Medullary rays

Medullary rays
Medullary Med"ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m['e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster]

2. (Bot.) Filled with spongy pith; pithy. [1913 Webster]

{Medullary groove} (Anat.), a groove, in the epiblast of the vertebrate blastoderm, the edges of which unite, making a tube (the medullary canal) from which the brain and spinal cord are developed.

{Medullary rays} (Bot.), the rays of cellular tissue seen in a transverse section of exogenous wood, which pass from the pith to the bark.

{Medullary sheath} (Anat.), the layer of white semifluid substance (myelin), between the primitive sheath and axis cylinder of a medullated nerve fiber. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • medullary rays — radii medullares …   Medical dictionary

  • Medullary — Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with spongy pith;… …   The Collaborative International Dictionary of English

  • Medullary groove — Medullary Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with… …   The Collaborative International Dictionary of English

  • Medullary sheath — Medullary Med ul*la*ry, a. [L. medullaris, fr. medulla marrow: cf. F. m[ e]dullaire.] 1. (Anat.) (a) Pertaining to, consisting of, or resembling, marrow or medulla. (b) Pertaining to the medula oblongata. [1913 Webster] 2. (Bot.) Filled with… …   The Collaborative International Dictionary of English

  • Medullary ray (botany) — In botany, Medullary rays refer to a characteristic found in woods. In this context the term refers to radial sheets or ribbons extending vertically through the tree across and perpendicular to the growth rings. Also called pith rays or wood rays …   Wikipedia

  • Duct of Bellini — Position of the duct of Bellini in the kidney Latin ductus papillaris Gray s …   Wikipedia

  • Interlobular arteries — Artery: Interlobular arteries Scheme of renal tubule and its vascular supply. Latin arteriae corticales radiatae, arteriae interlobulares renis Gray s …   Wikipedia

  • Kidney — One of a pair of organs located in the right and left side of the abdomen which clear "poisons" from the blood, regulate acid concentration and maintain water balance in the body by excreting urine. The kidneys are part of the urinary… …   Medical dictionary

  • Cleaving axe — For other uses, see Cleaver. A cleaving axe or cleaver is a form of axe used within green woodworking. As the name suggests, it is used for cleaving, the practice of splitting green wood lengthways. Cleaving is used to turn a log into more usable …   Wikipedia

  • Abies pectinata — Silver Sil ver, a. 1. Of or pertaining to silver; made of silver; as, silver leaf; a silver cup. [1913 Webster] 2. Resembling silver. Specifically: (a) Bright; resplendent; white. Silver hair. Shak. [1913 Webster] Others, on silver lakes and… …   The Collaborative International Dictionary of English

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”