Muscles

Question 1

Flexor Carpi Ulnaris Origin

Answer 1

Humeral head:
common tendon from medial epicondyle of humerus
Ulnar hea:
posterior surface of proximal 2/3 of ulna

Question 2

Flexor Carpi Ulnaris insertion

Answer 2

Pisiform, hook of hamate and base of ulna

Question 3

Flexor Carpi Ulnaris actions

Answer 3

flex the radiocarpal
adduct radiocarpal
assist to flex the humeroulnar joint

Question 4

Flexor carpi Ulnaris innervation

Answer 4

ulnar nerve

Question 5

flexor Carpi radialis origin

Answer 5

common flexor tendon from medial epicondyle of humerus

Question 6

flexor Carpi radialis insertion

Answer 6

bases of 2nd and 3rd metacarpals

Question 7

flexor Carpi radialis actions

Answer 7

flex the radiocarpal joint
abduct the radiocarpal joint
may assist to flex the humeroulnar joint

Question 8

flexor Carpi radialis innervation

Answer 8

median nerve

Question 9

Palmaris longus origin

Answer 9

common flexor tendon from medial epicondyle of humerus

Question 10

palmaris longus insertion

Answer 10

flexor retinaculum and palmar aponeurosis

Question 11

palmaris longus actions

Answer 11

tense the palmar fascia
flex the radiocarpal joint
may assist to flex the humeroulnar joint

Question 12

palmaris longus innervation

Answer 12

median nerve

Question 13

Flexor digitorum superficialis origin

Answer 13

common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of the ulna, interosseous membrane and proximal shaft of radius

Question 14

flexor digitorum superficialis insertion

Answer 14

sides of middle phalanges of 2nd - 5th fingers

Question 15

flexor digitorum superficialis actions

Answer 15

flex 2nd-5th fingers at the metacarpophalangeal and proximal interphalangeal joints
flex radiocarpal joint

Question 16

flexor digitorum superficialis innervation

Answer 16

median nerve

Question 17

flexor digitorum profundus origin

Answer 17

anterior and medial surface of proximal 3/4 of ulna

Question 18

flexor digitorum profundus insertion

Answer 18

bases of distal phalanges, palmar surface of 2nd through 5th fingers

Question 19

flexor digitorum profundus actions

Answer 19

flex the 2nd -5th fingers at mtp and distal itp joints
assist to flex the radiocarpal joints

Question 20

flexor digitorum profundus innervation

Answer 20

fingers 2/3- median
fingers 4/5- ulnar

Question 21

pronator quadratus origin

Answer 21

medial anterior surface of the distal ulna

Question 22

pronator quadratus insertion

Answer 22

lateral anterior surface of the distal radius

Question 23

pronator quadratus actions

Answer 23

pronates the radioulnar joints

Question 24

pronator quadratus innervation

Answer 24

median nerve

Question 25

brachialis origin

Answer 25

distal 1/2 of anterior surface of the humerus

Question 26

brachialis insertion

Answer 26

tuberosity and the coronoid process of the ulna

Question 27

brachialis actions

Answer 27

flex the humeroulnar joint

Question 28

brachialis innervation

Answer 28

musculocutaneous, small branch from radial

Question 29

pronator teres origin

Answer 29

common flexor tendon from medial epicondyle of the humerus and coronoid process of the ulna

Question 30

pronator teres insertion

Answer 30

middle of lateral surface of the radius

Question 31

pronator teres actions

Answer 31

pronate the radioulnar joint assist to flex the humeroulnar joint

Question 32

pronator teres innervation

Answer 32

median

Question 33

extensors Carpi radialis longus origin

Answer 33

distal 1/3 of lateral supracondylar ridge of the humerus

Question 34

extensors Carpi radialis longus insertion

Answer 34

base of 2nd metacarpal

Question 35

extensors Carpi radialis longus actions

Answer 35

extend the radiocarpal joint abduct the radiocarpal joint assist to flex the humeroulnar joint

Question 36

extensors Carpi radialis longus innervation

Answer 36

radial

Question 37

extensors Carpi radialis brevis origin

Answer 37

common extensor tendon from the lateral epicondyle of the humerus

Question 38

extensors Carpi radialis brevis insertion

Answer 38

base of 3rd metacarpal

Question 39

extensors Carpi radialis brevis actions

Answer 39

extend the radiocarpal abduct radiocarpal joint assist to flex the humeroulnar joint

Question 40

supinator origin

Answer 40

lateral epicondyle of the humerus, radial collateral ligament, annular ligament and supinator crest of the ulna

Question 41

supinator insertion

Answer 41

anterior lateral surface of proximal 1/3 of radial shaft

Question 42

supinator actions

Answer 42

supinate the radioulnar joints

Question 43

supinator innervation

Answer 43

radial

Question 44

abductor pollicis longus origin

Answer 44

posterior surface of radius and ulna and interosseous membrane

Question 45

abductor pollicis longus insertion

Answer 45

base of 1st metacarpal

Question 46

abductor pollicis longus actions

Answer 46

abduct the thumb at carpometacarpal joint extend the thumb at the carpometacarpal joint abduct the radiocarpal joint

Question 47

Deltoid origin

Answer 47

lateral 1/3 of clavicle acromion and spine of scapula

Question 48

deltoid insertion

Answer 48

deltoid tuberosity

Question 49

deltoid actions

Answer 49

all: abduct shoulder anterior: flex, medially rotate horizontally adduct posterior: extends, laterally rotates and horizontally abducts

Question 50

deltoid innervation

Answer 50

axillary nerve

Question 51

biceps brachii origin

Answer 51

short head: coracoid process of the scapula Long head: supragelnoid tubercle of the scapula

Question 52

biceps brachii insertion

Answer 52

tuberosity of the radius and aponeurosis of the biceps brachiii

Question 53

biceps brachiii actions

Answer 53

flex the gh joint flex elbow humeroulnar joint supinate the forearm at radioulnar joints

Question 54

biceps brachii innervation

Answer 54

musculocutaneous nerve

Question 55

triceps brachii origin

Answer 55

Long head: infraglenoid tubercle of scapula Lateral: posterior 1/2 of proximal surface of humerus medial: posterior 1/2 of distal surface of humerus

Question 56

triceps brachii insertion

Answer 56

olecranon process of the ulna

Question 57

triceps brachii actions

Answer 57

extend the humeroulnar joint long head: adducts and extend the glenohumeral joint

Question 58

triceps brachii innervation

Answer 58

radial nerve

Question 59

brachioradialis origin

Answer 59

proximal 2/3 of lateral supracondylar ridge of the humerus

Question 60

brachioradialis insertion

Answer 60

styloid process of the radius

Question 61

brachioradialis actions

Answer 61

flexes the elbow at humeroulnar joint assist to pornate or supinate when these movements are resisted.

Question 62

brachioradialis innervation

Answer 62

radial nerve

Question 63

Extensor pollicis longus

Answer 63

radial nerev posterior surface of the ulna and interosseous membrane base of distal phalanx of thumb extend thumb, abduct wrist

Question 64

extensor pollicis brevis

Answer 64

radial posterior surface of radius and interosseous membrane base of proximal phalanx of thumb extend thumb, abduct wrist

Question 65

flexor pollicis longus

Answer 65

median anterior surface of radius and interosseous membrane base of sital phalanx of thumb flex thumb, assist to flex wrist

Question 66

abductor pollicis brevis

Answer 66

median nerve flexor retinaculum, trapezium and scophoid tubercle base of proximal phalanx of thumb abduct thumb, assist opposition of thumb