Elbow, Forearm, Wrist, and Hand

Question 1

brachialis orgin

Answer 1

distal 1/2 of the anterior surface of the humerus

Question 2

brachialis insertion

Answer 2

tuberosity and coronoid process of the ulna

Question 3

brachialis actions

Answer 3

flexes the elbow

Question 4

brachioradialis orgin

Answer 4

proximal 2/3 of the lateral supracondylar ridge of the humerus

Question 5

brachioradialis insertion

Answer 5

lateral side of radial styloid process

Question 6

brachioradialis actions

Answer 6

flexes the elbow
pronates the forearm from supinated to neutral

supinates the forearm from pronated to neutral

Question 7

flexor carpi radialis orgin

Answer 7

medial epicondyle of the humerus

Question 8

flexor carpi radialis insertion

Answer 8

base of 2nd and 3rd metacarpals on palmar side

Question 9

flexor carpi radialis actions

Answer 9

flexes the wrist
radially deviates (abducts) the wrist
slightly flexes the elbow
slightly pronates the forearm

Question 10

palmaris longus orgin

Answer 10

medial epicondyle of the humerus

Question 11

palmaris longus insertions

Answer 11

flexor retinaculum and palmar aponeurosis

Question 12

palmaris longus actions

Answer 12

tenses the palmar fascia
flexes the wrist
slightly flexes the elbow

Question 13

flexor carpi ulnaris orgin

Answer 13

humeral head: medial epicondyle

ulnar head: medial aspect of olecranon process and proximal 2/3 of posterior border

Question 14

flexor carpi ulnaris insertion

Answer 14

pisiform
hook of hamate
base of 5th metacarpal on palmar side

Question 15

flexor carpi ulnaris actions

Answer 15

flexes the wrist
ulnarly deviates (adducts) the wrist
slightly flexes the elbow

Question 16

flexor digitorium superficialis orgin

Answer 16

humeral head: medial epicondyle and ulnar collateral ligament

ulnar head: medial aspect of coronoid process

radial head: proximal 1/2 of anterior shaft distal to radial tuberosity

Question 17

flexor digitorium superficialis insertion

Answer 17

sides of middle phalanges of digits 2-5 by four separate tendons

Question 18

flexor digitorium superficialis actions

Answer 18

flexes proximal interphalangeal joints of digits 2-5

assists in flexing metacarpophalangeal joints of digits 2-5

assists in flexing the wrist and elbow

Question 19

flexor digitorium profundus orgin

Answer 19

anterior and medial surfaces of proximal 3/4 of the ulna and interosseous membrane

Question 20

flexor digitorium profundus insertion

Answer 20

base of distal phalanges of digits 2-5, palmar side by four separate tendons

Question 21

flexor digitorium profundus actions

Answer 21

flexes distal interphalangeal joints of digits 2-5

assists in flexing proximal interphalangeal joints of digits 2-5

assists in flexing metacarpophalangeal joints of digits 2-5

assists in flexing the wrist

Question 22

flexor pollicis longus orgin

Answer 22

anterior surface of body of the radius and interosseous membrane

Question 23

flexor pollicis longus insertion

Answer 23

base of 1st distal phalanx, palmar side

Question 24

flexor pollicis longus actions

Answer 24

flexes the thumb at carpometacarpal, metacarpophalangeal, and intercarpal joints

assists in flexing the wrists

Question 25

pronator teres orgin

Answer 25

humeral head: medial epicondyle ulnar head: medial aspect of coronoid process

Question 26

pronator teres insertion

Answer 26

midder 1/3 of the lateral radiu

Question 27

prontator teres actions

Answer 27

pronates the forearm assists in flexing the elbow

Question 28

pronator quadratus orgin

Answer 28

medial side and anterior surface of distal 1/4 of the ulna

Question 29

pronator quadratus insertion

Answer 29

lateral side and anterior surface of distal 1/4 of the radius

Question 30

pronator quadratus actions

Answer 30

pronates the forearm

Question 31

supinator orgin

Answer 31

lateral epicondyle of the humerus supinator crest of the ulna

Question 32

supinator insertion

Answer 32

posterior, lateral, and anterior surfaces of proximal 1/3 of the radius

Question 33

supinator actions

Answer 33

supinates the forearm slightly extends the elbow

Question 34

anconeus orgin

Answer 34

posterior surface of lateral epicondyle of the humerus and humeroulnar joint capsule

Question 35

anconeus insertion

Answer 35

lateral aspect of olecranon process and posterior surface of proximal body of the ulna

Question 36

anconeus actions

Answer 36

extends the elbow stabilizes the ulna while forearm pronates and supinates

Question 37

extensor carpi radialis longus orgin

Answer 37

distal 1/3 of the lateral supracondylar ridge of the humerus

Question 38

extensor carpi radialis longus insertion

Answer 38

base of 2nd mtacarpal, dorsal side

Question 39

extensor carpi radialis longus action

Answer 39

extends the wrist radially deviates (abducts) the wrist assists in flexing the elbow slightly supinates the forearm

Question 40

extensor carpi radialis brevis orgin

Answer 40

lateral epicondyle of the humerus

Question 41

extensor carpi radialis brevis insertion

Answer 41

base of 3rd metacarpal, dorsal side

Question 42

extensor carpi radialis brevis action

Answer 42

extends the wrist radially deviates (abducts) the wrist assists in extending the elbow

Question 43

extensor carpi ulnaris orgin

Answer 43

lateral epicondyle of the humerus middle 1/3 of posterior border of the ulna

Question 44

extensor carpi ulnaris insertion

Answer 44

base of 5th metacarpal, dorsal side

Question 45

extensor carpi ulnaris action

Answer 45

extends the wrist ulnarly deviates (adducts) the wrist slightly extends the elbow

Question 46

extensor digitorum orgin

Answer 46

laterla epicondyle of the humerus

Question 47

extensor digitorum insertions

Answer 47

middle and distal phalanges of digits 2-5, dorsal side

Question 48

extensor digitorum actions

Answer 48

extends digits 2-5 at metacarpophalangeal, proximal interphalangeal, and distal interphalangeal joints extends the wrist slightly extends the elbow

Question 49

extensor indicis orgin

Answer 49

ulna, posterior surface of body and interosseous membrane

Question 50

extensor indicis insertion

Answer 50

based of 2nd proximal phalanx and into tendon of extensor digitorum to the 2nd digit

Question 51

extensor indicis actions

Answer 51

extends 2nd digit at metacarpophalangeal joints and interphalangeal joints extends the wrist slightly supinates the forearm

Question 52

extensor digiti minimi orgin

Answer 52

lateral epicondyle of the humerus

Question 53

extensor digiti minimi insertion

Answer 53

base of 5th proximal phalanx, dorsal side

Question 54

extensor digiti minimi actions

Answer 54

extends the 5th digit at metacaropophalangeal and interphalangeal joints extend the wrist slightly extends the elbow

Question 55

abductor pollicus longus orgin

Answer 55

middle 1/3 of posterior surface of the ulna, radius, and interosseous membrane

Question 56

abductor pollicus longus insertion

Answer 56

base of 1st metacarpal, dorsal side

Question 57

abductor pollicus longus actions

Answer 57

adbucts the 1st carpometacarpal joint extends the 1st carpometacarpal joint radially deviates (abducts) the wrist slightly flexes the wrist

Question 58

extensor pollicis brevis orgin

Answer 58

distal 1/3 of posterior surface of the radius and interosseous membrane

Question 59

extensor pollicis brevis insertion

Answer 59

base of 1st proximal phalanx, dorsal side

Question 60

extensor pollicis brevis action

Answer 60

extends the thumb at the carpometacarpal and metacarpophalangeal joints abducts the thumb at the carpometacarpal joint slightly radially deviates (abducts) the wrist

Question 61

extensor pollicis longus orgin

Answer 61

middle 1/3 of posterior surface of the ulna and interosseous membrane

Question 62

extensor pollicis longus insertion

Answer 62

base of 1st distal phalanx, dorsal side

Question 63

extensor pollicis longus action

Answer 63

extends the thumb at the carpometacarpal, metacarpophalangeal, and interphalangeal joints slightly radially deviates (abducts) the wrist slightly extends the wrist