THORAX ABDOMEN AND PELVIS

MEDICAL

THORACIC WALL

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What connects the ulna to the humerus?

A	the head
B	Olecranon process
C	styloid process
D	trochlear notch

Explanation:

Detailed explanation-1: -Humeroulnar joint is the joint between the trochlea on the medial aspect of the distal end of the humerus and the trochlear notch on the proximal ulna.

Detailed explanation-2: -The trochlear notch (semilunar notch) of the ulna articulates with the trochlear articular surface of the distal humerus.

Detailed explanation-3: -The trochlear notch (/ˈtrɒklɪər/), also known as semilunar notch and greater sigmoid cavity, is a large depression in the upper extremity of the ulna that fits the trochlea of the humerus (the bone directly above the ulna in the arm) as part of the elbow joint. It is formed by the olecranon and the coronoid process.

Detailed explanation-4: -The upper end of the ulna presents a large C-shaped notch-the semilunar, or trochlear, notch-which articulates with the trochlea of the humerus (upper arm bone) to form the elbow joint.

There is 1 question to complete.