LAB FINAL - RESPIRATORY SYSTEM Flashcards
4 Layers of the Tracheal Wall are…
Mucosa, Submucosa, Hyaline Cartilage, Adventita
Identify the branching of the airways from the Trachea to the alveolar sacs
Trachea -> Primary Bronchus -> Secondary Bronchi -> Bronchioles -> Terminal Bronchioles -> Respiratory Bronchioles -> Alveolar Ducts -> Alveolar Sacs
What is the Carnia?
The point where trachea divides into right and left main bronchi
How many lobar bronchi are in the right and left lungs?
3 in the right and 2 in the left - there is one for each lobe of the lung
What are the specific names of each lobar bronchus in each lung?
Right lung: Superior lobar bronchus, middle lobar bronchus, inferior lobar bronchus
Left Lung: Superior lobar bronchus, inferior lobar bronchus
The pleural membrane of the lung is divided into the…
Deep layer = Visceral pleura
Superficial layer = parietal pleura
Space in between the layers = Pleural Cavity
The base of the lungs extends to which costal cartilage ?
the 6th costal cartilage
The segment of the lung tissues that each segmental bronchus supplies is called…
Bronchopulmonary segment
Each segment of of lung tissue has small compartments called…
Lobules
Each Lobule contains…
Lymphatic vessle, arteriole and venule, and branch from terminal bronchiole wrapped in elastic connective tissue
What is the respiratory membrane?
Alveolar and capillary walls
List the 4 layers of the respiratory membrane from deep to superficial…
- Types I & II alveolar cells and mactophages
- Epithelial Basement membrane
- Capillary Basement membrane
- Capillary Endothelium
Which structures make up the conducting zone? What is the function of the conducting zone?
- Nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and terminal bronchioles
- the function is to filter, warm and moisten the air, and conduct it into the lungs
Which structures make up the respiratory zone? What is the function of the respiratory zone?
- Respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli.
- the function is to exchange gas (oxygen and carbon dioxide) between the air and blood
Usually Arteries are red and veins are blue. Why is this the opposite case for pulmonary circulation?
In the pulmonary circulation arteries are bringing deoxygenated blood AWAY from the heart and to the lungs. Veins are bringing Oxygenated blood back to the heart.
