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rib comp 1
rib comp qestions
Question | Answer |
---|---|
Function of the bony thorax | to protect the heart and lungs, support the walls of the pleural cavity, support the diaphragm during inspiration and allow for change in volume with respiration. |
what forms the bony thorax? | sternum, 12 pair of ribs, 12 thoracic vertebrae |
how long is the sternum? | 6” |
what type of bone is the sternum? | flat bone |
purpose of the sternum | support the clavicle and superior manubrial angles, and provides attachment for the 1st 7 pair of ribs. |
Name the 3 parts that make up the sternum | manubrium, body, xiphoid process |
What is special about the xiphoid process? | it doesn’t ossify until late in life |
The xiphoid process can serve as a landmark for what internal structures? | the superior border of the liver and inferior border of the heart |
The costal cartilage is made up of what? | hyaline cartilage |
Alternate names for the sternal body | corpus or gladiolus |
How long is the body of the sternum? | 4” |
T10 is a landmark for what soft tissue anatomy? | superior border of the liver and inferior border of the heart. |
How does the location of sternal angle change when the patient is supine? | it moves superiorly |
What runs through the costal grove? | arteries, veins and nerves |
Which ribs attach directly to the sternum? | 1-7 |
How do the ribs move with inspiration? | the anterior ribs move anteriorly, superiorly and laterally |
How do the ribs move with expiration? | the anterior ribs move posteriorly, inferiorly and medially |
How are the ribs situated in the body? | they slant anterior and inferiorly 3-5 inches. |
True ribs | 1-7 |
False ribs | 8-12 |
Floating ribs | 11-12 |
Parts of a rib (1-10) | head, neck, tubercle, body. |
Parts of a rib (11-12) | head, tubercle (without facet), body. |
What makes up the SC joints? | sternal extremity of the clavicle and clavicular notches of the manubrium. |
What makes up the costovertebral joints? | head of the rib and demifacets of 2 adjacent vertebrae |
What makes up the costotransverse joint? | tubercle of a rib and transverse process of a vertebra |