Definition of Sinuses. Meaning of Sinuses. Synonyms of Sinuses

Here you will find one or more explanations in English for the word Sinuses. Also in the bottom left of the page several parts of wikipedia pages related to the word Sinuses and, of course, Sinuses synonyms and on the right images related to the word Sinuses.

Definition of Sinuses

Sinuses
Sinus Si"nus, n.; pl. L. Sinus, E. Sinuses. [L., a bent surface, a curve, the folds or bosom of a garment, etc., a bay. Cf. Sine, n.] 1. An opening; a hollow; a bending. 2. A bay of the sea; a recess in the shore. 3. (Anat. & Zo["o]l.) A cavity; a depression. Specifically: (a) A cavity in a bone or other part, either closed or with a narrow opening. (b) A dilated vessel or canal. 4. (Med.) A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice. 5. (Bot.) A depression between adjoining lobes. Note: A sinus may be rounded, as in the leaf of the white oak, or acute, as in that of the red maple. Pallial sinus. (Zo["o]l.) See under Pallial. Sinus venosus. [L., venous dilatation.] (Anat.) (a) The main part of the cavity of the right auricle of the heart in the higher vertebrates. (b) In the lower vertebrates, a distinct chamber of the heart formed by the union of the large systematic veins and opening into the auricle.

Meaning of Sinuses from wikipedia

- base under the pituitary gland Anal sinuses, the furrows which separate the columns in the **** Dural venous sinuses, venous channels found between layers...
- Paranasal sinuses are a group of four paired air-filled spaces that surround the nasal cavity. The maxillary sinuses are located under the eyes; the frontal...
- occurring in the sinus cavities can affect the chest and lungs. Paranasal sinuses Maxillary Ethmoid Sphenoid Frontal Dural venous sinuses Anterior midline...
- coronary arteries. There are generally three aortic sinuses, one anterior and two posterior sinuses. These give rise to coronary arteries:[better source needed]...
- The pyramid-shaped maxillary sinus (or antrum of Highmore) is the largest of the paranasal sinuses, located in the maxilla. It drains into the middle...
- moves into the cortical sinuses. After traversing the cortex, lymph collects in the medullary sinuses. Finally, all of these sinuses drain into the efferent...
- The sigmoid sinuses (sigma- or s-shaped hollow curve), also known as the pars sigmoid, are paired dural venous sinuses within the skull that receive blood...
- The frontal sinuses are one of the four pairs of paranasal sinuses that are situated behind the brow ridges. Sinuses are mucosa-lined airspaces within...
- parts of Africa. Preauricular sinuses are inherited features, and frequently appear next to both ears. Preauricular sinuses can be ****ociated with other...
- The transverse sinuses (left and right lateral sinuses), within the human head, are two areas beneath the brain which allow blood to drain from the back...