Medical Glossary
Searchable medical terms with definitions and mnemonics
A substance that binds to and activates a receptor, producing a biological response.
💡 Mnemonic: Agonist = Acts to activate
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A substance that binds to a receptor but does not activate it, blocking the action of agonists.
💡 Mnemonic: Antagonist = Against the action
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A disease in which plaque builds up inside arteries, narrowing them and restricting blood flow.
💡 Mnemonic: Athero = gruel/porridge (plaque consistency)
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The proportion of a drug that enters systemic circulation when introduced into the body.
💡 Mnemonic: Bio-available = How much gets to the body
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A slower than normal heart rate, typically less than 60 beats per minute in adults.
💡 Mnemonic: Brady = slow, cardia = heart
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The volume of plasma from which a substance is completely removed per unit time.
💡 Mnemonic: Clear = remove completely
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Swelling caused by excess fluid trapped in body tissues.
💡 Mnemonic: Edema = Extra fluid
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The time required for the concentration of a drug to decrease by half.
💡 Mnemonic: Half the drug, half the time
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