Glossary O

Glossary O

Old-old refer to those who have suffered major physical or mental decrements among the very old,.

Older adulthood refers to an era in the human life course that follows "middle adulthood" or "middle age". It is sometimes called "late adulthood" and includes those who are 65 years of age or older; encompasses distinctions within this era between the "young old", the "old old", and the "very old"

Olfaction refers to the sense of smell, which plays an important role in human psychology and behavior. Our sense of smell is closely linked to our emotions, memories, and perceptions, and can have a powerful impact on our mood and behavior.

Olfactometer is defined as the device that presents olfactory stimuli with great precision.

Olfactory bulb refers to the structure that receives signals directly from the olfactory receptors. The olfactory bulb contains glomeruli, which receive these signals from the receptors.

Olfactory cells are neurons responsible for the sense of smell, located on the olfactory epithelium in the rear of the nasal air passages

Olfactory demarcation refers to an animal signalling its presence through scent which can be in its feces, urine and products of special scent glands. Generally male scent glands are more elaborate than those of the females.

Olfactory disorder refers to a loss in the ability to smell or a change in the way odors are perceived. Hyposmia means reduction of the sense of smell, while Anosmia is the total inability to detect odors. Olfactory hallucination is a type of hallucination that involves the sense of smell

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