Respitory System Flashcards
1
Q
What are the small hairs called?
A
Cilia
2
Q
What is the purpose of the nasal cavity?
A
To filter, warm and moisten the air.
3
Q
Which ways does gas go in gaseous exchange?
A
High to low
4
Q
What fluid is used to allow for expansion of the thoracic cavity?
A
Pleural fluid
5
Q
What happens during inspiration?
A
Pressure is lowered in the lungs by intercostal muscles and diaphragm contracting, pulling air into the lungs.
6
Q
What Carries oxygen around the body?
A
Haemoglobin and plasma
7
Q
Why are alveoli small and in abundance?
A
The small size but large abundance increases the amount of total surface area. Allow for more gas exchange into the blood stream.
