Muscle Origins

Question 1

sternocleidomastoid

Answer 1

sternum and clavicle

Question 2

rectus abdominus

Answer 2

pubic crest and symphysis

Question 3

external oblique

Answer 3

ribs 5-12 (lower 8)

Question 4

internal oblique

Answer 4

iliac crest and inguinal ligament

Question 5

transversus abdominus

Answer 5

iliac crest, inguinal ligament, and cartilage of last 6 ribs (5-10)

Question 6

diaphram

Answer 6

xiphoid and cartilage of last 6 ribs

Question 7

external intercostals

Answer 7

inferior border of rib above

Question 8

internal intercostals

Answer 8

superior border of rib below

Question 9

trapezius

Answer 9

occipital bone and spines C7-T12

Question 10

rhomboideus major

Answer 10

spines T2-T5

Question 11

pectoralis major

Answer 11

clavivle, sternum, cartilage of ribs 2-6

Question 12

latissimus dorsi

Answer 12

spines T7-T12 (book: T7-L5), sacral crest, and ilium

Question 13

deltoid

Answer 13

acromial extremity of clavicle, acromion of scapula, and spine of scapula

Question 14

supraspinatous

Answer 14

supraspinous fossa of scapula

Question 15

teres major

Answer 15

inferior angle of scapula

Question 16

teres minor

Answer 16

inferior lateral border of scapula

Question 17

biceps brachii

Answer 17

long head: tubercle above glenoid cavity of scapula (supraglenoid cavity)
short head: coracoid process of scapula

Question 18

brachialis

Answer 18

distal, anterior surface of humerus

Question 19

brachioradialis

Answer 19

lateral border of distal end of humerus (supracondyle ridge)

Question 20

triceps brachii

Answer 20

long head: infraglenoid tubercle
lateral head: lateral and posterior surface of humerus
medial head: entire posterior surface of humerus inferior to a groove for the radial nerve

Question 21

palmaris longus

Answer 21

medial epicondyle of humerus

Question 22

flexor digitorum superficialis

Answer 22

medial epicondyle of humerus, coronoid process of ulna

Question 23

felxor digitorum profundus

Answer 23

anterior medial surface of body of ulna

Question 24

flexor pollucis longus

Answer 24

anterior surface of radius and interosseous membrane

Question 25

extensor carpi radialis longus

Answer 25

lateral supracondylar ridge of humerus

Question 26

extensor digitorum

Answer 26

lateral epicondyle of humerus

Question 27

extensor pollucis brevis

Answer 27

posterior surface of middle of radius and ulna and interosseous membrane

Question 28

thenar - opponens pollicis

Answer 28

flexor retinaculum and trapexium

Question 29

thenar - abductor pollicis brevis

Answer 29

flexor retinaculum, scaphoid, and trapexium

Question 30

thenar - flexor pollicis brevis

Answer 30

flexor retinaculum, trapezium, capitate, and trapezoid

Question 31

thenar - adductor pollicis

Answer 31

oblique head: capitate and 2nd and 3rd metacarpals | transverse head: 3rd metacarpal

Question 32

hypothenar - abductor digiti minimi

Answer 32

pisiform and tendon of flexor carpi ulnaris

Question 33

hypothenar - flexor digiti minimi brevis

Answer 33

flexor retinaculum and hamate

Question 34

hypothenar - opponens digiti minimi

Answer 34

flexor retinaculum and hamate

Question 35

midpalmer - lumbricals

Answer 35

lateral sides of tendons and flexor digitorum profundus of each finger

Question 36

midpalmer - dorsal interossei

Answer 36

adjacent sides of metacarpals

Question 37

midpalmer - palmar interossei

Answer 37

sides of shafts of metacarpals of all digits (except middle one)

Question 38

psoas major

Answer 38

transverse processes and bodies of lumbar vertebrae

Question 39

gluteus maximus

Answer 39

iliac crest, sacrum, coccyx

Question 40

gluteus medius

Answer 40

ilium

Question 41

tensor fasciae latae

Answer 41

iliac crest

Question 42

adductor longus

Answer 42

pubic symphysis and crest

Question 43

adductor brevis

Answer 43

inferior ramus of pubis

Question 44

gracillis

Answer 44

pubic symphysis

Question 45

rectus femoris

Answer 45

AIIS

Question 46

vastus lateralis

Answer 46

greater trochanter and linea aspera of femur

Question 47

vastus medialis

Answer 47

linea aspera of femur

Question 48

vastus intermedius

Answer 48

anterior and lateral surfaces of body of femur

Question 49

sartorius

Answer 49

ASIS

Question 50

biceps femoris

Answer 50

long head: ischial tuberosity | short head: linea aspera of femur

Question 51

semitendinosus

Answer 51

ischial tuberosity

Question 52

semimembranosus

Answer 52

ischial tuberosity

Question 53

gastrocnemius

Answer 53

lateral and medial condyles of femur and capsule of knee

Question 54

soleus

Answer 54

fibula head and medial border of tibia

Question 55

flexor hallucis longus

Answer 55

distal 2/3 of fibula

Question 56

flexor digitorum longus

Answer 56

posterior surface of tibia

Question 57

tibialis anterior

Answer 57

lateral condyle and body of tibua and interosseous membrane

Question 58

extensor digitorum longus

Answer 58

lateral condyle of tibia, anterior surface of fibula, and interosseous membrane

Question 59

extensor hallucis longus

Answer 59

anterior surface of tibia and interosseous membrane

Question 60

flexor digitorum brevis

Answer 60

calcaneus, plantar aponeurosis

Question 61

flexor hallucis brevis

Answer 61

cuboid and 3rd (lateral) ceneiform