sinus
5
4.8
- noun
- /ˈsaɪnəs/
- Specialized
- During the surgery, the team had to carefully avoid damaging the sigmoid sinus to prevent excessive bleeding.
- sigmoid sinus
- sinus thrombosis
- lateral sinus
Examples
-
An MRI revealed that the transverse sinus on the left side was blocked, which could affect blood flow.
-
Consequently, there is resorption of gases into the sinus capillaries, which creates a negative pressure.
Academic text (2008) -
However, its role in patients with chronic heart failure who are in normal sinus rhythm remains unclear.
Academic text (2011) -
Blood pressure was not obtainable via Doppler, and the electrocardiogram continued to show sinus rhythm.
Academic text (2007) -
Curettage was performed on the sigmoid sinus until all disease was cleared and the dura exposed.
Academic text (2007) -
In patients who have undergone electrophysiological assessment, sinus node function and atrioventricular conduction seem to be preserved.
Academic text (2002) -
Magnetic resonance imaging showed thrombosis of both transverse sinuses and the right sigmoid sinus.
Academic text (1996) -
The doctor explained that the cavernous sinus is crucial for venous drainage from the brain.
Synonyms
1
7.7
A large channel in the body, often in the brain, that holds blood and has thin walls
Compounds
- Specialized
1
8.2
A large area of veins on each side of the pituitary gland that drains blood from the brain and face
- Specialized
1
7.0
A short vein that collects blood from the heart muscle and carries it to the right atrium
- Specialized
1
5.4
Air-filled spaces in the bones around the nose that connect to the inside of the nose
- Specialized
1
7.7
A large channel in the body, often in the brain, that holds blood and has thin walls
- Specialized
1
9.1
A channel in the outer layer covering the brain that drains blood from the back of the head
- Specialized
1
9.1
A large S-shaped vein in the covering of the brain that takes blood to a vein in the neck
- Specialized
1
9.0
A large vein in the outer covering of the brain that carries blood from deep brain veins
- Specialized
A small air space in the bone between the nose and eyes that opens into the nose
- Specialized
A small sea mammal like a dolphin that lives only in the Gulf of California and is almost extinct
- Specialized
A small vein that drains blood from the brain's outer covering near the tentorium
- Specialized
A short vein in the heart that collects blood from the heart's veins into the right atrium
- Specialized
Small air spaces in the bone between the eyes behind the nose bridge that connect to the nose
- Specialized
Hollow spaces in the bones around the nose lined with a thin wet layer
- Specialized
One of a pair of large veins at the base of the brain that drain blood from it
- Specialized
A large S-shaped vein at the back of the skull that carries blood from the brain
- Specialized
A channel of veins in the brain's outer covering that carries blood toward the neck
How Big
- Specialized
1
5.1
- Specialized
66
4.1
343
3.9
- Specialized
5
4.8
- Specialized
86
5.3
Surface Forms
Etymology
Sinus comes from the Latin word sinus, meaning 'bay' or 'hollow'. The idea is a space or wide channel where fluid can sit or flow, so a venous sinus is a broad passage or pocket for blood rather than a thin-walled blood vessel.