Search results
Results from the WOW.Com Content Network
The positive charges of the ions that enter the cell down its electrochemical gradient change the cell's membrane potential, cause depolarization, and lead to the release of the neurotransmitter glutamate. Glutamate can depolarize some neurons and hyperpolarize others, allowing photoreceptors to interact in an antagonistic manner.
Depolarization is essential to the function of many cells, communication between cells, and the overall physiology of an organism. Action potential in a neuron, showing depolarization, in which the cell's internal charge becomes less negative (more positive), and repolarization, where the internal charge returns to a more negative value.
[18] [19] This has allowed OCTA to obtain detailed images of retinal vasculature in the human retina [20] and become widely used clinically to diagnose a variety of eye diseases, such as age related macular degeneration (AMD), [21] diabetic retinopathy (DR), [22] [23] artery and vein occlusions, and glaucoma. [24] [18]
Visual phototransduction is the sensory transduction process of the visual system by which light is detected by photoreceptor cells (rods and cones) in the vertebrate retina.A photon is absorbed by a retinal chromophore (each bound to an opsin), which initiates a signal cascade through several intermediate cells, then through the retinal ganglion cells (RGCs) comprising the optic nerve.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Baton Rouge General Medical Center – Bluebonnet Campus is a 201-bed, private hospital located at 8585 Picardy Avenue in Baton Rouge, Louisiana. The hospital offers various medical services and surgical procedures in addition to an Emergency Department.
In 1911, Mother de Bethanie Crowley and five Franciscan Missionaries of Our Lady traveled to America, stating their desire to serve the sick and needy. [1] Eight years after establishing a hospital in Monroe, Louisiana, Mother de Bethanie was invited to Baton Rouge by Monsignor Francis Leon Gassler of St. Joseph's Cathedral and a group of leading local physicians, to tour the downtown area in ...
Depolarization of a horizontal cell causes it to hyperpolarize nearby photoreceptors. Conversely, in the light, a photoreceptor releases less glutamate, which hyperpolarizes the horizontal cell, leading to depolarization of nearby photoreceptors. Thus, horizontal cells provide negative feedback to photoreceptors.