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

- 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...
- base under the pituitary gland Anal sinuses, the furrows which separate the columns in the **** Dural venous sinuses, venous channels found between layers...
- occurring in the sinus cavities can affect the chest and lungs. Paranasal sinuses Maxillary Ethmoid Sphenoid Frontal Dural venous sinuses Anterior midline...
- non-coronary sinus. The aortic sinuses are typically more prominent than the pulmonary sinuses. If the coronary arteries arise from the wrong aortic sinuses, this...
- sinus, then into cortical sinuses. After p****ing through the cortex, lymph then collects in medullary sinuses. All of these sinuses drain into the efferent...
- 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...
- 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...
- paranasal sinuses – the frontal sinus, the sphenoid sinus, the ethmoid sinus and the maxillary sinus drain into regions of the nasal cavity. The sinuses are...
- 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...