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Questions and Answers
Which of the following structures is NOT directly protected by the rib cage?
Which of the following structures is NOT directly protected by the rib cage?
- Spleen
- Liver
- Heart
- Kidney (correct)
What is the name of the structure that attaches the true ribs to the sternum?
What is the name of the structure that attaches the true ribs to the sternum?
- Xiphoid process
- Manubrium
- Clavicle
- Costal cartilage (correct)
What is the function of the visceral pleura?
What is the function of the visceral pleura?
- To protect the lungs from infection
- To line the outer wall of the thorax
- To attach the lungs to the ribs
- To lubricate the lungs (correct)
Which of the following is NOT a characteristic of the clavicle?
Which of the following is NOT a characteristic of the clavicle?
Which of the following statements is true about the mediastinum?
Which of the following statements is true about the mediastinum?
What is the primary function of the floating ribs?
What is the primary function of the floating ribs?
What is the thymus located in?
What is the thymus located in?
What is the number of lobes in the left lung?
What is the number of lobes in the left lung?
What is the term for the cartilage that connects the false ribs to the sternum?
What is the term for the cartilage that connects the false ribs to the sternum?
What is the consequence of damage to the SC or CC ligaments?
What is the consequence of damage to the SC or CC ligaments?
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Study Notes
Ribcage Structure
- The ribcage consists of 12 pairs of ribs
- True ribs (1-7) have direct attachments
- False ribs (8-10) attach via shared costal cartilage
- Floating ribs (11-12) have no attachment
Sternum
- Consists of three parts: manubrium, body, and xiphoid
- Located anterior to the heart, aorta, and bronchi
Clavicle
- S-shaped bone with little protective function
- Fractures often occur at the curve of the bone
Ligament Damage
- Damage to the sternoclavicular (SC) or costoclavicular (CC) ligaments can cause posterior displacement, which is a medical emergency
Mediastinum
- A layer of fascia connecting the sternum to the thoracic vertebrae
- Contains the heart, thymus, bronchi, and aorta
Heart Structure
- Surrounded by the pericardium
- Has four chambers
- Connected to the aorta
Lung Structure
- Covered by visceral pleura
- Parietal pleura lines the outer wall of the thorax
- Right lung has three lobes, while the left lung has two lobes
- Protects the liver, spleen, and kidney
Ribcage Structure
- The ribcage consists of 12 pairs of ribs
- True ribs (1-7) have direct attachments
- False ribs (8-10) attach via shared costal cartilage
- Floating ribs (11-12) have no attachment
Sternum
- Consists of three parts: manubrium, body, and xiphoid
- Located anterior to the heart, aorta, and bronchi
Clavicle
- S-shaped bone with little protective function
- Fractures often occur at the curve of the bone
Ligament Damage
- Damage to the sternoclavicular (SC) or costoclavicular (CC) ligaments can cause posterior displacement, which is a medical emergency
Mediastinum
- A layer of fascia connecting the sternum to the thoracic vertebrae
- Contains the heart, thymus, bronchi, and aorta
Heart Structure
- Surrounded by the pericardium
- Has four chambers
- Connected to the aorta
Lung Structure
- Covered by visceral pleura
- Parietal pleura lines the outer wall of the thorax
- Right lung has three lobes, while the left lung has two lobes
- Protects the liver, spleen, and kidney
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