- Ridley sinus
- Rid·ley sinus (ridґle) [Humphrey Ridley, English anatomist, 1653–1708] sinus circularis.
Medical dictionary. 2011.
Medical dictionary. 2011.
Ridley sinus — s. circularis … Medical dictionary
sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or … Medical dictionary
Ridley — Humphrey, English anatomist, 1653–1708. See R. circle, R. sinus, circulus venosus ridleyi … Medical dictionary
circular sinus — n a circular venous channel around the pituitary gland formed by the cavernous and intercavernous sinuses * * * sinus circularis the venous ring around the hypophysis formed by the two cavernous and the anterior and posterior intercavernous… … Medical dictionary
СИНУСЫ — твердой мозговой оболочки (sinus durae matris), или венозные пазухи, представляют собой вместилища, не спадающиеся, лишен | ные клапанов, в большинстве на поперечном разрезе треугольного очертания. Местами в них имеются перекладины, особенно… … Большая медицинская энциклопедия
List of endangered animal species — This is a list of endangered animal species according to the World Conservation Union (IUCN) Red List. The list includes endangered species of the kingdom Animalia. NOTOC A* Acheilognathus elongatus * Acipenser Endangered * Acrocephalus… … Wikipedia
List of endangered species in North America — Below is the United States Fish and Wildlife Service list of endangered and threatened animal and plant species in North America.AnimalsMammals Abaco equis bark (abaco barb horse) Alouatta palliata (Mantled howler monkey) Aplodontia rufa nigra… … Wikipedia
Huntington's disease — Classification and external resources A microscope image of … Wikipedia
Arthur Keith — Arthur Berridale Keith (* 5. Februar 1866 in Old Machar (Aberdeenshire), Schottland; † 7. Januar 1955 in Downe (Kent), England) war ein schottischer Anatom und Anthropologe. Inhaltsverzeichnis 1 Familie 2 Ausbildung und Beruf … Deutsch Wikipedia
circle — 1. [TA] In anatomy, a ring shaped structure or group of structures, as formed by anastomosing arteries or veins, or by connected (communicating) nerves, 2. A line or process with every point approximately equidistant from the center. SYN:… … Medical dictionary