blood sinus

blood sinus

an endothelial-lined, blood-filled cavity between the external sheath and the outer connective tissue capsule of the hair follicles associated with tactile hairs such as whiskers and vibrissae which are found on the muzzle, chin and above the eyes in many species. See also tactile hair.
References in periodicals archive ?
5A, pathological changes showed that the blood sinus and hemopoietic tissue of the sternum marrow in control group were rich, however, adipose tissues were rare.
The area around the cyst consisted of kermesinus blood sinus.
Different factors contribute to the diagnosis: (1) extensive necrosis cystic region at the centre of the mass may significantly decrease the number of cells producing catecholamine; (2) interstitial tissue without bioactivity may be the main ingredient of the neoplasm; considerable blood sinus around the cystic area is also demonstrated; (3) most of the catecholamines and metabolic product may be stored in the capsular mass, which infuses intravenously into the blood circulation when isolating the mass; as such, a hypertension crisis is possible.