Lung And Pleura Flashcards
What are the two types of pleura?
Visceral and Parietal
Visceral pleura tightly covers the lung surface while parietal pleura lines the thoracic walls.
What is the function of the pleural cavity?
Contains serous pleural fluid that lubricates pleural surfaces
This allows the layers of pleura to slide smoothly over each other during respiration.
What are the parts of the parietal pleura?
- Costal
- Mediastinal
- Diaphragmatic
- Cervical
Each part has specific locations and functions related to the thoracic cavity.
What are the main components of the thoracic cavity?
- Heart
- Thoracic part of great vessels
- Thoracic part of the trachea
- Esophagus
- Thymus
- Lymph nodes
- Pleura
- Pleural cavity
These structures are essential for various functions including circulation and respiration.
What is the significance of the hilum of the lung?
It is where the visceral and parietal pleura are continuous and where structures enter and exit the lung
Structures include bronchi, pulmonary arteries, and veins.
True or False: The right main bronchus is longer and more vertical than the left main bronchus.
False
The right main bronchus is shorter, wider, and more vertical than the left.
Fill in the blank: The _______ is a potential pleural space located at the border of the mediastinal pleura and the costal pleura.
Costomediastinal recess
This recess is important in the context of pleural effusion.
What are bronchopulmonary segments?
Pyramidal-shaped segments of the lung, each with its own tertiary bronchus, pulmonary artery, and vein
There are 10 segments in the right lung and 8 to 10 in the left lung.
What is the role of bronchial arteries?
Supply blood for nutrition of lung structures and visceral pleura
They arise from the thoracic aorta and support the lung’s structural integrity.
What does the term ‘costodiaphragmatic recess’ refer to?
A potential pleural space that allows for lung expansion during respiration
It is located between the diaphragm and the lower margin of the pleura.
How many lobes does the left lung have?
Two lobes
The left lung consists of a superior and inferior lobe, separated by an oblique fissure.
What is the function of the tracheobronchial tree?
Conducts air from the larynx to the lungs
The structure is supported by C-shaped rings of hyaline cartilage.
What are the three surfaces of the lung?
- Costal
- Mediastinal
- Diaphragmatic
Each surface interacts with different anatomical structures and has specific characteristics.
What is the primary function of the lungs?
Oxygenate the blood by bringing inspired air into close relation with venous blood in pulmonary capillaries
This is vital for respiration and maintaining oxygen levels in the body.
What are the visceral pleurae?
The membranes that cover the lungs
What regions do the peripheral regions of the lung refer to?
The outer parts of the lung