Definition of Medullary ray
1. Noun. A sheet of vascular tissue separating the vascular bundles.
Medical Definition of Medullary ray
1. The centre of the renal lobule, which has the shape of a small, steep pyramid, consisting of straight tubular parts; these may be either ascending or descending limbs of the nephronic loop or collecting tubules. Synonym: pars radiata lobuli corticalis renis, Ferrein's pyramid, processus ferreini. (05 Mar 2000)
Lexicographical Neighbors of Medullary Ray
Literary usage of Medullary ray
Below you will find example usage of this term as found in modern and/or classical literature:
1. Histology of Medicinal Plants by William Mansfield (1916)
"Students should be careful to distinguish between the medullary ray bundle, the medullary ray, and the medullary ray cell. In some plants the bundles are ..."
2. Manual of Plant Diseases by Paul Sorauer, Gustav Lindau, Ludwig Reh, Frances Dorrance (1922)
"This shows that the medullary ray assists in the radial extension of the axis, ... medullary ray in the first stages of the gnarl formation. ..."
3. Handbook of Practical Botany for the Botanical Laboratory and Private Student by Eduard Strasburger, William Hillhouse (1900)
"... and showing also a medullary ray. s, autumnal trache'ide ; t. ... medullary-my cell; *///, starch- containing medullary-ray cell ill the ..."
4. Comparative Anatomy of the Vegetative Organs of the Phanerogams and Ferns by Anton Bary (1884)
"In the species first mentioned above, the medullary ray consists firstly of somewhat elongated, prismatic, procumbent cells, which, on their surfaces of ..."
5. Proceedings of the Academy of Natural Sciences of Philadelphia by Academy of Natural Sciences of Philadelphia (1903)
"The evidence of intracellular growth is clear.25 In one set of medullary ray cells a hypha is found which forms an enlargement against a transverse ..."
6. A Text-book of physiology by Michael Foster (1891)
"medullary ray, down which it runs to become a descending ... the ascending limb coming up from the medulla runs in a medullary ray and only leaves it to ..."
7. A Text Book of Physiology by Michael Foster (1899)
"The spiral tubule beginning in the column of cortex between the medullary rays makes at once for a medullary ray down which it runs to become a descending ..."
8. The American Antiquarian and Oriental Journal by Stephen Denison Peet (1896)
"II. Tracheids without loosely wound spiral bands. I. Resin ducts in the wood and the larger medullary rays. (A). The inner protoplasmic medullary ray cells ..."