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sinus    音标拼音: [s'ɑɪnəs]
n. 窦,静脉窦,湾,下陷或凹下去的地方

窦,静脉窦,湾,下陷或凹下去的地方

sinus
n 1: an abnormal passage leading from a suppurating cavity to
the body surface [synonym: {fistula}, {sinus}]
2: any of various air-filled cavities especially in the bones of
the skull
3: a wide channel containing blood; does not have the coating of
an ordinary blood vessel [synonym: {venous sinus}, {sinus}]

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.
[1913 Webster]

2. A bay of the sea; a recess in the shore.
[1913 Webster]

3. (Anat. & Zool.) 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.
[1913 Webster]

4. (Med.) A narrow, elongated cavity, in which pus is
collected; an elongated abscess with only a small orifice.
[1913 Webster]

5. (Bot.) A depression between adjoining lobes.
[1913 Webster]

Note: A sinus may be rounded, as in the leaf of the white
oak, or acute, as in that of the red maple.
[1913 Webster]

{Pallial sinus}. (Zool.) 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.
[1913 Webster]


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  • Sinus Infection (Sinusitis): Causes, Symptoms Treatment
    Sinusitis can cause facial pain, swelling and congestion Learn the causes and how to treat it
  • Sinus (anatomy) - Wikipedia
    Sinus (anatomy) A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it Most individuals have four paired cavities located in the cranial bone or skull
  • What’s causing your sinus trouble? - Mayo Clinic Press
    Sinus pain and discomfort typically starts when your sinuses become irritated and inflamed, causing swelling that can narrow or close off the openings This makes it hard for mucus to drain out of your sinus cavities Mucus and air pressure build, causing a feeling of stuffiness and congestion
  • Sinus infection: 11 symptoms and treatments - Medical News Today
    Sinus infections, or sinusitis, occur when a virus of bacteria enters the sinuses Read on for a list of common symptoms and treatments
  • What Are Sinuses? Causes, Symptoms Best Ways to Treat Them
    Learn what sinuses are, their causes, symptoms, and treatment options Expert ENT doctors at Magrabi Hospitals explain how to breathe freely again
  • Sinus Infection (Sinusitis): Symptoms, Causes, Duration, and . . . - WebMD
    Sinusitis, also known as a sinus infection, can cause symptoms such as facial pain, congestion, and headache Learn about the causes, duration, and treatment options for sinusitis in this
  • Sinus - Wikipedia
    Sinus (anatomy), a sac or cavity in any organ or tissue Paranasal sinuses, air cavities in the cranial bones, especially those near the nose, including: Maxillary sinus, the largest of the paranasal sinuses, under the eyes, in the maxillary bones Frontal sinus, superior to the eyes, in the frontal bone, which forms the hard part of the forehead Ethmoid sinus, formed from several discrete air
  • Paranasal Sinuses: Anatomy, Function Types - Cleveland Clinic
    Pressure in your face and a stuffy nose are common symptoms of inflammation in your paranasal sinuses Here’s what else you need to know about them
  • Sinus Infection Basics | Sinus Infection | CDC
    When you have a sinus infection, one or more of your sinuses becomes inflamed Fluid builds up, which can cause congestion and runny nose
  • Sinus Cavities in the Head: Anatomy, Diagram Pictures
    There are four pairs of sinuses (named for the skull bones in which they're located) Interactive diagrams show sinus cavity locations and help visualize sinusitis, the most common type of sinus





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