| D008168 |
Lung |
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. |
Lungs |
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| D009538 |
Nicotine |
Nicotine is highly toxic alkaloid. It is the prototypical agonist at nicotinic cholinergic receptors where it dramatically stimulates neurons and ultimately blocks synaptic transmission. Nicotine is also important medically because of its presence in tobacco smoke. |
Nicotine Bitartrate,Nicotine Tartrate |
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| D001921 |
Brain |
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. |
Encephalon |
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| D004361 |
Drug Tolerance |
Progressive diminution of the susceptibility of a human or animal to the effects of a drug, resulting from its continued administration. It should be differentiated from DRUG RESISTANCE wherein an organism, disease, or tissue fails to respond to the intended effectiveness of a chemical or drug. It should also be differentiated from MAXIMUM TOLERATED DOSE and NO-OBSERVED-ADVERSE-EFFECT LEVEL. |
Drug Tolerances,Tolerance, Drug,Tolerances, Drug |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D001682 |
Biological Availability |
The extent to which the active ingredient of a drug dosage form becomes available at the site of drug action or in a biological medium believed to reflect accessibility to a site of action. |
Availability Equivalency,Bioavailability,Physiologic Availability,Availability, Biologic,Availability, Biological,Availability, Physiologic,Biologic Availability,Availabilities, Biologic,Availabilities, Biological,Availabilities, Physiologic,Availability Equivalencies,Bioavailabilities,Biologic Availabilities,Biological Availabilities,Equivalencies, Availability,Equivalency, Availability,Physiologic Availabilities |
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| D012907 |
Smoking |
Willful or deliberate act of inhaling and exhaling SMOKE from burning substances or agents held by hand. |
Smoking Behaviors,Smoking Habit,Behavior, Smoking,Behaviors, Smoking,Habit, Smoking,Habits, Smoking,Smoking Behavior,Smoking Habits |
|
| D019966 |
Substance-Related Disorders |
Disorders related to substance use or abuse. |
Chemical Dependence,Drug Abuse,Drug Addiction,Drug Dependence,Drug Habituation,Drug Use Disorder,Drug Use Disorders,Organic Mental Disorders, Substance-Induced,Substance Abuse,Substance Dependence,Substance Related Disorder,Substance Use,Substance Use Disorder,Substance Use Disorders,Prescription Drug Abuse,Substance Addiction,Abuse, Drug,Abuse, Prescription Drug,Abuse, Substance,Addiction, Drug,Addiction, Substance,Chemical Dependences,Dependence, Chemical,Dependence, Drug,Dependence, Substance,Dependences, Chemical,Disorder, Drug Use,Disorder, Substance Related,Disorder, Substance Use,Disorders, Substance Related,Drug Abuse, Prescription,Habituation, Drug,Organic Mental Disorders, Substance Induced,Related Disorder, Substance,Related Disorders, Substance,Substance Abuses,Substance Uses,Use, Substance |
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