tunica vasculosa lentis

Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

tu·ni·ca vas·cu·lo·sa len·tis

a nutrient vascular layer enveloping the lens of the eye in the fetus; it consists of the pupillary membrane in the region of the pupil.


pl. tunicae [L.] a covering or coat; a membranous covering of an organ or a distinct layer of the wall of a hollow structure, as a blood vessel. See also tunic.

tunica adventitia
the outer coat of various organs, blood vessels and other structures, usually made up of loose connective tissue.
tunica albuginea
a dense, white, fibrous sheath enclosing a part or organ, such as is present on the testis.
tunica albuginea ovarii
see tunica ovarii (below).
tunica conjunctiva
the conjunctiva.
tunica dartos
tunica externa
an outer coat, especially the fibroelastic coat of a blood vessel.
tunica flava abdominis
an extensive sheet of elastic tissue that helps to support the abdomen. It is conspicuous in large animals as a yellow corset over the ventral abdomen and is a modified part of the deep fascia and aponeurosis of the external abdominal oblique muscle. It contributes to the deep fascia for the mammary gland or the scrotum.
tunica intima
the innermost coat of blood vessels; called also Bichat's tunic.
tunica media
the middle coat of blood vessels.
tunica mucosa
the mucous membrane lining of various tubular structures.
tunica muscularis
the muscular coat or layer surrounding the tela submucosa in most portions of the digestive, respiratory, urinary and genital tracts.
tunica ovarii
capsule of dense collagenous tissue, underlying the covering epithelium, covers each ovary. Called also tunica albuginea ovarii.
tunica propria
the proper coat or layer of a part, as distinguished from an investing membrane.
tunica serosa
the membrane lining the external walls of the body cavities and coating the surfaces of intruding organs; it secretes a watery exudate.
tunica vaginalis
the double-layered sleeve of peritoneum that lines the scrotum and inguinal canal (parietal layer) and invests the testis, epididymis and spermatic cord (visceral layer).
tunica vasculosa
a vascular coat, or a layer well supplied with blood vessels, e.g. of the eye.
tunica vasculosa lentis
vascular envelope of the lens in the developing fetus.
References in periodicals archive ?
The main risk factors for unfavorable anatomic outcomes were APROP, delayed laser therapy (stage 4a) and abnormal anterior segment findings such as tunica vasculosa lentis or increased iris vascular dilation and tortuosity prior to treatment.