Biomechanics of Elbow Joint Quiz

<p>4 (B)</p> Signup and view all the answers

<p>Sliding motion of the ulnar trochlear ridge on the humeral trochlear groove (B)</p> Signup and view all the answers

<p>Two (B)</p> Signup and view all the answers

<p>None (A)</p> Signup and view all the answers

<p>6 (A)</p> Signup and view all the answers

<p>Modified or loose hinge joint (B)</p> Signup and view all the answers

<p>Sliding motion of the ulnar trochlear ridge on the humeral trochlear groove (C)</p> Signup and view all the answers

The elbow joint allows for movement in only one plane, allowing the arm to bend and straighten.

Two ligaments directly contribute to the stability and function of the elbow joint.

A pivot joint, like the radioulnar joint, allows for rotational movement, enabling the forearm to turn the hand.

Four muscles are directly involved in controlling the movements of the radius and ulna.

The humeroulnar joint is where the ulnar trochlear ridge slides on the humeral trochlear groove, enabling the elbow's flexion and extension.

The radioulnar joint has two degrees of freedom, allowing for both rotation and movement along the length of the bones.

There are no muscles directly attached to the humeroradial joint.

Six ligaments support and stabilize the proximal and distal radioulnar joints.

The elbow joint is a modified hinge joint, meaning it primarily allows for flexion and extension but has a slight degree of rotation.

The humeroulnar joint allows for the sliding movement of the ulna against the humerus.