Related Words

Respiratory Quotient: The ratio of moles of carbon dioxide produced to oxygen consumed in respiration

Respiratory Surface: A thin, moist, epithelial surface that oxygen can cross to move into the body and carbon dioxide can cross to move out of the body.

Respiratory System: One of eleven major body organ systems in animals; moves oxygen from the external environment into the internal environment and removes carbon dioxide from the body.

Respiratory Pigment: A molecule, polymer, or other complex adapted to bind and transport oxygen efficiently, usually in a circulatory system (e.g., hemoglobin)

Respiratory Arrest: The absense of breathing or presence of agonal respirations. In most cases, victims of respiratory arrest are also suffering from cardiac arrest, and should receive CPR.

Intelligence Quotient (IQ): A test that calculates a person's purported mental capacity. IQ tests have become increasingly controversial because critics claim they measure only a narrow band of intellectual strengths. . . . View Full Definition

Photosynthetic Quotient: In photosynthesis, the moles of oxygen produced, divided by the moles of carbon dioxide assimilated

Reaction Quotient: The product of the concentrations of the products, divided by the product of the concentrations of the reactants, for a chemical reaction which is not necessarily at equilibrium. For example . . . View Full Definition

Cardiorespiratory System: The lungs, and heart and blood vessels in the body.