Arthrology of The Elbow

Question 1

The elbow joint consists of which 2 articulations?

Answer 1

HUMEROULNAR
+
HUMERORADIAL

Question 2

Name the articulation where anteriorly, the trochlea of the humerus articulates with the trochlear notch of the ulna?

Answer 2

HUMEROULNAR

Question 3

Posteriorly, the ____________ articulates with the olecranon fossa.
***In full extension

Answer 3

OLECRANON

Question 4

Name the articulation where the capitulum articulates with the head of the radius?

Answer 4

HUMERORADIAL

Question 5

Which part of the humerus does the head of the radius articulate with?

Answer 5

CAPITULUM

humeroradial

Question 6

What does the trochlea of the humerus articulate with?

Answer 6

TROCHLEAR NOTCH OF ULNA

humeroulnar

Question 7

The elbow is a synovial _________ joint.

Answer 7

HINGE

Question 8

The elbow is a very stable joint responsible for the actions of?

Answer 8

FLEXION/EXTENSION

Question 9

Considering anatomical position, the radius is located __________ on the forearm, and the ulna is located_________.

Answer 9

RADIUS LATERAL
+
ULNA MEDIAL

Question 10

The lateral (radial) collateral ligament is located proximally on the lateral epicondyle, and distally where?

Answer 10

ANNULAR LIGAMENT OF THE RADIUS

Question 11

The medial (ulnar) collateral ligament is located proximally on the medial epicondyle, and distally in which 2 locations?

Answer 11

CORONOID PROCESS
+
OLECRANON PROCESS

Question 12

What lies between the olecranon and the overlying skin?

Answer 12

OLECRANON BURSA

Question 13

Name the joint where the head of the radius articulates with the radial notch of the ulna?

Answer 13

PROXIMAL RADIOULNAR JOINT

Question 14

What type of synovial joint is the proximal radioulnar joint?

Answer 14

PIVOT

Question 15

The head of the radius _________ within the ring formed by the __________ ligament.

Answer 15

ROTATES
+
ANNULAR

Question 16

What are the available movements at the proximal radioulnar joint?

Answer 16

PRONATION
+
SUPINATION
(rotational movements of forearm)

Question 17

Name the main bone which moves during pronation/supination movements of forearm?

Answer 17

RADIUS

Question 18

In pronation of the forearm, the palm is facing which way?

Answer 18

DOWN

Question 19

In supination of the forearm, the palm is facing which way?

Answer 19

UP

Question 20

Name the U-shaped ligament that runs from the anterior surface of the radial notch around the head of the radius, to the posterior surface of the radial notch?

Answer 20

annUlar LIGAMENT

Question 21

What is the purpose of the annular ligament?

Answer 21

HOLDS HEAD OF RADIUS IN PLACE

Question 22

Name the joint where the head of the ulna articulates with the ulnar notch of the radius?

Answer 22

DISTAL RADIOULNAR JOINT

Question 23

What type of synovial joint is the distal radioulnar joint?

Answer 23

PIVOT

Question 24

The distal radioulnar joint allows for movement of the ________ around a relatively fixed ________.

Answer 24

RADIUS
+
ULNA

Question 25

What are the available movements at the distal radioulnar joint?

Answer 25

PRONATION + SUPINATION (rotational movements of forearm)

Question 26

There is an __________ _______ which binds the distal radius and ulna together?

Answer 26

ARTICULAR DISC

Question 27

The ulna does, or does not articulate with the carpal bones?

Answer 27

DOES NOT

Question 28

What separates the distal radioulnar joint from the wrist joint cavities?

Answer 28

THE ARTICULAR DISC

Question 29

The palmar and dorsal radioulnar ligaments attach at the ________ ulna and the ________ radius. (dorsal and palmar surfaces)

Answer 29

DISTAL

Question 30

Between the radius and the ulna is an ___________ __________.

Answer 30

INTEROSSEOUS MEMBRANE

Question 31

The interosseous membrane serves to ___________ the 2 bones and the proximal and distal radioulnar joints.

Answer 31

STABILIZE

Question 32

A distal dislocation of the head of the radius out of the annular ligament is referred to as what?

Answer 32

SLIPPED ELBOW

Question 33

_________ varus or valgus stands for the deviation at the elbow.

Answer 33

CUBITIS