Segmental duct

Segmental duct
Segmental Seg*men"tal, a. 1. Relating to, or being, a segment. [1913 Webster]

2. (Anat. & Zo["o]l.) (a) Of or pertaining to the segments of animals; as, a segmental duct; segmental papill[ae]. (b) Of or pertaining to the segmental organs. [1913 Webster]

{Segmental duct} (Anat.), the primitive duct of the embryonic excretory organs which gives rise to the Wolffian duct and ureter; the pronephric duct.

{Segmental organs}. (a) (Anat.) The embryonic excretory organs of vertebrates, consisting primarily of the segmental tubes and segmental ducts. (b) (Zo["o]l.) The tubular excretory organs, a pair of which often occur in each of several segments in annelids. They serve as renal organs, and often, also, as oviducts and sperm ducts. See Illust. under {Sipunculacea}.

{Segmental tubes} (Anat.), the tubes which primarily open into the segmental duct, some of which become the urinary tubules of the adult. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • segmental duct — noun : the duct of a segmental organ of a vertebrate embryo; especially : the duct of the pronephros that persists after the degeneration of the pronephros, receives the tubules of the mesonephros, becomes the mesonephric duct, and in lower… …   Useful english dictionary

  • Segmental — Seg*men tal, a. 1. Relating to, or being, a segment. [1913 Webster] 2. (Anat. & Zo[ o]l.) (a) Of or pertaining to the segments of animals; as, a segmental duct; segmental papill[ae]. (b) Of or pertaining to the segmental organs. [1913 Webster]… …   The Collaborative International Dictionary of English

  • Segmental organs — Segmental Seg*men tal, a. 1. Relating to, or being, a segment. [1913 Webster] 2. (Anat. & Zo[ o]l.) (a) Of or pertaining to the segments of animals; as, a segmental duct; segmental papill[ae]. (b) Of or pertaining to the segmental organs. [1913… …   The Collaborative International Dictionary of English

  • Segmental tubes — Segmental Seg*men tal, a. 1. Relating to, or being, a segment. [1913 Webster] 2. (Anat. & Zo[ o]l.) (a) Of or pertaining to the segments of animals; as, a segmental duct; segmental papill[ae]. (b) Of or pertaining to the segmental organs. [1913… …   The Collaborative International Dictionary of English

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

  • Collecting duct system — Scheme of renal tubule and its vascular supply. Latin tubulus renalis colligens Gray s …   Wikipedia

  • branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery …   Medical dictionary

  • Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… …   Medical dictionary

  • Ramus — In anatomy, a branch, such as a branch of a blood vessel or nerve. For example, the ramus acetabularis arteriae circumflexae femoris medialis is the branch of an artery that goes to the socket of the hip joint. The plural of ramus is rami. * * *… …   Medical dictionary

  • List of cutaneous conditions — This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. See also: Cutaneous conditions, Category:Cutaneous conditions, and ICD 10… …   Wikipedia

Share the article and excerpts

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