medially

Front 21

Trunk & Shoulder(Posterior):
Teres minor

Back 21

Origin: Lateral border of scapula
Insertion: Lowest portion of greater tubercle of humerus
Action: Rotates humerus laterally

Front 22

Trunk & Shoulder(Posterior):
Supraspinatus

Back 22

Origin: Supraspinous fossa
Insertion: Greater tubercle of humerus
Action: Abduction of humerus

Front 23

Trunk & Shoulder(Posterior):
Rhomboideus major

Back 23

Origin: Spinous processes of 1st to 5th thoracic vertebrae
Insertion: Medial border of scapula
Action: Adducts scapula

Front 24

Trunk & Shoulder(Posterior):
Rhomboideus minor

Back 24

Origin: Ligamentum nuchae
Insertion: ( root of scapular spine)
Action: Adducts scapula

Front 25

Trunk & Shoulder(Posterior):
Subscapularis

Back 25

Origin: Subscapular fossa
Insertion: Lesser tubercle of humerus
Action: holds head of humerus in glenoid cavity

Front 26

Abdominal Muscles:
Rectus abdominis

Back 26

Origin: Pubic bone
Insertion: Xiphoid process
Action: Compresses abdominal viscera

Front 27

Abdominal Muscles:
External oblique

Back 27

Origin: Lower eight ribs
Insertion: Linea alba
Action: Compresses abdominal viscera

Front 28

Abdominal Muscles:
Internal oblique

Back 28

Origin: iliac crest
Insertion: xiphoid process
Action: Compresses abdominal viscera

Front 29

Abdominal Muscles: Transversus abdominis

Back 29

Origin: iliac crest
Insertion: Linea alba
Action: Compresses abdominal viscera

Front 30

Pelvic Muscles: Quadratus lumborum

Back 30

Origin: iliac crest
Insertion: Last rib
Action: Aids in extending trunk

Front 31

Pelvic Muscles: Psoas major

Back 31

Origin: Lumbar vertebrae
Insertion: Lesser trochanter of femur
Action: Flexion of femur

Front 32

Pelvic Muscles: Iliacus

Back 32

Origin: Iliac fossa
Insertion: Lesser trochanter of femur
Action: Flex femur

Front 33

Upper Limb (Movements of Brachium and Antebrachium): Coracobrachialis

Back 33

Origin: Coracoid process of scapulaMedial surface of humerus
Action: adduction of humerus
Insertion:

Front 34

Upper Limb (Movements of Brachium and Antebrachium): Biceps brachii

Back 34

Origin: Short (medial) head
Insertion: Radial tuberosity
Action: supinates forearm

Front 35

Upper Limb (Movements of Brachium and Antebrachium): Brachialis

Back 35

Origin: Lower half of humerus
Insertion: Coronoid process of ulna
Action: Flexes forearm

Front 36

Upper Limb (Movements of Brachium and Antebrachium): Brachioradialis

Back 36

Origin: above lateral epicondyle of humerus
Insertion: lateral surface of radius above styloid process
Action: flexes forearm

Front 37

Upper Limb (Movements of Brachium and Antebrachium): Triceps brachii

Back 37

Origin: Long head: scapula
Insertion: Olecranon process of ulna
Action: Extends forearm

Front 38

Upper Limb (Hand Movements- Supination and Pronation): Supinator

Back 38

Origin: lateral epicondyle of humerus
Insertion: lateral upper 1/3 of radius
Action: supinates forearm

Front 39

Upper Limb (Hand Movements- Supination and Pronation): Pronator teres

Back 39

Origin: medial epicondyle of humerus
Insertion: middle lateral surface of radius
Action: pronates forearm

Front 40

Upper Limb (Hand Movements- Flexion of Hand): Flexor carpi radialis

Back 40

Origin: Medial epicondyle of humerus
Insertion: 2nd & 3rd metacarpals
Action: Flexes wrist

Front 41

Upper Limb (Hand Movements- Flexion of Hand): Flexor carpi ulnaris

Back 41

Origin: Medial epicondyle of humerus
Insertion: Pisiform
Action: Flexes wrist

Front 42

Upper Limb (Hand Movements- Flexion of Hand): Palmaris longus

Back 42

Origin: Medial epicondyle of humerus
Insertion: Palmar aponeurosis
Action: Flexes wrist

Front 43

Upper Limb (Hand Movements- Flexion of Digits): Flexor digitorum superficialis

Back 43

Origin: Humerus
Insertion: Middle phalanges of digits 2-5
Action: Flexes middle and proximal phalanges of digits 2-5

Front 44

Upper Limb (Hand Movements- Flexion of Digits): Flexor pollicis longus

Back 44

Origin: Radius
Insertion: Distal phalanx 1
Action: Flexes thumb

Front 45

Upper Limb (Hand Movements- Extends Wrist and Hand): Extensor carpi radialis longus

Back 45

Origin: Humerus
Insertion: 2nd metacarpal
Action: Extends wrist

Front 46

Upper Limb (Hand Movements- Extends Wrist and Hand): Extensor carpi radialis brevis

Back 46

Origin: Humerus
Insertion: 3rd metacarpal
Action: Extends wrist

Front 47

Upper Limb (Hand Movements- Extends Wrist and Hand): Extensor carpi ulnaris

Back 47

Origin: Lateral epicondyle of humerus
Insertion: 5th metacarpal
Action: Extends wrist

Front 48

Upper Limb (Hand Movements- Extends Wrist and Hand): Extensor digitorum

Back 48

Origin: Lateral epicondyle of humerus
Insertion: Proximal and middle phalanges of digits 2-5
Action: Extension of digits 2-5

Front 49

Upper Limb (Hand Movements- Extends and Abducts Digits): Extensor pollicis longus

Back 49

Origin: Ulna and radius
Insertion: Distal phalanx of thumb
Action: Extends thumb

Front 50

Upper Limb (Hand Movements- Extends and Abducts Digits): Extensor pollicis brevis

Back 50

Origin: Radius
Insertion: Proximal phalanx of thumb
Action: Extends thumb

Front 51

Upper Limb (Hand Movements- Extends and Abducts Digits): Abductor pollicis longus

Back 51

Origin: Interosseus membrane
Insertion: Trapezium and 1st metacarpal
Action: Abduct thumb

Front 52

Upper Limb (Hand Movements- Extends and Abducts Digits): Abductor pollicis brevis

Back 52

Origin: flexor retinaculum
Insertion: proximal phalanx of thumb
Action: abducts thumb

Front 53

Lower Limb (Thigh Movements): Gluteus maximus

Back 53

Origin: ilium
Insertion: iliotibial tract
Action: outward rotation of femur

Front 54

Lower Limb (Thigh Movements): Gluteus medius

Back 54

Origin: Ilium
Insertion: Greater trochanter
Action: medial rotation of femur

Front 55

Lower Limb (Thigh Movements): Tensor fasciae latae

Back 55

Origin: anterior superior iliac spine
Insertion: lateral condyle of tibia
Action: flexes thigh

Front 56

Lower Limb (Thigh Movements): Adductor longus

Back 56

Origin: pubis
Insertion: linea aspera of femur
Action: medially rotates femur

Front 57

Lower Limb (Thigh Movements): Adductor magnus

Back 57

Origin: Pubis
Insertion: Gluteal tuberosity
Action: extends thigh

Front 58

Lower Limb (Thigh and Lower Leg Movements): Hamstring: Biceps femoris

Back 58

Origin: long head: ischial tuberosity
Insertion: head of fibula
Action: extends thigh

Front 59

Lower Limb (Thigh and Lower Leg Movements): Hamstring: Semitendinosus

Back 59

Origin: ischial tuberosity
Insertion: tibia
Action: extends thigh

Front 60

Lower Limb (Thigh and Lower Leg Movements): Hamstring: Semimembranosus

Back 60

Origin: ischial tuberosity
Insertion: medial condyle of tibia
Action: extends thigh

Front 61

Lower Limb (Thigh and Lower Leg Movements): Quadriceps Femoris: Rectus femoris

Back 61

Origin: superior rim of acetabulum
Insertion: patella
Action: Independently flexes femur

Front 62

Lower Limb (Thigh and Lower Leg Movements): Quadriceps Femoris: Vastus lateralis

Back 62

Origin: linea aspera
Insertion: lateral condyle of tibia
Action: extension of lower leg

Front 63

Lower Limb (Thigh and Lower Leg Movements): Quadriceps Femoris: Vastus medialis

Back 63

Origin: linea aspera
Insertion: patella
Action: extension of lower leg

Front 64

Lower Limb (Thigh and Lower Leg Movements): Quadriceps Femoris: Vastus intermedius

Back 64

Origin: anterior and lateral surface of femur
Insertion: patella
Action: extension of lower leg

Front 65

Lower Limb (Thigh and Lower Leg Movements): Sartorius

Back 65

Origin: anterior superior iliac spine
Insertion: medial surface of tibia
Action: medially rotate thigh

Front 66

Lower Limb (Thigh and Lower Leg Movements): Gracilis

Back 66

Origin: pubic bone
Insertion: medial surface of tibia
Action: rotates thigh medially

Front 67

Lower Limb (Lower Leg and Foot Movements): Triceps surae: Gastrocnemius

Back 67

Origin: medial and lateral condyles of femur (2 heads)
Insertion: posterior surface of calcaneus
Action: plantar flexion

Front 68

Lower Limb (Lower Leg and Foot Movements): Triceps surae: Soleus

Back 68

Origin: heads of fibula and tibia
Insertion: posterior surface of calcaneus
Action: plantar flexion

Front 69

Lower Limb (Lower Leg and Foot Movements): Tibialis anterior

Back 69

Origin: Lateral condyle
Insertion: Medial cuneiform
Action: Dorsiflexion

Front 70

Lower Limb (Lower Leg and Foot Movements): Tibialis posterior

Back 70

Origin: Tibia, fibula
Insertion: Navicular
Action: plantar flexion

Front 71

Lower Limb (Lower Leg and Foot Movements): Fibularis longus

Back 71

Origin: Head and upper surface of fibula
Insertion: 1st metatarsal
Action: plantar flexion

Front 72

Lower Limb (Lower Leg and Foot Movements): Fibularis brevis

Back 72

Origin: Lower lateral surface of fibula
Insertion: 5th metatarsal
Action: plantar flexion

Front 73

Lower Limb (Lower Leg and Foot Movements): Flexor digitorum longus

Back 73

Origin: lower posterior surface of tibia
Insertion: distal phalanges of digits 2-5
Action: flexes distal phalanges of 2-5

Front 74

Lower Limb (Lower Leg and Foot Movements): Flexor hallucis longus

Back 74

Origin: Lower posterior fibula
Insertion: Distal phalanx of first toe
Action: Flexion of first toe

Front 75

Lower Limb (Lower Leg and Foot Movements): Extensor digitorum longus

Back 75

Origin: Upper anterior fibula
Insertion: Middle and distal phalanges of digits 2-5
Action: Extension of toes, dorsiflexion