ANATOMY

Detailed explanation-1: -The suprasternal notch (jugular notch) is at the superior segment of the manubrium sterni. On either side, the left and right clavicular notches are present. The clavicular notches of the sternum articulate with the medial end of each clavicle to form the sternoclavicular joints.

Detailed explanation-2: -The manubrium is the most superior portion of the sternum that articulates with the clavicle-forming the sternoclavicular (SC) joint. The body or middle portion of the sternum serves as the anterior attachment for ribs 2 through 7. The inferior tip of the sternum is called the xiphoid process, meaning “sword shaped.”

Detailed explanation-3: -Sternum, posterior. The manubrium is the most massive, thickest, and squarest of three main sternal elements. It is the superior-most element of the sternum and is the widest part of this bone.

Detailed explanation-4: -Superior to the manubrium we find the suprasternal (jugular) notch. The manubrium forms part of the origin of pectoralis major as well as part of the origin for the sternocleidomastoid, sternohyoid, and sternothyroid muscles.

Detailed explanation-5: -The manubrium is a large quadrangular shaped bone that lies above the body of the sternum. The lower border is narrower, is quite rough, and articulates with the body with a thin layer of cartilage in between.