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| Tunica vasculosa lentis | |
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| Details | |
| Identifiers | |
| Latin | tunica vasculosa lentis |
| Anatomical terminology | |
The tunica vasculosa lentis is an extensive capillary network, spreading over the posterior and lateral surfaces of the lens of the eye. It disappears shortly after birth.
Tunica is a town in and the county seat of Tunica County, Mississippi, United States, near the Mississippi River. Until the early 1990s when casino gambling was introduced in the area, Tunica had been one of the most impoverished places in the United States. Despite this economic improvement, Tunica's population continues to decline from its peak in 1970.
Tunica may refer to:
The lens capsule is a component of the globe of the eye. It is a clear elastic basement membrane composed of collagen IV laminin etc. a quality that keeps it under constant tension. As a result, the lens naturally tends towards a rounder or more globular configuration, a shape it must assume for the eye to focus at a near distance. The lens capsule is the thickest basement membrane in the body.
The Tunica or Luhchi Yoroni language is a language isolate that was spoken in the Central and Lower Mississippi Valley in the United States by Native American Tunica peoples. There are no native speakers of the Tunica language, but as of 2017, there are 32 second language speakers.
Ectopia lentis is a displacement or malposition of the eye's crystalline lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed lens luxation or luxated lens.
Leukocoria is an abnormal white reflection from the retina of the eye. Leukocoria resembles eyeshine, but leukocoria can also occur in animals that lack eyeshine because their retina lacks a tapetum lucidum.
The tunica albugine is a dense, blue-white layer of fibrous tissue surrounding the testis. It is the middle of three enveloppes forming the capsule of the testis; it is deep to the visceral layer of tunica vaginalis, and superficial to the tunica vasculosa testis.
Persistent tunica vasculosa lentis is a congenital ocular anomaly. It is a form of persistent fetal vasculature (PFV).
The tunica vasculosa testis is the inner-most of the three layers that form the capsule of the testis. It consists of a vascular plexus and loose connective tissue. It extends into the testis itself to line the surfaces of individual septa of testis.
Tunica vasculosa can refer to:
The tunica albuginea is a layer of condensed fibrous tissue on the surface of the ovary.
The medulla of ovary is a highly vascular stroma in the center of the ovary. It forms from embryonic mesenchyme and contains blood vessels, lymphatic vessels, and nerves.
Lenti is a town in Zala County, Hungary, located near the border with Austria, Slovenia and Croatia.
In most terrestrial mammals, the scrotum or scrotal sac is a part of the external male genitalia located at the base of the penis that consists of a suspended dual-chambered sac of skin and smooth muscle. The scrotum contains the external spermatic fascia, testicles, epididymides, and vasa deferentia. It is a distention of the perineum and carries some abdominal tissues into its cavity including the testicular artery, testicular vein, and pampiniform plexus. The perineal raphe is a small, vertical, slightly raised ridge of scrotal skin under which is found the scrotal septum. It appears as a thin longitudinal line that runs front to back over the entire scrotum. In humans, the scrotum becomes covered with pubic hair at puberty. The scrotum will usually tighten during penile erection and when exposed to cold temperatures. One testis is typically lower than the other to avoid compression in the event of an impact.
Persistent fetal vasculature(PFV), also known as persistent fetal vasculature syndrome (PFVS), and until 1997 known primarily as persistent hyperplastic primary vitreous (PHPV), is a rare congenital anomaly which occurs when blood vessels within the developing eye, known as the embryonic hyaloid vasculature network, fail to regress as they normally would in-utero after the eye is fully developed. Defects which arise from this lack of vascular regression are diverse; as a result, the presentation, symptoms, and prognosis of affected patients vary widely, ranging from clinical insignificance to irreversible blindness. The underlying structural causes of PFV are considered to be relatively common, and the vast majority of cases do not warrant additional intervention. When symptoms do manifest, however, they are often significant, causing detrimental and irreversible visual impairment. Persistent fetal vasculature heightens the lifelong risk of glaucoma, cataracts, intraocular hemorrhages, and Retinal detachments, accounting for the visual loss of nearly 5% of the blind community in the developed world. In diagnosed cases of PFV, approximately 90% of patients with a unilateral disease have associated poor vision in the affected eye.
The Tunica people are a group of linguistically and culturally related Native American tribes in the Mississippi River Valley, which include the Tunica ; the Yazoo; the Koroa ; and possibly the Tioux. They first encountered Europeans in 1541 – members of the Hernando de Soto expedition.
In biology, a tunica is a layer, coat, sheath, or similar covering. The word came to English from the Neo-Latin of science and medicine. Its literal sense is about the same as that of the word tunic, with which it is cognate. In biology, one of its senses used to be the taxonomic name of a genus of plants, but the nomenclature has been revised and those plants are now included in the genus Petrorhagia.
Arthur Brückner was a German-Swiss ophthalmologist, known for his research in sensory physiology and his studies involving the cytology of the eye.
Lenti is a district in Zala County. Lenti is also the name of the town where the district seat is found. The district is located in the Western Transdanubia Statistical Region.
Francesco "Cisco" Lenti is a Canadian outlaw biker and gangster, best known as the co-founder of the Loners Motorcycle Club.
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