The Respiratory System (Junior Cert Science): Flashcards

Energy release from food in cells

Moving air in and out of lungs

Filters air, traps dust with small hairs

Thin walls, large surface area, many capillaries

Intercostal muscles & diaphragm contract

Intercostal muscles & diaphragm relax

Movement from high to low concentration

$21\%$ to $16\%$

$0.04\%$ to $4\%$

Closes over trachea when swallowing to prevent choking