#2 A+ Graded
4 phases of respiration - Correct Answer 1. Pulmonary ventilation
2. External gas exchange
3. Gas transport in the blood
4. Internal gas exchange
Respiration - Correct Answer Inhalation and exhalation of air. The process by which O2 is obtained from the environment and delivered to the cells.
Structures of the Respiratory System - Correct Answer Nasal cavity,Pharynx, Larynx, Trachea, Bronchi, Alveoli
pulmonary ventilation - Correct Answer movement of air into and out of the lungs/exchange of air between the atmosphere and the air sacs (Alveoli)
External gas exchange - Correct Answer occurs in the lungs as oxygen diffuses from the air sacs into the blood and carbon dioxide diffuses out of the blood to be eliminated
Gas transport in the blood - Correct Answer The circulating blood carries gases between the lungs and the tissues, supplying oxygen to the cells and bringing back carbon dioxide.
Internal gas exchange - Correct Answer occurs in the tissues as oxygen diffuses from the blood to the cells, whereas carbon dioxide travels from the cells into the blood
compliance - Correct Answer The ease with which one can expand the lungs and thorax
Diffusion - Correct Answer Movement of molecules from an area of higher concentration
to an area of lower concentration/concentration gradient
two phases of ventilation - Correct Answer inhalation and exhalation
Surfactant - Correct Answer chemical produced in the lungs to maintain the surface tension of the alveoli and keep them from collapsing
Difference between the left and right bronchi - Correct Answer right bronchi is larger and
extends more vertically. (this is where a foreign object will most likely lodge)
hypoventilation - Correct Answer causes increased CO2/H+ in blood & acidosis
Hyperventilation - Correct Answer causes decreased CO2/H+ in blood and Alkalosis
Part of the brain controls the HR and Resp - Correct Answer Medulla/Brainstem