Human Breathing Flashcards
(8 cards)
1
Q
Inhalation
A
Brain sends signal/ intercoastal muscles contract and rib cage moves up and out/diaphragm contracts and moves down/ volume of thoracic cavity increases/ air pressure decreases/ air enters.
2
Q
Disorder/Cause/Treatment
A
Asthma/ Pollen/ Inhaler
3
Q
Structure involved in gaseous exchange
A
Alveoli
4
Q
How does alveoli increase efficiency
A
Very numerous/ large surface area/ thin walls/ moist surface.
5
Q
Gas that controls rate of breathing
A
CO2
6
Q
Part of brain that controls breathing
A
Medulla Oblongata
7
Q
Larynx
A
To make sound
8
Q
Epiglottis
A
To close off trachea.
