The body, also called the blade or gladiolus, is right in the middle of the sternum. It connects to the third through seventh ribs directly and the eighth through tenth ribs indirectly. The xiphoid process is the bottom tip of the sternum. The supraspinatus muscle is a rotator cuff muscle located in the shoulder, specifically in the supraspinatus fossa, a concave depression in the rear…. The quadratus plantae is a muscle in the foot that extends from the anterior front of the calcaneus heel bone to the tendons of the digitorum….
The depressor labii inferioris muscle is a four-sided facial muscle located in the jaw area that draws the lower lip down and to the side. The muscles of the face give it general form and contour, help you outwardly express your feelings, and enable you to chew your food. The quadriceps femoris is a group of muscles located in the front of the thigh.
The Latin translation of 'quadriceps' is 'four headed,' as the group…. The palmaris brevis muscle lies just underneath the skin. It is a short muscle on the flat of the hand. The muscle begins at the flexor retinaculum in…. The movement of the upper arm and shoulder is controlled by a group of four muscles that make up the rotator cuff.
The largest and strongest muscle in…. The extensor pollicis longus muscle begins at the ulna and the interosseous membrane, a tough fibrous tissue that connects the ulna and the radius in…. The biceps brachii, sometimes known simply as the biceps, is a skeletal muscle that is involved in the movement of the elbow and shoulder.
It is a…. The skeletal system is the foundation of your body, giving it structure and allowing for movement. In addition, the powerful pectoralis major muscles that adduct and flex the humerus at the shoulder attach to the anterior surface of the body of the sternum and manubrium. The smallest and most inferior region of the sternum, the xiphoid process, begins life as a region of flexible hyaline cartilage attached to the end of the body of the sternum.
The xiphoid process slowly ossifies throughout childhood and adulthood until around age 40 when all of its cartilage is replaced by bone. Regardless of its degree of ossification, the xiphoid process serves as an important attachment point for the tendons of the diaphragm, rectus abdominis, and transverse abdominis muscles.
Several undesired events can take place at the sternum. During open heart surgery, the sternum must be cut in half along its long axis to provide access to the heart. After surgery, the two halves of the sternum must be wired back together with stainless steel wire to prevent their separation. Any extreme stresses placed on the broken sternum after surgery, such as lifting heavy objects, can result in the wires cutting through the bony tissue and severely damaging the sternum.
Another risk associated with the sternum is the fracturing of the xiphoid process during CPR, which can potentially lead to the xiphoid process breaking off and lodging into one of the delicate vital organs below it. By: Tim Taylor. Last Updated: Jul 16, All Rights Reserved. Innerbody Research does not provide medical advice, diagnosis, or treatment. You must consult your own medical professional.
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