Elbow

Question 1

proximal end of radius: head

Answer 1

articulates with capitulum and radial notch of ulna (proximal end)

Question 2

proximal end of radius: radial tuberosity

Answer 2

attachment of biceps brachii

Question 3

proximal end of ulna: trochlea notch

Answer 3

articulates with trochlea condyle of humerus,

- olecranon + coranoid process = trochlea notch

Question 4

elbow joint: classification

Answer 4

synovial hinge, monoaxial

Question 5

elbow joint: movement

Answer 5

flexion, extension of forearm

Question 6

radioulnar joint: classification

Answer 6

synovial pivot, rotation monoaxial

Question 7

radioulnar joint: movement

Answer 7

pronation, supination

- radius rotates around ulna

Question 8

elbow joint: articulating surfaces

Answer 8

• trochlea of humerus w/ trochlear notch of ulna

- capitulum of humerus with head of radius

Question 9

elbow joint: ligaments

Answer 9

• radial (lateral) collateral

- ulnar (medial) collateral

Question 10

elbow joint: blood supply

Answer 10

anastomotic network: collater and recurrent branches of

• brachial
• profunda brachii
• radial
• ulnar arteries

Question 11

elbow joint: innervation

Answer 11

• mainly radial, musculocutaneous
• ulnar
• median nerves

Question 12

= elbow joint?

Answer 12

trochlear notch + trochlea, capitulum + head of radius

Question 13

fat pads location in elbow joint:

Answer 13

radial, coronoid, olecranon fossae

Question 14

ligament around radius and function:

Answer 14

• allows head of radius slide against radial notch,

- pivot on capitulum for pro/supination

Question 15

radial collateral lig: attachments

Answer 15

lateral epicondyle - annular lig.

Question 16

ulnar collateral lig: parts

Answer 16

anterior, posterior and oblique bands

Question 17

eg. carrying angle

Answer 17

• natural angle of forearm in anatomical position (supination)

Question 18

proximal radioulnar joint: articulating surfaces

Answer 18

• head of radius, radial notch of ulna

- annular lig

Question 19

proximal radioulnar joint: ligaments

Answer 19

annular lig

Question 20

proximal radioulnar joint: movements

Answer 20

pronation, supination of forearm (w/ distal radioulnar joint)

Question 21

partial dislocation of radius:

Answer 21

subluxation

Question 22

cubital fossa: borders

Answer 22

• triangular depression
• btw medial and lateral epicondyles
• pronator teres
• brachioradialus

Question 23

cubital fossa: contents

Answer 23

MBBR

• median nerve
• brachial artery
• biceps tendon
• radial nerve

Question 24

bicipital aponeurosis: function

Answer 24

covers/ protects artery and nerve

- from tendon to deep fascia of forearm