The parts of the body involved in sensing smell, including the nose and many parts of the brain. Smell may affect emotion, behavior, memory, and thought. … [Read more...]
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olfactory
Having to do with the sense of smell. … [Read more...]
Office for Human Research Protections
The office within the U.S. Department of Health and Human Services (DHHS) that protects the rights, welfare, and well-being of people involved in clinical … [Read more...]
odorant
A substance that gives off a smell. … [Read more...]
odor
A smell. … [Read more...]
occult primary tumor
Cancer in which the site of the primary (original) tumor cannot be found. Most metastases from occult primary tumors are found in the head and neck. … [Read more...]
obsessive-compulsive disorder
An anxiety disorder in which a person has intrusive ideas, thoughts, or images that occur repeatedly, and in which he or she feels driven to perform certain … [Read more...]
pulmonary sulcus tumor
A type of lung cancer that begins in the upper part of a lung and spreads to nearby tissues such as the ribs and vertebrae. Most pulmonary sulcus tumors are … [Read more...]
psoriasis
A chronic disease of the skin marked by red patches covered with white scales. … [Read more...]
psoralen and ultraviolet A therapy
A type of photodynamic therapy used to treat skin conditions such as psoriasis, vitiligo, and skin nodules of cutaneous T-cell lymphoma. The patient receives … [Read more...]