Hand

Question 1

____ is the key point of function for the upper extremity.

Answer 1

Hand

Question 2

____ joint is a saddle joint. Trapezium bone with thumb metacarpal. Allows more mobility than the other ____ joints in the hand.

Answer 2

CMC

Question 3

What motions does the CMC joint do?

Answer 3

Flex., Ext., Abd., Add., Opposition, Reposition

Question 4

____ joint is a non-axial plane synovial joint. More stability than mobility.

Answer 4

CMC Joints 2nd-5th Fingers

Question 5

____ _____ is the most mobile of the fingers.

Answer 5

5th CMC

Question 6

Knuckles

Answer 6

Metacarpophalangeal Joint (MCP)

Question 7

____ ____ is uniaxial. Flex., Ext.

Answer 7

Thumb MCP

Question 8

____- ____ ____ is biaxial condyloid joints. Flex., Ext., Abd., and Add.

Answer 8

2nd-5th Finger MCP

Question 9

_____ finger is the reference point for adduction/abduction.

Answer 9

Middle

Question 10

Fibrous band that spans the wrist on the anterior surface of the wrist.

Answer 10

Flexor Retinaculum

Question 11

Main function is to hold the flexor tendons close to the wrist, preventing the tendons from pulling away from the wrist.

Answer 11

Flexor Retinaculum

Question 12

Flexor retinaculum is made up of?

Answer 12

Palmar carpal ligament and transverse carpal ligament.

Question 13

Attaches to the pisiform and hook of the hamate on the medial side and to the scaphoid and the trapezium laterally.

Answer 13

Transverse Carpal Ligament

Question 14

Arches over the carpal bones forming a tunnel through which the median nerve, flexor tendons of the fingers, and thumb pass.

Answer 14

Transverse Carpal Ligament

Question 15

Fibrous band transversing the wrist on the posterior side.

Answer 15

Extensor Retinaculum

Question 16

Main function is to hold the extensor tendons close to the wrist, especially during wrist extension.

Answer 16

Extensor Retinaculum

Question 17

Extensor Hood

Answer 17

Extensor Expansion Ligament

Question 18

Small, triangular-shaped flat aponeurosis covering of the dorsum and sides of the proximal phalanx of the fingers.

Answer 18

Extensor Expansion Ligament

Question 19

Main function is to keep phalanx extensor tendon in the midline.

Answer 19

Extensor Expansion Ligament

Question 20

The palm assumes the ___ position.

Answer 20

Cupped

Question 21

____, _____, _____ are the three arches that are responsible for the hand shape.

Answer 21

Proximal carpal arch, distal carpal arch, longitudinal arch

Question 22

Formed by a proximal end of the metacarpals and the carpal bones. Maintained by the flexor retinaculum.

Answer 22

Proximal carpal arch

Question 23

Formed by the metacarpal heads.

Answer 23

Distal carpal arch

Question 24

Begins at the wrist and runs the length of the metacarpal and phalanges for each digit.

Answer 24

Longitudinal arch

Question 25

Perpendicular to the two other arches.

Answer 25

Longitudinal arch

Question 26

Cross the wrist as well as the hand.

Answer 26

Extrinsic Muscles

Question 27

Do not cross the wrist.

Answer 27

Intrinsic Muscles

Question 28

Flexor digitorum superficials, flexor digitorum profundus.

Answer 28

Anterior Extrinsic Muscles

Question 29

Extensor digitorum, extensor digit minimi, extensor indices.

Answer 29

Posterior Extrinsic Muscles

Question 30

Abductor pollicis longus and extensor pollicis brevis form the lateral border.Extensor pollicis longus form the medial border.

Answer 30

Anatomical Snuffbox

Question 31

Function to move the thumb.

Answer 31

Thenar Muscles

Question 32

Act primarily on the little finger.

Answer 32

Hypothernar Muscles