Pleura and Lungs Flashcards
(28 cards)
What is the costal part of the parietal pleura?
Covers the internal surfaces of the thoracic wall and is separated by the endothoracic fascia
What are the four parts of the parietal pleura?
Costal part, mediastinal part, diaphargmatic part, cervical pleura
What is the mediastinal part of the parietal pleura?
Covers the lateral aspects of the mediastinum
What is the diaphragmatic part of the parietal pleura?
Covers the superior surface of the diaphragm on each side of the mediastinum
What is the cervical pleura of the parietal pleura?
Forms a cup shaped dome over the apex of the lung
What is the potential space between the parietal and visceral pleura?
Pleural cavity
What can be found in the pleural cavity?
Parietal fluid which lubricates the pleural surface and allows the layers to slide over one another during respiration
What innervates the lungs and visceral pleura?
Parasympathetic fibers from the vagus nerve (CN X) and sympathetic fibers from the sympathetic trunks
What innervates the costal and peripheral parietal pleura?
Intercostal nerves
What innervates the central and diaphragmatic parietal pleura?
Phrenic nerve
What are the three surfaces of the lungs?
Costal, mediastinal, and diaphragmatic
What are the three borders of the lungs?
Anterior, inferior, and posterior borders
What encloses the root of the lungs?
Parietal sleeve
What structures form the root of the lung?
Main bronchus, pulmonary vessels, bronchial vessels, lymphatic vessels, and nerves
What supports the walls of the trachea and bronchi?
C shaped hyaline cartilages
What does the respiratory bronchiole give rise to?
2 to 11 alveolar ducts
What does each alveolar duct give rise to?
5 to 6 alveolar sacs
What is the basic structural unit of gas exchange of lung?
Pulmonary alveolus
Where do the right and left pulmonary arteries arise from?
The pulmonary trunk at the level of the sternal angle
What type of blood do the pulmonary arteries carry?
Poorly oxygenated (venous) blood
Where do pulmonary arteries carry blood?
Away to the lungs for oxygenation
What type of blood do pulmonary veins carry?
Well oxygenated (arterial) blood
Where do pulmonary veins carry blood?
From the lungs to the left atrium of the heart
What do the bronchial arteries supply?
The root of the lungs, supporting tissues of lung, and visceral pleura
