Pathology Lesson 7 Flashcards
What is phonation?
Speaking
What is ventilation?
Movement of air in an out
What is respiration?
Exchange of air
What are the three functions of the pulmonary system?
- Gas Exchange
- Acid-Base Balance
- Phonation
How many splits occur in the respiratory tree before you get to the alveoli?
26
What are seven branches of the respiratory tree?
- Trachea
- Primary bronchi
- Secondary bronchi
- Tertiary bronchi
- Bronchiole
- Terminal bronchiole
- Alveoli
What kind of fruit do alveoli look like?
A bunch of grapes
How many alveoli are there?
Around 300 million
True or False:
Membrane at alevoli is insterile.
False
(It IS sterile!)
How many kinds of circulation are there in the lungs?
Two
What causes the sterility of the alevolar membranes?
Alveolar macrophages + ciliary current
What two walls are fused together?
Alveolar and capillary
Describe how the capillaries are positioned around the alevoli.
Like a cobweb
What is Boyle’s Law?
Inverse relationship between volume and pressure when temperature is constant.
T is constant! Inverse between V and P.
Boyle’s Law proves that an increase of decrease in lung volume results in what two things?
Inspiration and Expiration