Flashcards in Pleura Deck (25):
There are 2 layers of pleura which are?
Outer and inner layers which are continuous at root of lung.
The outer layer is called?
The inner layer is called?
The parietal layer lies against what?
Inner aspect of thoracic cage
The visceral layer lies against what?
The parietal layer is what?
Sensitive to pain
The parietal layer is supplied by what/
Intercostal and phrenic N
The visceral layer is what?
Insensitive to pain
The visceral layer is innervated by what?
Has autonomic innervation mainly from Vagus N
The pulmonary ligament is a sleeve of pleura at root of lung and functions as what?
Anatomical dead space allowing for expansion of pulmonary veins
THe pleura have what parts?
The cervical pleura (cupola) extends where?
Above 1st rib
The extension of the lung into the neck is limited by what?
The suprapleural membrane is a fibrous structure that extends from what?
Tip of transverse process of 7th cervical vertebrae to inner border of 1st rib.
The pleura are supplied by branches of what?
Anterior and posterior intercostal arteries
The upper 6 pairs of anterior intercostal arteries are derived from what?
Internal thoracic A (branch of 1st part of subclavian A)
The next three (7th to 9th) pairs are derived from what?
Musculophrenic branch of internal thoracic A
What arteries are form the costal branch of costocervical trunk of subclavian A?
1st and 2nd posterior intercostal A
3rd to 11th posterior intercostal arteries are derived from what?
Descending part of thoracic aorta
Venous drainage is via what system?
Azygos venous system
Lymphatics of the lung drain from periphery of lungs to what?
Pulmonary nodes then
Bronchopulmonary nodes then
Tracheobronchial nodes into
Para-tracheal nodes finally into
Mediastinal lymphatic trunks
Pulmonary nodes are found where?
The bronchopulmonary nodes are found where?
Hilum of lung
Where are the tracheobronchial nodes found?
Bifurcation of trachea