Gas exchange humans: What does what? (Contract and relax) Flashcards
What happens to external intercostal muscles during inhalation?
External intercostal muscles contract.
What happens to internal intercostal muscles during exhalation?
Internal intercostal muscles contract.
What movement does the ribcage make during inhalation?
The ribcage moves upwards and outwards.
What movement does the ribcage make during exhalation?
The ribcage moves downwards and inwards.
What happens to the diaphragm during inhalation?
The diaphragm contracts and flattens
What happens to the diaphragm during exhalation?
The diaphragm relaxes and curves inwards.
What happens to the volume of the chest during inhalation?
The volume of the chest increases.
What happens to the volume of the chest during exhalation?
The volume of the chest decreases.
What happens to pressure in the chest during inhalation?
The pressure in the chest decreases.
What happens to pressure in the chest during exhalation?
The pressure in the chest increases.
What happens to air during inhalation?
Air enters the lungs.
What happens to air during exhalation?
Air moves out of the lungs.
