Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
Nares
|
*opening of the nose where respiration begins.
*the nasal cavity is lined with cilia, mucus membranes and blood capillaries. *Air moves to the pharnyx or throat * these cillia, musus and nostril hairs sweep out particles, trap pathogens and filthers out. |
|
Lungs
|
*spongy tissues lined with aveoli and blood capillaries.
* Aveoli sacs are at the end of the branchial tree and this is where the gas exchange occurs. *Oxygen in the air, moves from the aveoli to the capillaries and the carbondioxide from the capillaries moves to the aveoli |
|
Henry's law
|
*The process of respiration follows Henry's law: there should be an equilibrium concentration of oxygen dissolved in the blood.
|
|
Thermoregulation
|
*Breathing helps to regulate body temperature. We lose heat when we breath because we breath out warm moist air.
|
|
Diaphragm
|
*is a thin dom shaped muscles with tendons. which separates the abdominal cavity from the chest cavity
*muscle that pulls downward when contracting, which increases chest volume, decreases pressure, and sucks air into lungs. |
|
Rib cage
|
* protects the lungs
* expands during breathe intake * |
|
Intrapulmonary and Interpleural pressure
|
* Intrapulmornary: pressure within lung
*interpleural: pressure outside of lung. intrapleural pressure is always less than the intrapulmonary pressure. * The intrapulmonary pressure is subatmospheric during inspiration and greater than the atmospheric pressure during expiration. |