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Flashcards in Tuesdays lecture Deck (23):
1

what type of joint is the distal radioulnar joint (DRUJ)

Pivot type of synoival joint

2

what is the distal radioulnar joint?

-round head of the ulna articulates with the ulnar notch of medial side of distal radius
-TFCC binds the ends of the radius and ulna together
-functions to help transmit loads from the hand to the forearm

3

muscles that attach to the lateral epicondyle

extensor carpi ulnaris
extensor digiti minimi
extensor digitorium
extensor carpi brevis
supinator

4

posterior compartment of the forearm

-all innervated by the radial nerve
-held in place by the extensor retinaculum
-6 different dorsal compartments

5

muscles thats attach to the lateral supracondylar crest

extensor carpi longus
brachioradialis

6

In the first compartment of the posterior forearm

abductor pollicis longus
extensor pollicis brevis

7

2nd compartment of the posterior forearm

extensor carpi radialis longus and brevis

8

3rd compartment of the posterior forearm

extensor pollicis longus

9

4th compartment of the posterior forearm

extensor digitorum
extensor indicis

10

5th compartment of the posterior forearm

extensor digiti minimi

11

6th compartment of the forearm

extensor carpi ulnaris

12

Borders of the Anatomical snuffbox

lateral border:
Extensor pollicis brevis and the Abductor Pollicis Longus

Medial border:
extensor pollicis longus

13

floor of the anatomical snuffbox

scaphoid carpal bone

14

contents of the anatomical snuff box

radial artery and nerve

15

Lateral epicondylosis (Tennis elbow)

-effects the extensor muscles of the forearm that attach to the lateral epicondyle
-caused by repetitive motion

16

Wrist drop

-Radial nerve damage
-(The radial nerve innervates almost all the extensors so drops the hand)

17

DeQuervain's Syndrome

-inflammation of the structures in the first dorsal compartment
-pain increase with a stretch to these structures
-the extended and abducted position for a long period of time

18

Where is the DeQuervain's Syndrome more common?

-Daycare worker and new mothers

19

What does supracondyle fracture cause?

damage to the medial nerve and brachial artery

20

What is the anterior portion of the forearm?

Voler

21

What is the posterior portion of the forearm

Dorsum

22

Ulna Deviation

-larger ulna devation
-side to side wrist motion, towards the ulna

23

Radial Deviation

-side to side wrist motion, toward the radial