Cards Return to Set Details. The smooth muscle cells are arranged in circular layers around the vessel, and the thickness of the coat varies with the size of the vessel. It is derived from the embryonic vaginal process.This process is the outpouching of the parietal peritoneum, which follows the testes during descent and then encloses them.It has parietal and visceral layers. Other articles where Tunica intima is discussed: artery: The innermost layer, or tunica intima, consists of a lining, a fine network of connective tissue, and a layer of elastic fibres bound together in a membrane pierced with many openings. Term. Click here to study/print these flashcards. Medical definition of sella turcica: a depression in the middle line of the upper surface of the sphenoid bone in which the pituitary gland is lodged. Sign up here. (05 Mar 2000) Lexicographical Neighbors of Tunica Conjunctiva Palpebrarum. The submucosa lies under this and consists of fibrous connective tissue, separating the mucosa from the next layer, the muscularis externa. tunica [too´nÄ­-kah] (L.) a tunic or coat; used in anatomic nomenclature to designate a membranous covering of an organ or a distinct layer of the wall of a hollow structure, as a blood vessel. 27. Undergraduate 1. Cavity of tunica vaginalis. Définition tunica media of artery | dictionnaire anglais définition synonymes Reverso. The outermost coat or tunica adventitia is a tough layer consisting mainly of collagen fibres that act as a supportive element. It is a dense blue-white membrane, composed of bundles of white fibrous tissue which interlace in every direction. Search tunica serosa and thousands of other words in English definition and synonym dictionary from Reverso. 04/09/2009 . This layer is much thicker in arteries than in veins. What is the meaning of tunica? Microscopic Anatomy of the Stomach. The tubule walls consist of a multilayered germinal epithelium containing spermatogenic cells and Sertoli cells, nutritive cells … Term. Anatomy. Sign up here. Term. Anglais-Français Anglais Synonymes Anglais Simplifi é. Chercher aussi sur: Web Actualités Encyclopédie Images. The tunica intima (or just intima) is the innermost layer of an artery or vein.It is made up of one layer of endothelial cells and is supported by an internal elastic lamina.The endothelial cells are in direct contact with the blood flow.. The tunica albuginea is the fibrous covering of the testis. In artery the innermost layer or tunica intima consists of a lining a fine network of connective tissue and a layer of elastic fibres bound together in a membrane pierced with many openings. Fiber composition also differs; veins contain fewer elastic fibers and function to control caliber of the arteries, a key step in … Tunica externa (vessels) Section of a medium-sized artery. Arteries, Veins, and Capillaries. La difficulté réside dans la définition du traumatisme, son intensité et son implication retenue dans la survenue de la dissection.Les … All Free. Tunica armature autem illo uiso de sonipede desiliit ac splendidum dextra uibrans uenabulum; antequam se copiam aggrediendi haberet in illo pedes [f.27V] Adventitia - definition … Transverse section through a small artery and vein of the mucous membrane of the epiglottis of a child. Tunica adventitia of artery (histological slide) The tunica adventitia is the thickest layer in the veins, and is entirely composed of connective tissue.However, in large and medium-sized vessels, the adventitia contains nerves and small arterioles (nutrient capillaries called the "vasa vasorum," literally, "vessels of the vessels") … Other articles where Tunica albuginea is discussed: animal reproductive system: Testes: …surrounded by a capsule, the tunica albuginea. exchange … Undergraduate 2. 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