tubular structure
21Lumen — A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a hollow organ such as the intestine. Lumen is a luminous term because it is Latin for light, including the light that comes through a window.… …
22Gland — A gland is an organ in an animal s body that synthesizes a substance for release such as hormones or breast milk, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland). Types Glands… …
23Schlumbergera — This article is about the genus Schlumbergera, including the house plants commonly called Christmas Cactus or Thanksgiving Cactus. For the Easter Cactus or Whitsun Cactus, see Hatiora. Schlumbergera Cultivar belonging to the Schlumbergera… …
24Dysplasia — Abnormal in form. From the Greek dys (bad, disordered, abnormal) and plassein (to form). For example, retinal dysplasia is abnormal formation of the retina during embryonic development. * * * Abnormal tissue development. SEE ALSO: heteroplasia.… …
25Peristalsis — The rippling motion of muscles in the digestive tract. In the stomach, this motion mixes food with gastric juices, turning it into a thin liquid. * * * The movement of the intestine or other tubular structure, characterized by waves of alternate… …
26muscularis — The muscular coat of a hollow organ or tubular structure. [Mod. L. muscular] m. mucosae the thin layer of smooth muscle found in most parts of the digestive tube located outside the lamina propria mucosae and adjacent to the …
27spatulate — 1. Shaped like a spatula. 2. To manipulate or mix with a spatula. 3. To incise the cut end of a tubular structure longitudinally and splay it open, to allow creation of an elliptical anastomosis of greater circumference than would be possible… …
28caudal siphon — (Class Ostracoda): Posteroventral gape in valve margin; may be extended as tubular structure [Stachowitsch, 1992]. (Class Ostracoda): Posteroventral opening in valve border; sometimes produced as tubular structure (Ostracoda) [McLaughlin, 1980] …
29Seminiferous tubule — in cross section (large tubular structure center of image) with sperm (black, tiny, ovoid bodies furthest from the outer edge of the tubular structure). H E stain …
30Cell membrane — Illustration of a Eukaryotic cell membrane The cell membrane or plasma membrane is a biological mem …
