|
 |
||
 |
| This glossary contains: 19186 medical terms |
 |
Lateral geniculate nucleus
|
|
Lateral geniculate nucleus Structure located in the thalamus which is a major recipient of axons from the retina. About 10% of its input is from the retina. It is composed of 6 layers. While input to the LGN from the two eyes is segregated, significant binocular influence can be exerted on the LGN by the cortex.
RELATED TERMS--------------------------------------
Recipient
A patient who receives an organ, tissue or blood from another person.
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.
Binocular
Using both eyes at the same time. Binocular vision is the most important element of depth perception.
Cortex
The outer layer of the cerebrum, densely packed with nerve cells.
SIMILAR TERMS--------------------------------------
Latency period
The period between exposure to a disease-causing agent and the onset or appearance of disease symptoms. The latency period for asbestos-related diseases ranges from 15 years for asbestosis to 30 years or more for lung cancer and mesothelioma.
Latent Autoimmune Diabetes in Adults (LADA)
Autoimmune diabetes (Type 1A diabetes) occurring in individuals who are older than the usual age of onset of type 1 diabetes (that is, over 30 years of age at diagnosis). Sometimes, patients with LADA are mistakenly thought to have Type 2 diabetes, based on their age at the time of diagnosis. However, positive antibody tests would help make the diagnosis of LADA.
Latent content
The hidden (i.e., unconscious) meaning of thoughts or actions, especially in dreams or fantasies. In dreams, it is expressed in distorted, disguised, condensed, and symbolic form.
Latent Diabetes
Former term for impaired glucose tolerance.
Lateral
Toward the side, sideways.
PREVIOUS AND NEXT TERMS--------------------------------------
Liver problems
The organ responsible for producing key proteins and other chemicals which regulate the chemistry of the blood. Potential liver problems range from hepatitis to jaundice.
Lochia
Vaginal discharge made up of mucus, blood, and tissue that continues after delivery for up to six weeks. Usually bright red and as heavy or heavier than a period in the first few days after birth, then gradually tapering off.
Low birth weight
When a full-term infant weighs less than 5.5 pounds at birth. Nearly seven of every 100 newborns are low birthweight babies; most of these cases are linked to cigarette, alcohol, or drug use during pregnancy and can be prevented.
Lumbar puncture
A procedure in which spinal fluid is drawn from the spinal column to check for diseases, including meningitis.
L cones
Long wavelength sensitive cones (red). Are most sensitive to a wavelength of approximately 558nm. (See also M Cones and S Cones).
Lateral geniculate nucleus
Left visual hemifield
The left half of the visual field, projects on the nasal hemiretina of the left eye and on the temporal hemiretina of he right eye.
Lightness
The perception of reflectance. Related to the perception of an object's surface.
Linespread
The distribution of how the image of a very thin line is blurred on the retina (due to diffraction). Depends on pupil size.
LGN
See Lateral Geniculate Nucleus.
Lethal acrodermatitis
An inherited autosomal recessive disease in bull terriers relating to zinc metabolism.
RELATED TERMS--------------------------------------
Recipient
A patient who receives an organ, tissue or blood from another person.
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.
Binocular
Using both eyes at the same time. Binocular vision is the most important element of depth perception.
Cortex
The outer layer of the cerebrum, densely packed with nerve cells.
SIMILAR TERMS--------------------------------------
Latency period
The period between exposure to a disease-causing agent and the onset or appearance of disease symptoms. The latency period for asbestos-related diseases ranges from 15 years for asbestosis to 30 years or more for lung cancer and mesothelioma.
Latent Autoimmune Diabetes in Adults (LADA)
Autoimmune diabetes (Type 1A diabetes) occurring in individuals who are older than the usual age of onset of type 1 diabetes (that is, over 30 years of age at diagnosis). Sometimes, patients with LADA are mistakenly thought to have Type 2 diabetes, based on their age at the time of diagnosis. However, positive antibody tests would help make the diagnosis of LADA.
Latent content
The hidden (i.e., unconscious) meaning of thoughts or actions, especially in dreams or fantasies. In dreams, it is expressed in distorted, disguised, condensed, and symbolic form.
Latent Diabetes
Former term for impaired glucose tolerance.
Lateral
Toward the side, sideways.
PREVIOUS AND NEXT TERMS--------------------------------------
Liver problems
The organ responsible for producing key proteins and other chemicals which regulate the chemistry of the blood. Potential liver problems range from hepatitis to jaundice.
Lochia
Vaginal discharge made up of mucus, blood, and tissue that continues after delivery for up to six weeks. Usually bright red and as heavy or heavier than a period in the first few days after birth, then gradually tapering off.
Low birth weight
When a full-term infant weighs less than 5.5 pounds at birth. Nearly seven of every 100 newborns are low birthweight babies; most of these cases are linked to cigarette, alcohol, or drug use during pregnancy and can be prevented.
Lumbar puncture
A procedure in which spinal fluid is drawn from the spinal column to check for diseases, including meningitis.
L cones
Long wavelength sensitive cones (red). Are most sensitive to a wavelength of approximately 558nm. (See also M Cones and S Cones).
Lateral geniculate nucleus
Left visual hemifield
The left half of the visual field, projects on the nasal hemiretina of the left eye and on the temporal hemiretina of he right eye.
Lightness
The perception of reflectance. Related to the perception of an object's surface.
Linespread
The distribution of how the image of a very thin line is blurred on the retina (due to diffraction). Depends on pupil size.
LGN
See Lateral Geniculate Nucleus.
Lethal acrodermatitis
An inherited autosomal recessive disease in bull terriers relating to zinc metabolism.
We thank you for using the Medical Glossary to search for Lateral geniculate nucleus. If you have a better definition for Lateral geniculate nucleus than the one presented here, please let us know by making use of the suggest a term option. This definition of Lateral geniculate nucleus may be disputed by other professionals. Our attempt is to provide easy definitions on Lateral geniculate nucleus and any other medical topic for the public at large.
This dictionary contains 19186 terms.
|
|