Exsc Lab Final!

Front 1

Triceps Brachii

Back 1

Origin:
Long head- inferior margin of glenoid cavity
Lateral head- posterior humerus
Medial head- Distal radial groove on posterior humerus

Insertion: Olecranon of Ulna

Action: Powerful forearm extensor

Front 2

Biceps Brachii

Back 2

Origin:
Short head- coracoid process
Long head- supraglenoid tubercle and lipp of glenoid cavity

Insertion: Radial tuberosity

Action: Flexion of elbow and supination of forearm

Front 3

Brachialis

Back 3

Origin:
Distal portion of anterior humerus

Insertion:
Coronoid process of ulna

Action:
A major flexor of forearm

Front 4

Brachioradialis

Back 4

Origin:
Lateral ridge at distal end of humerus

Insertion:
Coronoid process of ulna

Action:
A major flexor of forearm

Front 5

Pronator Teres

Back 5

Origin:
Medial epicondyle of humerus and coronoid process of ulna

Insertion:
Midshaft of radius

Action:
Pronates forearm

Front 6

Extensor Carpi Radialis longus

Back 6

Origin:
Lateral supracondylar ridge of humerus

Insertion:
Base of metacarpal II

Action:
Extends and abducts wrist

Front 7

Flexor Carpi Radialis

Back 7

Origin:
Medial epicondyle of humerus

Insertion:
Base of metacarpals II and III

Action:
Powerful flexor of wrist; abducts hand

Front 8

Palmaris Longus

Back 8

Origin:
Medial epicondyle of humerus

Insertion:
Palmar aponeurosis; skin and fascia of palm

Action:
Tenses skin and fascia of palm

Front 9

Flexor carpi Ulnaris

Back 9

Origin:
Medial epicondyle of humerus and olecranon and posterior surface of ulna

Insertion:
Base of metacarpal; pisiform and hamate bones

Action:
Powerful flexor of wrist; adducts hand

Front 10

Flexor Digitorum Superficialis

Back 10

Origin:
Medial epicondyle of humerus coronoid process of ulna, and shaft of radius

Insertion:
Middle phalanges of fingers 2-5

Action:
Flexes wrist and middle phalanges of fingers 2-5

Front 11

Extensor Carpi UInaris

Back 11

Origin:
Lateral epicondyle of humerus; posterior border of ulna

Insertion:
Base of metacarpal V

Origin:
Extends and adducts wrist

Front 12

Extensor Digitorum

Back 12

Origin:
lateral epicondyle of humerus

Insertion:
By four tendons into distal phalanges of fingers 2-5

Action:
rime mover of finger extension

Front 13

Flexor Pollicis Longus

Back 13

Origin:
Anterior surface of radius, and interosseous membrane

Insertion:
Distal phalanx of thumb

Action:
Flexes Thumb

Front 14

Pronator Quadratus

Back 14

Origin:
Distal portion of anterior ulnar surface

Insertion:
Anterior surface of radius, distal end

Action:
Pronates forearm

Front 15

Extensor Pollicis Longus

Back 15

Origin:
Dorsal shaft of ulna and radius

Insertion:
Base of distal phalanx of thumb

Action:
Extend thumb

Front 16

Abductor Pollicis Longus

Back 16

Origin:
Posterior surface of radius and ulna; interosseous membrane

Insertion:
Metacarpal I and trapezium

Action:
Abducts and extends thumb

Front 17

Supinator

Back 17

Origin:
Lateral epidcondyle of humerus; proximal ulna

Insertion:
Proximal end of radius

Action:
Acts w/ biceps brachii to supinate forearm

Front 18

Tibialis Anterior

Back 18

Origin:
Lateral Condyle and upper 2/3 of tibia

Insertion:
By tendon into inferior surface of first cuneiform and metatarsal I

Action:
Prime mover of dorsiflexion

Front 19

Soleus

Back 19

Origin:
Proximal portion of tibia and fibula

Insertion:
Calcaneus via calcaneal tendon

Action:
Plantar flexion

Front 20

Gastronemius

Back 20

Origin:
By two heads from medial and lateral condyles of femur

Insertion:
Calcaneus via calcaneal tendon

Action:
Plantar flexion

Front 21

Gluteus Maximus

Back 21

Origin:
Dorsal ilium, sacrum and coccyx

Insertion:
Gluteal tuberosity of femur and iliotibial tract

Action:
Complex, powerful thigh extension

Front 22

Gluteus Medius

Back 22

Origin:
Upper lateral surface of ilium

Insertion:
Greater trochanter of femur

Action:
Abducts and medially rotates thigh

Front 23

Biceps Femoris (long and short head)

Back 23

Origin:
Ischial tuberosity (long head); line aspera and distal femur (short head)

Insertion:
Tendon passes laterally to insert into head of fibula and lateral condyle of tibia

Action:
Extends thigh; flexes knee

Front 24

Semitendinosus

Back 24

Origin:
Ischial tuberosity

Insertion:
Medial aspect of upper tibial shaft

Action:
Extends thigh; flexes knee

Front 25

Semimembranosus

Back 25

Origin:
Ischial tuberosity

Insertion:
Medial condyle of tibia; lateral condyle of femur

Action:
Extends thigh, flexes knee

Front 26

Pectineus

Back 26

Origin:
Pectineal line of pubis (and superior pubic rams)

Insertion:
Inferior from lesser trochanter to line aspera of femur

Action:
Adducts, flexes, and medially rates thigh

Front 27

Adductor longus

Back 27

Origin:
Pubis near pubic symphysis

Insertion:
Linea aspera

Action:
Adduct and medially rotate and flex thigh

Front 28

Gracillis

Back 28

Origin:
Inferior ramus and body of pubis

Insertion:
Medial surface of tibia just inferior to medial condyle

Action:
Adducts thigh; flexes and medially rotates leg

Front 29

Adductor Mangus

Back 29

Origin:
Ischial and pubic rami and ischial tuberosity

Insertion:
Linea aspera and adductor tubercle of femur

Action:
Adduct and medially rotate and flex thigh

Front 30

Vastus Medialis

Back 30

Origin:
Linea aspera and intertrochanteric line

Insertion:
Tibial tuberosity and patella

Action:
Extends knee

Front 31

Vastus Intermedius

Back 31

Origin:
Anterior and lateral surface of femur

Insertion:
Tibial tuberosity and patella

Action:
Extends knee

Front 32

Vastus Lateralis

Back 32

Origin:
Greater trochanter, intertrochanteric line, and line aspera

Insertion:
Tibial tuberosity and patella

Action:
Extends and stabilizes knee

Front 33

Rectus Femoris

Back 33

Origin:
Anterior inferior iliac spine and superior magin of acetabulum

Insertion:
Tibial tuberosity and patella

Action:
Extends knee and flexes thigh at hip

Front 34

Tensor Fasciae Latae

Back 34

Origin:
Anterior aspect of iliac crest and anterior superior iliac spine

Insertion:
Iliotibial tract (lateral portion of fascia lata)

Action:
Steadies tunk

Front 35

Psoas Major

Back 35

Origin:
Transverse processes, bodies and discs of T12 and lumbar vertebrae

Insertion:
On and just below lesser trochanter of femur

Action:
Flex trunk on thigh; flex thigh; lateral flexion of vertebral column

Front 36

Iliacus

Back 36

Origin:
Iliac fossa and crest, lateral sacrum

Insertion:
On and just below lesser trochanter of femur

Action:
Flex trunk on thigh; flex thigh; lateral flexion of vertebral column

Front 37

Sartorius

Back 37

Origin:
Anterior superior iliac spine

Insertion:
By an aponeurosis into medial aspect of proximal tibia

Action:
flexes, abducts and laterally rotates thigh; flexes knee

Front 38

Gluteus Minimus

Back 38

Origin:
Upper lateral surface of ilium

Insertion:
Greater trochanter of femur

Action:
Powerful thigh extensor

Front 39

Fibularis longus

Back 39

Origin:
Head and upper portion of fibula

Insertion:
By long tendon under foot to metatarsal I and medial cuneiform

Action:
Plantar flexes and everts foot

Front 40

Extensor Digitorum longus

Back 40

Insertion:
Lateral condyle of tibia; proximal ¾ fibula;

Insertion:
Tendon divides into four parts; inserts into middle and distal phalanges of toes 2-5

Action:
Prime mover of toe extension

Front 41

Extensor Hallucis longus

Back 41

Origin:
Anteromedial shaft of fibula and interosseous membrane

Insertion:
Tendon inserts on distal phalanx of great toe

Action:
Extends great toe

Front 42

Flexor Digitorum longus

Back 42

Origin:
Posterior surface of tibia

Insertion:
Distal phalanges of toes 2-5

Action:
Flexes toes; plantar flexes and inverts foot

Front 43

Flexor Hallucis longus

Back 43

Origin:
Middle portion of fibula shaft; interosseous membrane

Insertion:
Tendon runs under foot to distal phalanx of great toe

Action:
Flexes great toe; plantar flexes and inverts foot

Front 44

Temporalis

Back 44

Origin:
Temporal fossa

Insertion:
Coronoid process of mandible

Action:
Closes jaw

Front 45

Masseter

Back 45

Origin:
Zygomatic arch and maxilla

Insertion:
Angle and ramus of mandible

Action:
Prime mover of jaw closure

Front 46

Oribularis Oris

Back 46

Origin:
Arises indirectly from maxilla and mandible; fibers blended with fibers of other muscles associated with lips

Insertion:
Encircles mouth: inserts into muscle and skin at angles of mouth

Action:
Closes Lips

Front 47

Orbicularis Occuli

Back 47

Origin:
Frontal and maxillary bones and ligaments around orbit

Insertion:
Encircles orbit and inserts in tissue of eyelid

Action:
Closes eye

Front 48

Sternohyoid

Back 48

Origin:
Manubrium and medial end of clavicle

Insertion:
Lower margin of body of hyoid bone

Action:
Depresses larynx and hyoid bone

Front 49

Stenocleidomastoid

Back 49

Origin:
Manubrium of sternum and medial portion of clavicle

Insertion:
Mastoid process of temporal bone and superior nuchal line of occipital bone

Action:
Flexion of neck forward, rotate head toward shoulder on opposite side

Front 50

Zygomaticus

Back 50

Origin:
Zygomatic bone

Insertion:
Skin and muscle at corner of mouth

Action:
Raises lateral corners of mouth upward

Front 51

Epicranius (frontal belly)

Back 51

Origin:
Epicranial aponeurosis

Insertion:
Skin of eyebrows and root of nose

Action:
Raises eyebrows

Front 52

Corrugator supercilli

Back 52

Origin:
Arch of frontal bone above nasal arch

Insertion:
Skin of eyebrow

Action:
draws eyebrows medially and inferiorly

Front 53

Levator Labii superioris

Back 53

Origin:
Zygomatic bone and infraorbital margin of maxilla

Insertion:
Skin and muscle of upper lip and border of nostril

Action:
Opens lips

Front 54

Lateral pterygoid

Back 54

Origin:
Greater wing of the sphenoid bone

Insertion:
Condylar process of mandible

Action:
Aids in grinding movements of teeth

Front 55

Anterior/posterior scalene

Back 55

Origin:
Transverse process of cervical vertebrae

Insertion:
Anterolaterally on ribs 1-2

Action:
Elevate ribs 1-2

Front 56

Deltoid

Back 56

Origin:
Lateral 1/3 of clavicle; acromion and spine of scapula

Insertion:
Deltoid tuberosity of humerus

Action:
Acting as a whole, prime mover of arm abduction

Front 57

Pectoralis major

Back 57

Origin:
Clavicle, sternum, cartilage of ribs 1-6 and aponeurosis of external oblique muscle

Insertion:
Fibers converge to insert by short tendon into intertubercular sulcus of humerus

Action:
Prime mover of arm flexion, adducts, medially rotates arm

Front 58

Subscapilaris

Back 58

Origin:
Subscapular fossa

Insertion:
Insertion into the lesser tubercle of the humerus

Action:
Internally rotates humerus

Front 59

Pectoralis minor

Back 59

Origin:
Anterior surface of ribs 3-5, near their costal cartilages

Insertion:
Coracoid process of scapula

Action:
With ribs fixed, draws scapula forward and interiorly

Front 60

Serratus Anterior

Back 60

Origin:
Lateral aspect of ribs

Insertion:
Vertebral border of anterior surface of scapula

Action:
Prime mover to protract and hold scapula against chest wall; rotates scapula

Front 61

External Intercostals

Back 61

Origin:
Inferior border of rib above

Insertion:
Superior border of rib below

Action:
Pulls ribs toward one another to elevate rib cage

Front 62

Internal Intercostals

Back 62

Origin:
Superior border of rib below

Insertion:
Interior border of rib above

Action:
Draw ribs together to depress rib cage

Front 63

Diaphragm

Back 63

Origin:
Inferior border of rib and sternum, costal cartilages of last six ribs and lumbar vertebrae

Insertion:
Central tendon

Action:
Prime mover of inspiration flattens on contraction

Front 64

Rectus Abdominis

Back 64

Origin:
Pubic crest and symphysis

Insertion:
Xiphoid process and costal cartilage's of ribs 5-7

Action:
Flexes and rotates vertebral column

Front 65

Internal Oblique

Back 65

Origin:
Lumbar fascia, iliac crest, and inguinal ligament

Insertion:
Linea alba, pubic crest, costal cartilages of last three ribs

Action:
Same as for external Oblique

Front 66

External Oblique

Back 66

Origin:
Anterior surface of last 8 ribs

Insertion:
Linea alba, pubic crest and tubercles, and iliac crest

Action:
Flexes and rotates vetebral column, compresses abdominal wall, and trunk rotation and lateral flexion

Front 67

Transverse Abdominis

Back 67

Origin:
Inguinal ligament, iliac crest, cartilages of last five or six ribs, and lumbar fascia

Insertion:
Linea alba and pubic crest

Action:
Compresses abdominal contents

Front 68

Trapezius

Back 68

Origin:
Occipital bone; ligamentum nuchae; spines of C7 and all thoracic vertebrae

Insertion:
Acromion and spinous process of scapula; lateral third of clavicle

Action:
Raises, rotates, and retracts (adducts) scapula and stabilizes it.

Front 69

Latissimus Dorsi

Back 69

Origin:
Indirect attachment to spinous processes of lower 6 thoracic vertebrae, lumbar vertebrae, last 3 to 4 ribs, and iliac crest

Insertion:
Floor of inter tubercular sulcus of humerus

Action:
Prime mover of arm extension; adducts and medially rotates arm

Front 70

Levator Scapulae

Back 70

Origin:
Transverse processes of C1-C4

Insertion:
Medial border of scapula superior to spine

Action:
Elevates and adducts scapula

Front 71

Suprasinatus

Back 71

Origin:
Supraspinous fossa of scapula

Insertion:
Greater tubercle of humerus

Action:
Initiates abduction of humerus

Front 72

Infraspinatus

Back 72

Origin:
infraspinous fossa of scapula

Insertion:
Greater tubercle of humerus

Action:
Lateral rotation of humerus

Front 73

Teres Minor

Back 73

Origin:
Lateral margin of scapula

Insertion:
Greater tubercle of humerus

Action:
Lateral rotation of humerus

Front 74

Teres Major

Back 74

Origin:
Posterior surface at inferior angle of scapula

Insertion:
Intertubercular sulcus of humerus

Action:
Extends, medially rotates, and adducts humerus

Front 75

Erector Spinae (3 parts)

Back 75

Origin:
Iliac crest, transverse process of lumbar, thoracic, and cervical vertebrae, and/or ribs 3-6 depending on specific part

Insertion:
Ribs and transverse processes of vertebrae about 6 segments above origin; longissimus also inserts into mastoid process

Action:
Extend and bend the vertebral column laterally; fibers of the longissimus also extend head

Front 76

Quadratus Lumborum

Back 76

Origin:
Iliac crest and lumbar fascia

Insertion:
Inferior border of rib 12; transverse processes of lumbar vertebrae

Action:
Each flexes vertebral column laterally.