Elbow and Forearm POINA

Question 1

Anconeus Purposeful Action

Answer 1

Casting a fishing line, throwing a football

Question 2

Anconeus Main Action

Answer 2

-Assist triceps in extending forearm
-Stabilize elbow joint
-May abduct ulna during pronation

Question 3

Anconeus Proximal Attachment

Answer 3

Lateral epicondyle

Question 4

Anconeus Distal Attachment

Answer 4

Lateral olecranon

Question 5

Anconeus Innervation

Answer 5

Radial (C7-T1)

Question 6

Supinator Purposeful Action

Answer 6

Using a screwdriver, using a doorknob

Question 7

Supinator Main Action

Answer 7

Supinate forearm with biceps (at proximal radioulnar joint)

Question 8

Supinator Proximal Attachment

Answer 8

Lateral epicondyle, radial collateral and anular ligaments

Question 9

Supinator Distal Attachment

Answer 9

Lateral radius

Question 10

Supinator Innervation

Answer 10

PIN of radial nerve (C7 and C8)

Question 11

Pronator Teres Purposeful Action

Answer 11

Knitting, pouring coffee

Question 12

Pronator Teres Main Action

Answer 12

-Pronate forearm (radioulnar joint)
-Assist to flex elbow (humeroulnar joint, not a big job)

Question 13

Pronator Teres Proximal Attachment

Answer 13

Common flexor tendon (medial epicondyle) and coronoid process

Question 14

Pronator Teres Distal Attachment

Answer 14

Lateral radius

Question 15

Pronator Teres Innervation

Answer 15

Median nerve (C6-C7)

Question 15

Flexor Carpi Radialis Purposeful Action

Answer 15

Self-feeding, writing, sewing

Question 16

Flexor Carpi Radialis Main Action

Answer 16

Flex wrist, radial deviation (abduction)

Question 17

Flexor Carpi Radialis Proximal Attachment

Answer 17

Common flexor tendon (medial epicondyle)

Question 18

Flexor Carpi Radialis Distal Attachment

Answer 18

Bases of 2nd and 3rd metacarpals

Question 19

Flexor Carpi Radialis Innervation

Answer 19

Median nerve (C6-C7)

Question 20

Palmaris Longus Purposeful Action

Answer 20

Contributing to object grasp

Question 21

Palmaris Longus Main Action

Answer 21

-Tense palmar aponeurosis
-Flex wrist (radiocarpal joint)

Question 22

Palmaris Longus Proximal Attachment

Answer 22

Common flexor tendon (medial epicondyle)

Question 23

Palmaris Longus Distal Attachment

Answer 23

Flexor retinaculum and palmar aponeurosis

Question 24

Palmaris Longus Innervation

Answer 24

Median nerve (C7 and C8)

Question 25

Flexor Carpi Ulnaris Purposeful Action

Answer 25

Hammering a nail, playing piano, swiping on a tablet

Question 26

Flexor Carpi Ulnaris Main Action

Answer 26

Flex wrist, ulnar deviation

Question 27

Flexor Carpi Ulnaris Proximal Attachment

Answer 27

Humeral head: common flexor tendon (medial epicondyle)
Ulnar head: posterior ulna

Question 28

Flexor Carpi Ulnaris Distal Attachment

Answer 28

Pisiform, hook of hamate, base of 5th metacarpal

Question 29

Flexor Carpi Ulnaris Innervation

Answer 29

Ulnar nerve (C7-C8)

Question 30

Pronator Quadratus Purposeful Action

Answer 30

Replacing an overhead lightbulb, unlocking combo lock

Question 31

Pronator Quadratus Main Action

Answer 31

-Pronate forearm
-Deep fibers bind radius and ulna together

Question 32

Pronator Quadratus Proximal Attachment

Answer 32

Distal ulna

Question 33

Pronator Quadratus Distal Attachment

Answer 33

Distal radius

Question 34

Pronator Quadratus Innervation

Answer 34

Median nerve (C8-T1)