What is the name of the upper portion of the sternum quizlet?
manubrium sterni is the broad, upper part of the sternum.
What is the lower portion of the sternum called?
The xiphoid process (xiphisternum/xiphoid) is triangular shaped and forms the distal-most part of the sternum.
What are the 3 parts of the sternum called?
Sternum
| Function | Protection of the lungs, heart and thoracic blood vessels from mechanical damage |
|---|---|
| Parts | Manubrium – most superior region that articulates with clavicles and the first pair of ribs Body – articulates with 3rd – 7th ribs Xiphoid process – most inferior part |
What is the joint between the upper and middle portion of the sternum called?
The sternocostal joints are joints between the upper seven costal cartilages and the sternum (Fig. 3.25). The joint between rib I and the manubrium is not synovial and consists of a fibrocartilaginous connection between the manubrium and the costal cartilage.
Where is the manubrium located?
the sternum The manubrium is the thickest and strongest portion of the sternum and is therefore the area that is most likely to survive inhumation. It is broad and thick along its superior margin and narrows towards its inferior articulation with the mesosternum (Jit et al., 1980).
Where is the sternum located quizlet?
The sternum, or breastbone, functions at its upper end to connect the shoulder girdle (clavicle and scapula) to the thorax. In addition, it anchors the anterior ends of paired ribs 1-7 via cartilage.
What is the manubrium?
The manubrium is the thickest and strongest portion of the sternum and is therefore the area that is most likely to survive inhumation. It is broad and thick along its superior margin and narrows towards its inferior articulation with the mesosternum (Jit et al., 1980).
What is a xiphoid?
The xiphoid process is the smallest region of the sternum, or breastbone. It's made up of cartilage at birth but develops into bone in adulthood. It's located where the lower ribs attach to the breastbone.
What are the sternum bones called?
sternum, also called breastbone, in the anatomy of tetrapods (four-limbed vertebrates), elongated bone in the centre of the chest that articulates with and provides support for the clavicles (collarbones) of the shoulder girdle and for the ribs. Its origin in evolution is unclear.
What is costochondral?
Each of your ribs is connected to your breastbone by a piece of cartilage. The point where your rib connects to this cartilage is known as your costochondral joint. Costochondral separation is an injury that occurs when one or more of your ribs separates from this cartilage.
What is a manubrium in anatomy?
The manubrium is the superior part of the sternum lying at the level of T3-T4 vertebrae. It forms the superior wall of the anterior mediastinum and its superior border also contributes to the superior thoracic aperture (thoracic inlet).
What is the sternum quizlet?
Sternum. Chest bone. Manubrium. Shield shaped part of sternum. Body.
What is sternum area?
Your sternum is a bone that's located in the middle of your chest. It's also sometimes referred to as the breastbone. Your sternum protects the organs of your torso from injury and also serves as a connection point for other bones and muscles.
What bone is the manubrium on?
the sternum The manubrium (Latin for "handle") is the broad upper part of the sternum. It has a quadrangular shape, narrowing from the top, which gives it four borders. The suprasternal notch (jugular notch) is located in the middle at the upper broadest part of the manubrium. This notch can be felt between the two clavicles.
Where is the xiphoid?
sternum The xiphoid process is the most distal edge of the sternum or the breastbone. The sternum contains 3 major portions: the manubrium, the body, and the xiphoid process. Its name comes from the Greek word "xiphos," which means straight sword.
Why is it called the xiphoid process?
Etymology. The word xiphoid derives from the Greek word xiphos for straight sword, the tip of which the process somewhat resembles. The xiphoid process is a translation of Latin processus xiphoides.
What bones are in the upper chest?
The thorax is commonly known as the chest. The bones in the chest are the thoracic vertebrae, the twelve pairs of ribs, and the sternum. Connecting the upper ten pairs of ribs to the sternum is the costal cartilage. When talking about bones in the chest, let's first start off with the rib cage.
What is costochondral cartilage?
Medical Definition of costal cartilage : any of the cartilages that connect the distal ends of the ribs with the sternum and by their elasticity permit movement of the chest in respiration.
What is manubrium of sternum?
The manubrium. The manubrium is the thickest and strongest portion of the sternum and is therefore the area that is most likely to survive inhumation. It is broad and thick along its superior margin and narrows towards its inferior articulation with the mesosternum (Jit et al., 1980).
Why is it called manubrium?
The manubrium (Latin for "handle") is the broad upper part of the sternum. It has a quadrangular shape, narrowing from the top, which gives it four borders.
What is the sternum made of?
The sternum is composed of highly vascular tissue, covered by a thin layer of compact bone which is thickest in the manubrium between the articular facets for the clavicles. The inferior sternopericardial ligament attaches the pericardium to the posterior xiphoid process.
What is the xiphoid?
The xiphoid process is the most distal edge of the sternum or the breastbone. The sternum contains 3 major portions: the manubrium, the body, and the xiphoid process. Its name comes from the Greek word "xiphos," which means straight sword.
What is the sternum?
Your sternum is a bone that's located in the middle of your chest. It's also sometimes referred to as the breastbone. Your sternum protects the organs of your torso from injury and also serves as a connection point for other bones and muscles.
What does costochondral mean?
Medical Definition of costochondral : relating to or joining a rib and costal cartilage a costochondral junction.
Where is costochondral located?
The costochondral joint is a connection between a rib and its costal cartilage. On the thoracic wall, it occurs where the bone ends and cartilage begins. The joint is formed by two articular surfaces; the roughened cup-shaped anterior end of the rib and the rounded lateral end of the costal cartilage.
What is manubrium Definition?
Definition of manubrium : an anatomical process or part shaped like a handle: such as. a : the uppermost segment of the sternum of humans and many other mammals. b : the process that bears the mouth of a hydrozoan : hypostome.
Where is the Costochondral joint?
The costochondral joints are joints of the thoracic wall that connect the sternal ends of the ribs and their respective costal cartilages. They are structurally classified as primary cartilaginous joints (synchondrosis) in which bones are joined by hyaline cartilage.
What is the mediastinum?
Listen to pronunciation. (MEE-dee-uh-STY-num) The area between the lungs. The organs in this area include the heart and its large blood vessels, the trachea, the esophagus, the thymus, and lymph nodes but not the lungs.
Where is the costochondral joint?
Costochondritis is the medical term for inflammation of the cartilage that joins your ribs to your breastbone (sternum). This area is known as the costochondral joint. Cartilage is tough but flexible connective tissue found throughout the body, including in the joints between bones.
What’s another name for manubrium?
Also called presternum. Anatomy. the uppermost of the three portions of the sternum.