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Questions and Answers
What separates the thoracic cavity from the abdominopelvic cavity?
What separates the thoracic cavity from the abdominopelvic cavity?
- Liver
- Stomach
- Diaphragm (correct)
- Intestine
Which cavity is NOT part of the thoracic cavity?
Which cavity is NOT part of the thoracic cavity?
- Abdominal cavity (correct)
- Pericardial cavity
- Pleural cavity
- Mediastinum
What is the function of pleural fluid?
What is the function of pleural fluid?
- Pumps air into the lungs
- Circulates blood
- Aids in digestion
- Lubricates the visceral and parietal pleurae (correct)
What does the visceral pleura cover?
What does the visceral pleura cover?
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What is contained within the mediastinum cavity?
What is contained within the mediastinum cavity?
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Which cavity is the pleural cavity connected with?
Which cavity is the pleural cavity connected with?
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Which part of the pleura lines the walls of the thorax?
Which part of the pleura lines the walls of the thorax?
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What are the two divisions of the ventral body cavity?
What are the two divisions of the ventral body cavity?
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Study Notes
Ventral Body Cavity
- Divided into two divisions by the diaphragm: Thoracic Cavity and Abdominopelvic Cavity
Thoracic Cavity
- Divided into three cavities: Pleural Cavity, Mediastinum, and Pericardial Cavity
Pleural Cavities
- Also known as pleural space
- Lined with a serous membrane called the pleura
- Consists of parietal and visceral parts
- Parietal pleura lines the walls of the thorax, diaphragm, and mediastinum
- Visceral pleura covers the surface of the lung
- Pleural cavity between parietal and visceral pleurae is filled with pleural fluid
- Functions of pleural fluid:
- Acts as a lubricant between visceral and parietal pleurae during respiration
- Helps hold pleural membranes together
Mediastinum Cavity
- A space in the thoracic cavity between left and right pleural cavities
- Contains many structures, including:
- Organs
- Blood vessels
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