Lecture 4.1

Question 1

The elbow joint is compound meaning

Answer 1

more than two articular surfaces in the capsule

Question 2

The blood supply of the Elbow joint is frm…

Answer 2

Branches of brachial artery

Question 3

What innervates the elbow joint?

Answer 3

Musculocutaneous, radial and ulnar nerve

Question 4

the medial colateral ligament of the elbow has _ bands

Answer 4

3

Anterior, poserior, oblique

Question 5

where is the olecranon bursae

Answer 5

Question 6

where is the annular ligament

Answer 6

Question 7

Fat pads help spread _______ _____-

Answer 7

synovial fluid

as well as cushion

Question 8

The Carrying angle is greater in ___ and _____

Answer 8

women and adults

Question 9

A medial displacement of the forearm is a

_____

Answer 9

varus

valcus = lateral

Question 10

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

Answer 10

supernated,

acts across two joints - greater pull

Question 11

Triceps insert on the ….

Answer 11

olecranon process of the Ulna

Question 12

Which number is the anconeus?

Answer 12

11 - anconeus;

Question 13

The interossesus membrane transmits the forces when _______ and ___________

Answer 13

The interossesus transmits the forces when supernating and pronating

at distal end - 80%

Question 14

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

Answer 14

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

Question 15

The proximal radioulnar joint is a ____ joint

Answer 15

The proximal radioulnar joint is a pivot joint

ring , within which rotation occurs

Question 16

The sacciform recess allows ___ movement, and a lax joint

Answer 16

fluid movement

Question 17

true or false

The annular ligaemeent attaches to the radius

Answer 17

false

Question 18

True or False

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

Answer 18

true

Question 19

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

Answer 19

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

Question 20

the reason the ulna doesn’t make contact with the carpal bones is…

Answer 20

the Articular disc (triangular) ligament sits in between

provides cushioning

Question 21

nerve supply of distal radioulnar joint?

Answer 21

median and radial interosseous nerves

Question 22

Blood supply of distal radioulnar joint/

Answer 22

Anterior, posterior interosseous arteries

Question 23

What muscles act in pronation?

Answer 23

pronator teres (proximal)

pronator quadratis (distal)

Assisted by:

Flexor carpi radialis

palmaris longus

brachioradialis

Question 24

Which muscles act in supination
?

Answer 24

Supinator

Biceps brachii

Assisted by:

extensor pollicis longus

Extensor carpi radialis longus

Question 25

The annuluar ligament is lax in children which can cause

Answer 25

radial head displacement - pulled superiorly

Question 26

True or false

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

Answer 26

true