KIN 100 - Cubital Fossa, Elbow, Radioulnar Joints (lecture 9)

Question 1

Cubital fossa

Answer 1

triangular shaped, shallow depression on the anterior aspect of the elbow joint

Question 2

List the three boundaries of the cubital fossa

Answer 2

1. An imaginary line drawn between medial and lateral epicondyles
2. Pronator teres (medially)
3. Brachioradialis (laterally)

Question 3

What is the floor of the cubital fossa. formed by

Answer 3

formed by the brachialis and supinator muscles

Question 4

What is the roof of the cubital fossa formed by

Answer 4

the bicipital aponeurosis, connective tissue and skin

Question 5

What are the contents of the cubital fossa

Answer 5

1. Biceps brachii tendon
2. Brachial artery
3. Median nerve

Question 6

What crosses the cubital fossa superficially

Answer 6

the median cubital vein

Question 7

What articulation does the elbow joint consist of

Answer 7

the humeroulnar and humeroradial articulations

Question 8

What does the trochlea of the humerus articulate with

Answer 8

the trochlear notch of the ulna

Question 9

What does the capitulum of the humerus articulate with

Answer 9

the head of the radius

Question 10

What kind of synovial joint is the elbow joint and the movement it permits

Answer 10

hinge joint, elbow flexion and extension

Question 11

Intrinsic ligaments of the elbow joint

Answer 11

• Radial collateral ligament
• Ulnar collateral ligment
• Anular ligament

Question 12

Where does the anular ligament encircle

Answer 12

the head of the radius, allowing it to pivot during pronation and supination

Question 13

What’s the Tommy John surgery

Answer 13

ulnar collateral ligament reconstruction after ruptering/stretched/torn

Question 14

Describe the proximal radioulnar joint

Answer 14

head of the radius articulates with the radial notch of the ulna

Question 15

What synovial joint is the proximal radioulnar joint

Answer 15

pivot, synovial joint

Question 16

What action does the proximal radioulnar joint allow

Answer 16

pronation and supination

Question 17

What is the dislocation of the radial head commonly known as

Answer 17

subluxation

Question 18

Describe the attachment of the distal radioulnar joint

Answer 18

head of the ulna articulates with the ulnar notch of the radius

Question 19

What kind of synovial joint is the distal radioulnar joint

Answer 19

pivot joint

Question 20

What unites the distal aspects of radius and ulna together

Answer 20

an articular disc

Question 21

what actions does the distal radioulnar joint allow

Answer 21

pronation and supination