Lecture 4.1 Flashcards Preview

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Flashcards in Lecture 4.1 Deck (26):
1

The elbow joint is compound meaning

more than two articular surfaces in the capsule

2

The blood supply of the Elbow joint is frm...

Branches of brachial artery

3

What innervates the elbow joint?


Musculocutaneous, radial and ulnar nerve

4

the medial colateral ligament of the elbow has _ bands

3

Anterior, poserior, oblique

5

where is the olecranon bursae

6

where is the annular ligament

7

Fat pads help spread _______ _____-

synovial fluid

 

as well as cushion

8

The Carrying angle is greater in ___ and _____

women and adults

9

A medial displacement of the forearm is a

_____

 

 

varus

 

valcus = lateral

10

The biceps are able to produce greater contraction if the arm is supernated or pronated?

supernated,

 

acts across two joints - greater pull

11

Triceps insert on the ....

olecranon process of the Ulna

12

Which number is the anconeus?

11 - anconeus;

13

The interossesus membrane transmits the forces when _______ and ___________

The interossesus transmits the forces when supernating and pronating

 

at distal end - 80%

14

__________ at one end of the radius/ulna will likel lead to dislocation at the other end

Fracture at one end of the radius/ulna will likel lead to dislocation at the other end

15

The proximal radioulnar joint is a ____ joint

The proximal radioulnar joint is a pivot joint

 

ring , within which rotation occurs

16

The sacciform recess allows ___ movement, and a lax joint

fluid movement

17

true or false

 

The annular ligaemeent attaches to the radius

false

18

True or False

 

The annular ligament blends with the radioulnar ligament and attahes on the lateral epicondyle

true

19

The distal radioulnar joint b/w the ___ of ulna and ulnar ____ on radius

The distal radioulnar jointis b/w the head of ulna and ulnar notch on radius

20

the reason the ulna doesn't make contact with the carpal bones is...

 the Articular disc (triangular) ligament sits in between

 

provides cushioning

21

nerve supply of distal radioulnar joint?

 

median and radial interosseous nerves

22

Blood supply of distal radioulnar joint/

 

Anterior, posterior interosseous arteries

23

What muscles act in pronation?

 

pronator teres (proximal)

pronator quadratis (distal)


Assisted by:

 

Flexor carpi radialis

palmaris longus

brachioradialis

24

Which muscles act in supination
?

Supinator

Biceps brachii

 

Assisted by:

extensor pollicis longus

Extensor carpi radialis longus

25

The annuluar ligament is lax in children which can cause

 

 

radial head displacement - pulled superiorly

26

True or false

 

the styloid processes of the ulna/radius are susceptible to avulsion fractures

true