A & P Respiratory Test

external respiration

transport of O2 and CO2

internal respiration

filtration and secretion

pulmonary ventilation

external respiration

internal respiration

breathing

diffusion

tissue cells

mouth & nose

lungs

heart

O2 diffuses out from the lungs into the blood; CO2 diffuses into the lungs from the blood

O2 diffuses into the lungs from the blood; CO2 diffuses out of the lungs into the blood

O2 diffuses out from the tissues into the blood; CO2 diffuses into the tissues from the blood

O2 diffuses into the tissues from the blood; CO2 diffuses into the tissues from the blood

O2 diffuses out from the lungs into the blood; CO2 diffuses into the lungs from the blood

O2 diffuses into the lungs from the blood; CO2 diffuses out of the lungs into the blood

O2 diffuses out from the tissues into the blood; CO2 diffuses into the tissues from the blood

O2 diffuses into the tissues from the blood; CO2 diffuses into the blood from the tissues

the throat

the windpipe

splits into the esophags and larynx

the voice box

supported by rings of cartilage

passes air to the trachea

two branches at the bottom of the trachea

Small branches within the lungs

covered in capillaries

each lead to a lung

thin-walled air sacs

dome-shaped muscle wall beneath the lungs

relaxes to cause expiration

closes during eating

contracts to cause inspiration

door at the top of the larynx

opens during breathing

full of hair and mucus to trap microbes and dust

hollow area behind the nose