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Flashcards on Anatomy of the Sternum
Click on the flashcard to see the answer
What are the three parts of the sternum?
The three parts of the sternum are the manubrium, body, and xiphoid process.
What is the function of the xiphoid process?
The xiphoid process provides attachment to some abdominal muscles, and serves as a landmark for procedures such as cardiopulmonary resuscitation.
What is the shape of the manubrium?
The manubrium is quadrangular in shape and wider superiorly.
Which part of the sternum is located inferiorly?
The xiphoid process is located inferiorly, and is the smallest and most inferior part of the sternum.
What is the function of the sternum?
The sternum protects the heart, lungs, and major blood vessels from physical trauma.
What structure is located at the junction between the manubrium and the body?
The sternal angle, also known as the angle of Louis, is located between the manubrium and the body of the sternum.
What is the shape of the body of the sternum?
The body of the sternum is long and flat, with a slightly concave anterior surface.
What structures articulate with the clavicles on the manubrium?
The clavicular notches on the superior border of the manubrium articulate with the clavicles.
What is the function of the costal notches on the lateral border of the body of the sternum?
The costal notches provide attachment points for the costal cartilages of the first seven pairs of ribs.
What type of joint is formed between the manubrium and the body of the sternum?
The manubriosternal joint is a synchondrosis, which is a type of cartilaginous joint that allows slight movement.
What is the shape of the xiphoid process?
The xiphoid process is a small, thin, and pointed structure that is located inferiorly on the sternum.
What is the shape of the sternum when viewed from the side?
The sternum has a slight curvature when viewed from the side, with a convex manubrium and a concave body.
What is the clinical significance of the sternal angle?
The sternal angle serves as a useful landmark for locating the second rib, which is important for assessing the heart and lungs.
How does the shape of the sternum differ between males and females?
In females, the manubrium is shorter and wider, and the body of the sternum is more curved than in males.
What is the embryological origin of the sternum?
The sternum is derived from the somites of the mesoderm embryonic tissue.
What are the three parts of the sternum?
The three parts of the sternum are the manubrium, body, and xiphoid process.
What is the function of the xiphoid process?
The xiphoid process provides attachment to some abdominal muscles, and serves as a landmark for procedures such as cardiopulmonary resuscitation.
What is the shape of the manubrium?
The manubrium is quadrangular in shape and wider superiorly.
Which part of the sternum is located inferiorly?
The xiphoid process is located inferiorly, and is the smallest and most inferior part of the sternum.
What is the function of the sternum?
The sternum protects the heart, lungs, and major blood vessels from physical trauma.
What structure is located at the junction between the manubrium and the body?
The sternal angle, also known as the angle of Louis, is located between the manubrium and the body of the sternum.
What is the shape of the body of the sternum?
The body of the sternum is long and flat, with a slightly concave anterior surface.
What structures articulate with the clavicles on the manubrium?
The clavicular notches on the superior border of the manubrium articulate with the clavicles.
What is the function of the costal notches on the lateral border of the body of the sternum?
The costal notches provide attachment points for the costal cartilages of the first seven pairs of ribs.
What type of joint is formed between the manubrium and the body of the sternum?
The manubriosternal joint is a synchondrosis, which is a type of cartilaginous joint that allows slight movement.
What is the shape of the xiphoid process?
The xiphoid process is a small, thin, and pointed structure that is located inferiorly on the sternum.
What is the shape of the sternum when viewed from the side?
The sternum has a slight curvature when viewed from the side, with a convex manubrium and a concave body.
What is the clinical significance of the sternal angle?
The sternal angle serves as a useful landmark for locating the second rib, which is important for assessing the heart and lungs.
How does the shape of the sternum differ between males and females?
In females, the manubrium is shorter and wider, and the body of the sternum is more curved than in males.
What is the embryological origin of the sternum?
The sternum is derived from the somites of the mesoderm embryonic tissue.
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