The Breathing System Flashcards
1
Q
Name the nine parts of the thorax
A
Ribcage, heart, intercostal muscles, trachea, bronchus, bronchioles, diaphragm, lungs, alveoli
2
Q
What happens to the thorax, intercostal muscles and diaphragm when you breathe in?
A
Intercostal muscles and diaphragm contact, thorax volume increases
3
Q
What happens to the thorax, intercostal muscles and diaphragm when you breathe out?
A
Intercostal muscles and diaphragm relax, thorax volume decreases
4
Q
What happens to the pressure in the lungs when you breathe in?
A
Pressure decreases and air goes in
5
Q
What happens to the pressure in the lungs when you breathe out?
A
Pressure increases and air is forced out
6
Q
What is the top part of the body called?
A
The thorax
