Elbow, forearm and wrist

Question 1

Joints within the joint capsule of the elbow

Answer 1

Humeroradial, humeroulnar and proximal radioulnar

Question 2

Classifications of the humeroulnar joint

Answer 2

Structurally synovial, functionally hinge.

Question 3

Articulatory surfaces of the humeroulnar joint

Answer 3

The trochlea of the humerus and the trochear fossa of the ulna

Question 4

Classifications of the humeroradial joint

Answer 4

Structurally synovial, functionally hinge or pivot.

Question 5

Articulatory surfaces of the humeroradial joint

Answer 5

The capitulum of the humerus and the superior surface of the radial head

Question 6

Classifications of the proximal radioulnar joint

Answer 6

Structurally synovial, functionally pivot

Question 7

Articulatory surfaces of the proximal radioulnar joint

Answer 7

The radial notch of the ulna and the medial aspect of the radial head.

Question 8

Ligaments of the elbow

Answer 8

Annular, medial and lateral colalteral ligament

Question 9

Annular ligament

Answer 9

Wraps around the radial head and attaches to the radial notch of the ulna. Functions to stabilize and increase the articulatory surface of the proximal radioulnar joint.

Question 10

Medial and lateral collateral ligaments of the elbow.

Answer 10

Are thickenings of he joint capsule

Question 11

Joints of the forearm

Answer 11

Proximal and distal radioulnar joints

Question 12

Classifications of the distal radioulnar joint

Answer 12

Structurally synovial, functionally pivot

Question 13

Radiocarpal joint classifications

Answer 13

Structurally synovial, functionally ellipsoidal or condyloid

Question 13

Articulatory surfaces of the distal radioulnar joint

Answer 13

The head of the ulna and the ulnar notch of the radius.

Question 14

Non-contractile structures of the wrist

Answer 14

Articulation disc, medial and collateral ligaments, flexor retinaculum and the extensor retinaculum.

Question 14

Articulatory surfaces of the radiocarpal joint

Answer 14

Distal surface of the radius, the scaphoid and a portion of the lunate.

Question 15

Medial collateral ligament of the wrist

Answer 15

Also called ulnar carpal ligament. Attaches the distal ulna and the triquetral. Becomes taut during radial deviation.

Question 15

Articulation disc

Answer 15

Fibrocartilagenous disc between the distal ulna and the triquetral and a portion of the lunate; part of the wrist.

Question 16

Is the ulna involved in the wrist joint?

Answer 16

No, the articulation disc fills the space between the ulna and the hand.

Question 17

Lateral collateral ligament of the wrist

Answer 17

Also called the radial carpal ligament. Attaches the distal radius and the scaphoid. Becomes taut during ulnar deviation.

Question 18

Flexor retinaculum

Answer 18

Strong band of connective tissue on the palmar surface of the hand. Provides a conduit for the flexor tendons and creates the ceiling of the carpal tunnel.

Question 19

Ceiling of the carpal tunnel

Answer 19

Flexor retinaculum

Question 19

Components of a synovial joint

Answer 19

Joint capsule, synovial membrane, synovial fluid, hyaline cartilage

Question 20

Extensor retinaculum

Answer 20

Strong band of connective tissue of the dorsal surface of the hand. Provides conduit for the tendons of the extensor muscles.

Question 21

Classifications of diarthrotic joints

Answer 21

Hinge, pivot, saddle, ellipsoidal, gliding, ball and socket.

Question 22

Uniaxial joints

Answer 22

Hinge and pivot

Question 23

Biaxial joints

Answer 23

Saddle, ellipsoidal/condyloid

Question 24

Multiaxial joints

Answer 24

Gliding, ball and socket