Wrist & Hand

Question 1

Flexor Digitorum Superficialis Origin & Insertion

Answer 1

O=Medial Epicondyle, UCL, Ulnar Coranoid Process, Interosseous Membrane, & Proximal Radius

I=Sides of Middle Phalanges 2-5

Question 2

Flexor Digitorum Superficialis Action

Answer 2

Flex Fingers 2-5 (PIP)

Wrist Flexion

Question 3

Flexor Digitorum Profundus Origin & Insertion

Answer 3

O=Proximal Anteromedial Ulna

I=Bases of Distal Phalanges 2-5

Question 4

Flexor Digitorum Profundus Action

Answer 4

Flex Fingers 2-5 (DIP)

Assist w/Wrist Flexion

Question 5

Flexor Pollicis Longus Origin & Insertion

Answer 5

O=Anterior Radius & Interosseous Membrane

I=Base of 1st Distal Phalanx

Question 6

Flexor Pollicis Longus Action

Answer 6

Flex Thumb

Assists w/Wrist Flexion

Question 7

Abductor Pollicis Longus Origin & Insertion

Answer 7

O=Posterior Radius, Posterior Ulna, & Interosseous Membrane

I=Base of 1st Met

Question 8

Abductor Pollicis Longus Action

Answer 8

Abduct & Extend Thumb

Radial Deviation

Question 9

Extensor Pollicis Brevis Origin & Insertion

Answer 9

O=Posterior Radius & Interosseous Membrane

I=Base of 1st Proximal Phalanx

Question 10

Extensor Pollicis Brevis Action

Answer 10

Extend Thumb

Radial Deviation

Question 11

Extensor Pollicis Longus Origin & Insertion

Answer 11

O=Posterior Ulna & Interosseous Membrane

I=Base of 1st Distal Phalanx

Question 12

Extensor Pollicis Longus Action

Answer 12

Extend Thumb

Radial Deviation

Question 13

Extensor Indicis Origin & Insertion

Answer 13

O=Posterior Ulna & Interosseous Membrane

I=ED Tendon @ 2nd Met

Question 14

Extensor Indicis Action

Answer 14

Extend & Adduct Index Finger

Assist to Extend the Wrist

Question 15

Abductor Pollicis Brevis Origin & Insertion

Answer 15

O=Flexor Retinaculum, Trapezium, & Scaphoid

I=Base of 1st Proximal Phalanx

Question 16

Abductor Pollicis Brevis

Answer 16

Thumb Abduction & Opposition

Question 17

Flexor Pollicis Brevis Origin & Insertion

Answer 17

O=Flexor Retinaculum (Superficial Head)
Trapezium, Trapezoid, & Capitate (Deep Head)

I=Base of 1st Proximal Phalanx

Question 18

Flexor Pollicis Brevis Action

Answer 18

Thumb Flexion & Opposition

Question 19

Opponens Pollicis Origin & Insertion

Answer 19

O=Flexor Retinaculum & Trapezium

I=Radial Surface of the Entire Length of the 1st Met

Question 20

Opponens Pollicis Action

Answer 20

Opposition

Question 21

Adductor Pollicis Origin & Insertion

Answer 21

O=Capitate, 2nd, & 3rd Mets

I=Base of 1st Proximal Phalanx

Question 22

Adductor Pollicis Action

Answer 22

Adduct Thumb; Assists w/Thumb Flexion

Question 23

Abductor Digiti Minimi Origin & Insertion

Answer 23

O=Pisiform & FCU Tendon

I=Base of 5th Proximal Phalanx

Question 24

Abductor Digiti Minimi Action

Answer 24

Abduct Pinky; Assists w/Opposition

Question 25

Flexor Digiti Minimi Brevis Origin & Insertion

Answer 25

O=Flexor Retinaculum & Hook of Hamate I=Base of 5th Proximal Phalanx

Question 26

Flexor Digiti Minimi Brevis Action

Answer 26

Flex Pinky; Assists w/Opposition

Question 27

Opponens Digiti Minimi Origin & Insertion

Answer 27

O=Flexor Retinaculum & Hook of Hamate I=Shaft of 5th Met

Question 28

Opponens Digiti Minimi Action

Answer 28

Pinky Opposition

Question 29

Lumbricals Origin & Insertion

Answer 29

O=FDP Tendons I=Extensor Aponeurosis on Posterior Surfaces 2nd-5th Fingers

Question 30

Lumbricals Action

Answer 30

Extend IP's 2-5 & Flex MCP's 2-5

Question 31

Pad's Origin & Insertion

Answer 31

O=Base of 2nd, 4th, & 5th Mets I=Base of Proximal Phalanx of Related Finger & Extensor Apneurosis

Question 32

Pad's Action

Answer 32

Adduct Fingers 1, 2, 4, & 5 Assists w/MCP Flexion of 1st, 2nd, 4th, & 5th Fingers Assists w/IP Extension of 1st, 2nd, 4th, & 5th Fingers

Question 33

Dab's Origin & Insertion

Answer 33

O=Adjacent Sides of all Mets I=Base of 2nd-4th Proximal Phalanges & Extensor Aponeurosis

Question 34

Dab's Action

Answer 34

Abduct Fingers 2-4 Assists w/MCP Flexion of 2nd-4th Fingers Assists w/IP Extension of 2nd-4th Fingers