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How many roots are there in sternocleidomastoid MUSCLE?
There are two roots of the sternocleidomastoid muscle: the sternal head, arising from the manubrium of the sternum, and the clavicular head, arising from the medial third of the clavicle.
By what name is the junction between the manubrium and the sternal body known?
The junction between the manubrium and the sternal body is known as the manubriosternal joint.
Which bones articulate with the clavicle?
The bones that articulate with the clavicle are the manubrium of the sternal end, and the acromion of the scapula.
What bone has a sternal and acromial end?
Clavicle
What is the anatomy of the breast muscle?
The breast muscle, also known as the pectoralis major, is a large, fan-shaped muscle located in the chest area. It is composed of two main parts: the clavicular head and the sternal head. The clavicular head originates from the collarbone (clavicle) and the sternal head originates from the sternum (breastbone). These two parts come together to form the bulk of the chest muscle, which is responsible for movements like pushing and hugging.
What three parts is the sternum made up of?
The xiphoid process is the most inferior portion of the sternum. The superior section is the manubrium, and the medial portion is the body.
Jugular notch?
The depression at the most proximal portion of the sternum. In an intact body, you can feel this notch located between sternal ends of the clavicle.
What is level of sternal notch?
The sternal notch, also known as the jugular notch, is located at the superior border of the manubrium of the sternum, typically at the level of the T2-T3 vertebrae. It is an important anatomical landmark used in medical assessments and procedures, such as central line placement. The sternal notch serves as a reference point for the location of various structures in the neck and thorax.
The union of the manubrium and the body of the sternum is an important landmark of the chest and is callled?
The manubrium is united to the body of the sternum either by an amphiarthrodial joint-a piece of fibrocartilage connecting the segments-or by a diarthrodial joint, in which the articular surface of each bone is clothed with a lamina of cartilage.
What does the Pectoralis move?
Pectoralis moves the shoulder joint. It has a sternal and clavicular end , it helps in shoulder joint adduction, cross arm adduction and overhead. Adduction movement means bringing the shoulder towards midline
Is the sternal angle an important landmark for finding the position of the second rib?
Yes, the sternal angle, also known as the angle of Louis, is an important anatomical landmark for locating the second rib. It is found at the junction of the manubrium and the body of the sternum and typically aligns with the second rib. By palpating the sternal angle, clinicians can easily identify the second rib and subsequent ribs, facilitating procedures such as auscultation or the placement of medical devices.
Shoulder Adductor Muscles?
In clams, it's used to open and close the shell.
