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Questions and Answers
Which organ occupies the majority of the thoracic cavity?
Which organ occupies the majority of the thoracic cavity?
What is the main function of the heart in the thoracic cavity?
What is the main function of the heart in the thoracic cavity?
Which structure in the thoracic cavity is responsible for conducting air and blood to and from the lungs?
Which structure in the thoracic cavity is responsible for conducting air and blood to and from the lungs?
Which structure in the thoracic cavity is responsible for the passage of nutrients from the head to the abdomen?
Which structure in the thoracic cavity is responsible for the passage of nutrients from the head to the abdomen?
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What is the main purpose of the domed shape of the thoracic cage?
What is the main purpose of the domed shape of the thoracic cage?
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What is the main function of the joints and thinness of the ribs in the thoracic cage?
What is the main function of the joints and thinness of the ribs in the thoracic cage?
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Which type of rib is connected to the sternum through its own costal cartilages?
Which type of rib is connected to the sternum through its own costal cartilages?
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Which type of rib has cartilages that are connected to the cartilage of the rib above them?
Which type of rib has cartilages that are connected to the cartilage of the rib above them?
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Which type of rib does not connect, even indirectly, with the sternum?
Which type of rib does not connect, even indirectly, with the sternum?
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Which ribs are considered as false ribs?
Which ribs are considered as false ribs?
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Which part of the rib articulates with the corresponding transverse process of the vertebra?
Which part of the rib articulates with the corresponding transverse process of the vertebra?
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What is the function of the neck in relation to the rib?
What is the function of the neck in relation to the rib?
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Where is the costal groove located on the rib?
Where is the costal groove located on the rib?
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Which rib is the broadest and most sharply curved?
Which rib is the broadest and most sharply curved?
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Which rib has a rough area on its upper surface called the tuberosity for serratus anterior?
Which rib has a rough area on its upper surface called the tuberosity for serratus anterior?
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Which ribs have only one facet on the heads and articulate with a single vertebra?
Which ribs have only one facet on the heads and articulate with a single vertebra?
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Which ribs are classified as typical ribs?
Which ribs are classified as typical ribs?
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Which ribs form a continuous, articulated, cartilaginous costal margin with the costal cartilages just superior to them?
Which ribs form a continuous, articulated, cartilaginous costal margin with the costal cartilages just superior to them?
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How many intercostal spaces are there in total?
How many intercostal spaces are there in total?
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Which ribs anchor the anterior end of the rib to the sternum, limiting its overall movement?
Which ribs anchor the anterior end of the rib to the sternum, limiting its overall movement?
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Which intercostal space lies between ribs 4 and 5?
Which intercostal space lies between ribs 4 and 5?
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Which nerve is associated with the subcostal space below the 12th rib?
Which nerve is associated with the subcostal space below the 12th rib?
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Study Notes
Thoracic Cavity
- The heart occupies the majority of the thoracic cavity.
- The main function of the heart in the thoracic cavity is to pump blood throughout the body.
Respiratory System
- The trachea is responsible for conducting air to and from the lungs in the thoracic cavity.
Circulatory System
- The esophagus is responsible for the passage of nutrients from the head to the abdomen in the thoracic cavity.
Thoracic Cage
- The main purpose of the domed shape of the thoracic cage is to provide protection for the heart and lungs.
- The main function of the joints and thinness of the ribs in the thoracic cage is to allow for flexibility and expansion during breathing.
Ribs
- True ribs are connected to the sternum through their own costal cartilages.
- False ribs have cartilages that are connected to the cartilage of the rib above them.
- Floating ribs do not connect, even indirectly, with the sternum.
- Ribs 7-10 are considered as false ribs.
- The head of the rib articulates with the corresponding transverse process of the vertebra.
- The neck of the rib functions as a pivot point, allowing the rib to move up and down during breathing.
- The costal groove is located on the underside of the rib.
- The 7th rib is the broadest and most sharply curved.
- The 5th rib has a rough area on its upper surface called the tuberosity for serratus anterior.
- Ribs 3-6 have only one facet on the heads and articulate with a single vertebra.
- Ribs 3-6 are classified as typical ribs.
- Ribs 7-10 form a continuous, articulated, cartilaginous costal margin with the costal cartilages just superior to them.
Intercostal Spaces
- There are 11 intercostal spaces in total.
- The true ribs anchor the anterior end of the rib to the sternum, limiting its overall movement.
- The 4th intercostal space lies between ribs 4 and 5.
- The subcostal space below the 12th rib is associated with the 12th thoracic nerve.
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Description
Test your knowledge of the thorax and chest with this quiz! From the anatomy of the thoracic wall to the pectoral girdle, challenge yourself with questions on this important part of the body.
