Master Appendicular Skeleton Anatomy Quiz

1. What structure is located under the shaded area?

Ulnar nerve

Trochlea under shaded area

Medial epicondyle

Radial head

The correct structure under the shaded area is the trochlea, which is a bony ridge on the humerus that articulates with the ulna in the elbow joint.

Explanation

The correct structure under the shaded area is the trochlea, which is a bony ridge on the humerus that articulates with the ulna in the elbow joint.

2. What is the anatomical term for the depression located on the posterior aspect of the distal humerus?

Medial epicondyle

Coronoid fossa

Trochlea

Olecranon fossa

The olecranon fossa is a depression on the distal humerus that accommodates the olecranon process of the ulna during elbow extension. The trochlea is a smooth, grooved articular process on the distal humerus that articulates with the ulna. The coronoid fossa is an anterior depression that receives the coronoid process of the ulna during elbow flexion. The medial epicondyle is a bony prominence on the medial side of the distal humerus.

Explanation

The olecranon fossa is a depression on the distal humerus that accommodates the olecranon process of the ulna during elbow extension. The trochlea is a smooth, grooved articular process on the distal humerus that articulates with the ulna. The coronoid fossa is an anterior depression that receives the coronoid process of the ulna during elbow flexion. The medial epicondyle is a bony prominence on the medial side of the distal humerus.

3. What is located in the anterior view of the elbow?

Medial epicondyle

Olecranon process

Lateral epicondyle

Radial head

The lateral epicondyle is a bony prominence on the outer part of the elbow. The medial epicondyle is located on the inner part of the elbow, the olecranon process is the bony tip of the elbow, and the radial head is the top of the radius bone that forms part of the elbow joint.

Explanation

The lateral epicondyle is a bony prominence on the outer part of the elbow. The medial epicondyle is located on the inner part of the elbow, the olecranon process is the bony tip of the elbow, and the radial head is the top of the radius bone that forms part of the elbow joint.

4. What are the anatomical landmarks located at the distal end of the radius and ulna?

Tibial Tuberosity and Fibular Styloid Process

Iliac Crest and Greater Trochanter

F Styloid process of RadiusL Styloid Process of ulna

Acromion Process and Olecranon Process

The correct answer refers to the specific bony projections located at the distal end of the radius and ulna, which are important for various functions related to hand and wrist movements.

Explanation

The correct answer refers to the specific bony projections located at the distal end of the radius and ulna, which are important for various functions related to hand and wrist movements.