20 terms

Respiratory System

by E. Hung @ 2014
Carbon dioxide
is a waste product produced during respiration
Respiratory system
includes the nose, pharynx, larynx, trachea, bronchi, and lungs. It provides for gas exchange, intake of O2 and the removal of CO2
Pinkish spongy organs responsible gas exchange.
back of the mouth - throat
also called voice box for making noise and sound; connecting the pharynx and trachea.
cartilage that seals off the larynx from food and liquids
tube supported by C-shaped rings of cartilage where inspired air passes from the larynx.
Either of the two subdivisions of the trachea conveying air into the lungs.
tiny air passages smaller than 1 millimeter in diameter from bronchus, ending up with air sacs.
air sacs in the lungs where gases exchanges take place.
intercostal muscle
the muscles found in between the ribs, responsible for inhalation and exhalation.
Large, dome-shaped muscle at the bottom of the chest cavity that helps with breathing.
pulmonary veins
Veins carry oxygenated blood from the lungs to the heart.
pulmonary arteries
Arteries carry deoxygenated blood from the heart to the lung.
deoxygenated blood
blood that is oxygen poor and has a lot of CO2 - dull red in colour.
oxygenated blood
blood that contains a lot of oxygen and is red in colour.
the taking in oxygen and removal of carbon dioxide by the respiratory system.
the oxidation of food to release energy inside the cell.
the movement of gas from a high concentration to a lower concentration, eg. oxygen from air sac to the surrounding blood capillaries.
chest cavity
Second largest hollow space of the body, enclosed by the ribs, vertebral column , and breastbone and separated from the abdominal cavity.