Arthrology of The Elbow Flashcards
The elbow joint consists of which 2 articulations?
HUMEROULNAR
+
HUMERORADIAL
Name the articulation where anteriorly, the trochlea of the humerus articulates with the trochlear notch of the ulna?
HUMEROULNAR
Posteriorly, the ____________ articulates with the olecranon fossa.
***In full extension
OLECRANON
Name the articulation where the capitulum articulates with the head of the radius?
HUMERORADIAL
Which part of the humerus does the head of the radius articulate with?
CAPITULUM
humeroradial
What does the trochlea of the humerus articulate with?
TROCHLEAR NOTCH OF ULNA
humeroulnar
The elbow is a synovial _________ joint.
HINGE
The elbow is a very stable joint responsible for the actions of?
FLEXION/EXTENSION
Considering anatomical position, the radius is located __________ on the forearm, and the ulna is located_________.
RADIUS LATERAL
+
ULNA MEDIAL
The lateral (radial) collateral ligament is located proximally on the lateral epicondyle, and distally where?
ANNULAR LIGAMENT OF THE RADIUS
The medial (ulnar) collateral ligament is located proximally on the medial epicondyle, and distally in which 2 locations?
CORONOID PROCESS
+
OLECRANON PROCESS
What lies between the olecranon and the overlying skin?
OLECRANON BURSA
Name the joint where the head of the radius articulates with the radial notch of the ulna?
PROXIMAL RADIOULNAR JOINT
What type of synovial joint is the proximal radioulnar joint?
PIVOT
The head of the radius _________ within the ring formed by the __________ ligament.
ROTATES
+
ANNULAR
What are the available movements at the proximal radioulnar joint?
PRONATION
+
SUPINATION
(rotational movements of forearm)
Name the main bone which moves during pronation/supination movements of forearm?
RADIUS
In pronation of the forearm, the palm is facing which way?
DOWN
In supination of the forearm, the palm is facing which way?
UP
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?
annUlar LIGAMENT
What is the purpose of the annular ligament?
HOLDS HEAD OF RADIUS IN PLACE
Name the joint where the head of the ulna articulates with the ulnar notch of the radius?
DISTAL RADIOULNAR JOINT
What type of synovial joint is the distal radioulnar joint?
PIVOT
The distal radioulnar joint allows for movement of the ________ around a relatively fixed ________.
RADIUS
+
ULNA
What are the available movements at the distal radioulnar joint?
PRONATION
+
SUPINATION
(rotational movements of forearm)
There is an __________ _______ which binds the distal radius and ulna together?
ARTICULAR DISC
The ulna does, or does not articulate with the carpal bones?
DOES NOT
What separates the distal radioulnar joint from the wrist joint cavities?
THE ARTICULAR DISC
The palmar and dorsal radioulnar ligaments attach at the ________ ulna and the ________ radius.
(dorsal and palmar surfaces)
DISTAL
Between the radius and the ulna is an ___________ __________.
INTEROSSEOUS MEMBRANE
The interosseous membrane serves to ___________ the 2 bones and the proximal and distal radioulnar joints.
STABILIZE
A distal dislocation of the head of the radius out of the annular ligament is referred to as what?
SLIPPED ELBOW
_________ varus or valgus stands for the deviation at the elbow.
CUBITIS
