Podcast
Questions and Answers
What is the function of the sternum and ribs?
What is the function of the sternum and ribs?
- To aid in digestion
- To protect the lungs
- To support the spine
- To protect the heart (correct)
Which part of the sternum is roughly square in shape?
Which part of the sternum is roughly square in shape?
- Manubrium (correct)
- Sternal body
- Xiphoid process
- None of the above
How many pairs of ribs do humans have?
How many pairs of ribs do humans have?
- 30
- 24 (correct)
- 36
- 12
Why are the first seven pairs of ribs referred to as vertebral sternal ribs?
Why are the first seven pairs of ribs referred to as vertebral sternal ribs?
Where does the head of each rib connect to the vertebra?
Where does the head of each rib connect to the vertebra?
How are the vertebral sternal ribs different from the vertebral chondral ribs?
How are the vertebral sternal ribs different from the vertebral chondral ribs?
What is the function of the vertebral sternal ribs?
What is the function of the vertebral sternal ribs?
Which part of the sternum is located beneath the manubrium?
Which part of the sternum is located beneath the manubrium?
Where does each rib connect to the vertebra via the articular facet on the tubercle?
Where does each rib connect to the vertebra via the articular facet on the tubercle?
What is the function of vertebral chondral ribs?
What is the function of vertebral chondral ribs?
Flashcards
Sternum
Sternum
The flat bone in the front of the chest, forming the middle part of the rib cage.
Vertebral sternal rib
Vertebral sternal rib
A type of rib directly attached to the sternum (breastbone) via cartilage.
Manubrium
Manubrium
The uppermost part of the sternum, shaped like a wide, flat triangle.
Sternal body
Sternal body
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Vertebral chondral rib
Vertebral chondral rib
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Rib head
Rib head
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Superior costal facet
Superior costal facet
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Rib tubercle
Rib tubercle
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Rib shaft
Rib shaft
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Rib cage
Rib cage
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Study Notes
Sternum and Ribs
- The sternum, also known as the breastbone, provides protection for the heart, lungs, and major blood vessels.
- The manubrium, the upper part of the sternum, is roughly square in shape.
Ribs
- Humans have 12 pairs of ribs, which are divided into two categories: vertebral sternal ribs and vertebral chondral ribs.
- The first seven pairs of ribs are referred to as vertebral sternal ribs because they connect to the sternum and vertebrae.
- The head of each rib connects to the vertebra at the costovertebral joint.
- Vertebral sternal ribs are different from vertebral chondral ribs in that they attach directly to the sternum via costal cartilages.
- The function of vertebral sternal ribs is to provide protection and support for the thoracic cavity.
Vertebral Chondral Ribs
- The xiphoid process, the lower part of the sternum, is located beneath the manubrium.
- Each rib connects to the vertebra via the articular facet on the tubercle.
- The function of vertebral chondral ribs is to provide protection and support for the thoracic cavity, but they do not attach directly to the sternum.
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Description
Learn about the anatomy of the sternum, ribcage, and vertebra in this educational video. Understand the structure and functions of these essential skeletal components.
