Intro. to Anatomy of Lungs, Airways & Blood Supply Flashcards
(20 cards)
How many lobes does the right & left lung have ?
Right: 3
Left: 2
What is the name of the complete ring of cartilage that begins at the top of the Trachea ?
Cricoid cartilage
Name the bronchi from largest to smallest
Primary left & right bronchus
Lobar bronchi
Segmental bronchi
Bronchioles
What helps maintain the shape of the Trachea ?
C-Shaped rings of cartilage
What structure sits posterior to the Trachea ?
Esophagus
What is the name of the bifurcation of the trachea, and at what vertebral level does this occur ?
The Carina at T4
If the patient aspirates, where will the substance most likely end up ?
The right lung due to the steepness of the right main bronchus
Name the 2 pleural membranes and what they cover ?
Visceral pleura - Lungs
Parietal pleura - Ribs
What is the name for the space left in the left lung for the heart ?
Cardiac notch
What is the purpose of type I Alveolar cells ?
Gas exchange
What is the purpose of type II Alveolar cells ?
Surfactant producers
What is the purpose of Surfactant ?
Reduces surface tension and allows Alveoli to be easily inflated.
Detergent/lubricant
What is the purpose of the pulmonary circulation ?
To deliver CO2 to the lungs and pick up O2
What is the purpose of the systemic circulation ?
Delivers O2 and picks up CO2
What is ‘Anatomical dead space’ ?
The conduction part of the airway (upper airway)
What is the average volume of Oxygen that is exchange/consumed ?
250ml
What is the average volume of Carbon Dioxide that is exchanged/produced ?
200ml
What is the epithelium which lines the airway ?
Pseudo-stratified ciliated columnar epithelium
As we progresses toward to the Alevoli what happens to the epithelium ?
More squamous, less mucous and less cilia. Thinner for gas exchange.
What is the purpose of mucous in the airways and what cell produces this mucous ?
moistens air
traps particles
Goblet cells
