OLFACTORY MUCOSA

the superior part of the nasal cavity consisting of mucus-secreting cells and subsuming the olfactory nerve, the olfactory epithelium, and supporting cells.

OLIVOCOCHLEAR BUNDLE

a tract of efferent or centrifugal fibers spanning from the superior olivary complex by way of the descending neural pathways on to the cochlear...

ONEIRISM

a dream-like condition in a state of being awake.

ON-OFF CELLS

neurons within the visual system, specifically the retina, which depolarize whenever the retina is aroused with either light onset or light offset.

OPEN ADOPTION

a type of adoption which permits varying amounts of pre- and post placement communication between a youth's adoptive family and birth family and makes...

OPEN-CLASS WORDS

with regard to a language, a class of terms which readily accepts new members, like those arising by way of borrowing, word formation, or...

OPERANT CONDITIONING CHAMBER

a tool utilized to examine operant behavior. Typically, it supplies a fairly minute and austere climate which inhibits extraneous stimulants. Included in the climate...

OPHTHALMIA

serious swelling of the eye which might impact either the conjunctiva or deeper structures. Mucous is a type of conjunctivitis with a purulent excretion-...

OPIOID AGONIST

any drug with improving impacts at opioid receptors in the CNS. Commonly referred to as narcotic agonist.

OPPONENTS THEORY OF COLOR VISION

any one of a category of theories depicting color vision on the premise of the behavior of mechanisms, that might correlate to cells, which...

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