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meatus
‖ meatus (miːˈeɪtəs) Pl. meatus (miːˈeɪtjuːs), meatuses. [L. meātus (u-stem), f. meāre to flow, run.] † 1. A natural channel or tubular passage. Obs.1665 Sir T. Herbert Trav. (1677) 187 This Caspian hath some secret meatus or intercourse with some Sea. 1675 Evelyn Terra (1776) 34 Clay is of all othe...
Oxford English Dictionary
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Meatus
In anatomy, a meatus (, ,<ref
>OED 2nd edition, 1989, as .</ref> : meatus or meatuses)<ref
>Entry "meatus" in Merriam-Webster Online Dictionary. : the superior meatus, middle meatus and inferior meatus; each are passages through the nasal cavity within the skull
(The plural forms of "meatus" are
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Meatus acusticus
Meatus acusticus can refer to:
Ear canal (meatus acusticus externus)
Internal auditory meatus (meatus acusticus internus)
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Acoustic meatus
Acoustic meatus may refer to:
Internal acoustic meatus (or internal auditory meatus)
External acoustic meatus (or ear canal)
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Auditory meatus
Auditory meatus can refer to:
external auditory meatus
internal auditory meatus
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Nasal meatus
In anatomy, the term nasal meatus can refer to any of the three meatuses (passages) through the skulls nasal cavity: the superior meatus (meatus nasi superior ), middle meatus (meatus nasi medius), and inferior meatus (meatus nasi inferior).
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Urinary meatus
The urinary meatus (, ; : meatus or meatuses), also known as the external urethral orifice, is the opening of the urethra. The meatus has varying degrees of sensitivity to touch. The meatus is located on the glans of the penis or in the vulval vestibule.
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Internal auditory meatus
The internal auditory meatus (also meatus acusticus internus, internal acoustic meatus, internal auditory canal, or internal acoustic canal) is a canal Structure
The opening to the meatus is called the porus acusticus internus or internal acoustic opening.
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颞骨
茎突：styloid process
乳突：mastoid process
颧突：zygomatic process
鼓膜部：tympanic part
关节结节：articular tubercle
下颌窝：mandibular fossa
外耳道：external acoustic meatus
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Meatal stenosis
Urethral meatal stenosis is a narrowing (stenosis) of the opening of the urethra at the external meatus , thus constricting the opening through which Symptoms and signs
Abnormal strength and direction of urinary stream
Visible narrow opening at the meatus in boys
Irritation, scarring or swelling of
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内耳道
内耳道（英文：Internal auditory meatus 或 Internal acoustic meatus）是颅骨上内的一个腔道，位于和内耳之间，颜面神经、前庭神经、耳蜗神经及相关血管均从中通过。
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Porion
The porion is the point on the human skull located at the upper margin of each ear canal (external auditory meatus, external acoustic meatus). passing through the inferior margin of the left orbit (the point called the left orbitale) and the upper margin of each ear canal or external auditory meatus
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Ethmoid bulla
The ethmoid bulla (or ethmoidal bulla) is a rounded elevation upon the lateral wall of the middle nasal meatus (nasal cavity inferior to the middle nasal The bulla may be a pneumatised cell or a bony prominence found in middle meatus.
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Body orifice
, for urination and ejaculation
In females, the urinary meatus, for urination and female ejaculation
In females, the vagina, for menstruation, sexual See also
Internal urethral orifice
Mucosa
Mucocutaneous boundary
Meatus
Body cavity
Anatomy
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Sphenoethmoidal recess
The sphenoethmoidal recess is a small triangular space of the superior nasal meatus of the nasal cavity into which the sphenoidal sinus and the posterior References
External links
- "The turbinates have been cut and removed to illustrate the meatus and openings into them."
Nose
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