sinus

(redirected from inferior petrosal sinus)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to inferior petrosal sinus: cavernous sinus

sinus,

cavity or hollow space in the body, usually filled with air or blood. In humans the paranasal sinuses, mucus-lined cavities in the bones of the face, are connected by passageways to the nose and probably help to warm and moisten inhaled air. When drainage from them is blocked, as after a cold, these sinuses often become infected, a condition called sinusitis. The accumulation of pus results in pressure, headaches, pain, and general discomfort. In invertebrates one of the spaces among the muscles and viscera through which blood returns to the heart is also known as a sinus.

sinus

(sÿ -nŭs) A semienclosed break along the borders of a lunar mare or in a scarp. The word is used in the approved name of such a feature on the Moon. (Latin: bay)

Sinus

 

in anatomy, a cavity, protrusion, or long closed channel. In vertebrates (including man), the term “sinus” refers to a channel filled with venous blood in the dura mater. The cavity in some cranial bones is also called a sinus. [23–1297–]

sinus

[′sī·nəs]
(biology)
A cavity, recess, or depression in an organ, tissue, or other part of an animal body.

sinus

1. Anatomy
a. any bodily cavity or hollow space
b. a large channel for venous blood, esp between the brain and the skull
c. any of the air cavities in the cranial bones
2. Pathol a passage leading to a cavity containing pus
3. Botany a small rounded notch between two lobes of a leaf, petal, etc.
4. an irregularly shaped cavity
References in periodicals archive ?
The traditional approach has been embolizing the fistula from arterial approach however, in some cases due to multiple arterial feeders transvenous embolization is also adopted and cavernous sinus is directly occluded via inferior petrosal sinus approach.
Diagnostic errors aider inferior petrosal sinus sampling.
This procedure is called inferior petrosal sinus sampling.
Bilateral simultaneous inferior petrosal sinus sampling (BIPSS) is a highly sensitive but invasive method used in the differential diagnosis of ACTH-dependent CS.
Although the patient had an adenoma on the right side of the pituitary gland, the BIPSS results showed about 3-fold gradient in favor of the left inferior petrosal sinus because of the hypoplasia of the right petrosal sinus (Table 3).

Full browser ?