To discuss:
The secretion, flow, and reabsorption of aqueous humor.
Introduction:
The optical components present in the eye include the cornea, lens, aqueous humor, and vitreous body. These components are transparent elements involved in admitting the light rays, refracting the rays, and focusing the images in the retina of the eye. The retina, the neural component, is one of the principle components of the eyeball.
The eyeball consists of three cell layers (tunics) namely tunica fibrosa, tunica vasculosa, and tunica interna. The tunica vasculosa is the middle layer of the eyeball. This layer comprises three regions namely iris, ciliary body, and the choroid. The choroid is the pigmented, highly vascular layer present behind the retina. The oxygen supply to the retina is obtained from the choroid. Thus, the retina if separated from the choroid for a long time results in blindness. The ciliary body is an extension (thickened) from the choroid, which forms a ring (muscular) encircling the lens present in the eye.
Want to see the full answer?
Check out a sample textbook solutionChapter 16 Solutions
CONNECT ACCESS CARD FOR ANATOMY AND PHYSIOLOGY
- Which cranial nerve carries olfactory signals to the brain, and the route and point of termination of its nerve fibers.arrow_forwardHow Cerebrospinal Fluid samples may be differentiated serum/plasma and other body fluids.arrow_forwardThe role of the limbic system in the formation of the systemic activity of the organismarrow_forward
- Causes and effects of hemoglobin deficiencies and the pathology of sickle-cell diseaseand thalassemiaarrow_forwardStructural and functional organization of the autonomic nervous system, its role in the regulation of visceral functions.arrow_forwardWhat clinical disorder results from a deficiency of the neurotransmitter substance associated with melanin pigment in the substantia nigraarrow_forward
- difference and similarities of Venipuncture and Arterial puncture.arrow_forwardThe posterior root is made up of sensory nerves AND is ascending.arrow_forwardDysfunction of which the following structures may be the cause of lower extremity symptoms? Brachial plexus Lumbar plexus Cervical plexus Sacral plexusarrow_forward
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:CengageUnderstanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage