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| This glossary contains: 19186 medical terms |
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Nasal hemiretina
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Nasal hemiretina That portion of the retina that lies medial to the fovea.
RELATED TERMS--------------------------------------
Retina
A membrane lining the inside of the back of the eye that contains light-sensitive nerve cells that convert focused light into nerve impulses, making vision possible.
Medial
Anatomical term meaning on the inside (as opposed to lateral). Not to be confused with median (nerve) that is compressed in carpal tunnel syndrome.
Fovea
A central portion of the retina and macula that contains only cones. The fovea is the only part of the eye that is capable of 20/20 or better vision.
SIMILAR TERMS--------------------------------------
Nasacort
Nasacort is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): triamcinolone acetonide.
Nasacort aq
Nasacort aq is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): triamcinolone acetonide.
Nasacort hfa
Nasacort hfa is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): triamcinolone acetonide.
Nasalcrom
Nasalcrom is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): cromolyn sodium.
Nasalide
Nasalide is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): flunisolide.
Nasarel
Nasarel is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): flunisolide.
PREVIOUS AND NEXT TERMS--------------------------------------
Newborn intrapartal care
Medical care for infants through labor and delivery.
Newborn jaundice
The yellowing of a newborn's skin, usually beginning on the second or thirdday after birth and lasting a week to ten days. Caused by the immaturity ofthe newborn's systems, jaundice is common, with more than half of newbornshaving the disorder.
Niacin
One of the B vitamins, niacin is an essential vitamin that is especiallyimportant for digestion and appetite, as well as tissue and nerve cells.
Non-stress test
A test for abnormalities of the fetal heartbeat in which a monitor is used to listen to the fetus's heart while the mother is at rest. (In a stress test, the fetal heartbeat is monitored in response to uterine contractions.)
Norplant
Time-released birth control, administered through 6 tiny tubes that are implanted in a woman's upper arm. It remains effective for up 5 years.
Nasal hemiretina
Neuron doctrine
The idea that nerve cells are independent biological units.
Nonclassical receptive field
Classical receptive fields are plotted by spots of light or moving stimuli. If a cell responds consistently to that stimulus then the location of that stimulus is said to be within the cells classical receptive field. Activity outside that area can influence a cell's response to the original stimulus. Examples : Motion, Color.
Nucleus of the optic tract (NOT)
Receives input from directionally sensitive cells in the retina. Lesions produce deficits in tracking of moving stimuli.
Null sets
Sets of stimuli which all lead to the same activation of the individual photoreceptor and are thus indiscriminable for that photoreceptor
Nyquist limit
The highest resolvable frequency that can be unambiguously registered by an array of neural elements. A system that encodes spatial patterns at a seires of uniformly spaced sample points can exactly represent sine or cosine gratings of all spacial frequencies up to the Nyquist frequency.
RELATED TERMS--------------------------------------
Retina
A membrane lining the inside of the back of the eye that contains light-sensitive nerve cells that convert focused light into nerve impulses, making vision possible.
Medial
Anatomical term meaning on the inside (as opposed to lateral). Not to be confused with median (nerve) that is compressed in carpal tunnel syndrome.
Fovea
A central portion of the retina and macula that contains only cones. The fovea is the only part of the eye that is capable of 20/20 or better vision.
SIMILAR TERMS--------------------------------------
Nasacort
Nasacort is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): triamcinolone acetonide.
Nasacort aq
Nasacort aq is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): triamcinolone acetonide.
Nasacort hfa
Nasacort hfa is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): triamcinolone acetonide.
Nasalcrom
Nasalcrom is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): cromolyn sodium.
Nasalide
Nasalide is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): flunisolide.
Nasarel
Nasarel is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): flunisolide.
PREVIOUS AND NEXT TERMS--------------------------------------
Newborn intrapartal care
Medical care for infants through labor and delivery.
Newborn jaundice
The yellowing of a newborn's skin, usually beginning on the second or thirdday after birth and lasting a week to ten days. Caused by the immaturity ofthe newborn's systems, jaundice is common, with more than half of newbornshaving the disorder.
Niacin
One of the B vitamins, niacin is an essential vitamin that is especiallyimportant for digestion and appetite, as well as tissue and nerve cells.
Non-stress test
A test for abnormalities of the fetal heartbeat in which a monitor is used to listen to the fetus's heart while the mother is at rest. (In a stress test, the fetal heartbeat is monitored in response to uterine contractions.)
Norplant
Time-released birth control, administered through 6 tiny tubes that are implanted in a woman's upper arm. It remains effective for up 5 years.
Nasal hemiretina
Neuron doctrine
The idea that nerve cells are independent biological units.
Nonclassical receptive field
Classical receptive fields are plotted by spots of light or moving stimuli. If a cell responds consistently to that stimulus then the location of that stimulus is said to be within the cells classical receptive field. Activity outside that area can influence a cell's response to the original stimulus. Examples : Motion, Color.
Nucleus of the optic tract (NOT)
Receives input from directionally sensitive cells in the retina. Lesions produce deficits in tracking of moving stimuli.
Null sets
Sets of stimuli which all lead to the same activation of the individual photoreceptor and are thus indiscriminable for that photoreceptor
Nyquist limit
The highest resolvable frequency that can be unambiguously registered by an array of neural elements. A system that encodes spatial patterns at a seires of uniformly spaced sample points can exactly represent sine or cosine gratings of all spacial frequencies up to the Nyquist frequency.
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This dictionary contains 19186 terms.
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