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Multiple Choice
The humerus articulates with all of the following bones except the:
A
Radius
B
Scapula
C
Ulna
D
Clavicle
Verified step by step guidance
1
Step 1: Begin by identifying the humerus, which is the long bone in the upper arm. It plays a key role in forming the shoulder joint and the elbow joint.
Step 2: Understand the anatomical articulations of the humerus. The humerus articulates proximally with the scapula at the glenohumeral (shoulder) joint, forming a ball-and-socket connection.
Step 3: Examine the distal articulations of the humerus. It connects with the radius and ulna at the elbow joint. Specifically, the capitulum of the humerus articulates with the head of the radius, and the trochlea of the humerus articulates with the trochlear notch of the ulna.
Step 4: Consider the clavicle. The clavicle does not directly articulate with the humerus. Instead, it forms part of the pectoral girdle and connects to the scapula at the acromioclavicular joint and to the sternum at the sternoclavicular joint.
Step 5: Conclude that the humerus articulates with the scapula, radius, and ulna, but not with the clavicle. This makes the clavicle the correct answer to the question.