Glossary with audio assistance
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Oedemaexcessive accumulation of fluid in the tissues or body cavities; often results in swelling of the area | |
Oestrogenfemale sex hormone secreted by the ovary | |
Olfactionscientific name for the sensation of smell | |
Oliguriareduced urine output | |
Omnivoreanimal that eats both plants and meat | |
Organa group of tissues that perform a particular function | |
Organic substancea substance that is derived from a living organism or contains hydrocarbon groups, for example fats and carbohydrates | |
Orthopnoeabreathing in an upright position, usually standing; the elbows are abducted to minimise compression of the chest wall | |
Osmoregulationthe maintenance of optimal osmotic pressure by controlling water and salt content of body fluids | |
Osmosisthe movement of water from an area of low concentration to one of high concentration through a semipermeable membrane, in order to equalise the concentrations on each side of the membrane | |
Osmotic pressurethe pressure needed to prevent osmosis from occurring; depends on the number of particles in a solution | |
Osteoblastbone-forming cell | |
Osteoclastcell that breaks down bone | |
Osteocytebone cell | |
Ototoxicitytoxic to the ear, specifically the vestibulcochlear system (inner ear) | |
Outbreedingbreeding from two animals that are not related | |
Oxidation1. reaction in which oxygen molecules are added to a chemical substance. 2. loss of electrons. | |