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The pyriform sinus (also piriform recess, piriform sinus, piriform fossa, or smuggler's fossa) is a small recess on either side of the laryngeal inlet. It is bounded medially by the aryepiglottic fold, and laterally by the thyroid cartilage and thyrohyoid membrane. [1] The fossae are involved in speech.
for bone drilling Mollison's self-retaining haemostatic mastoid retractor: used in mastoid surgeries to retract overlying tissues Staecke's guide and protector: used in mastoid surgeries Chisel: removing parts of bones Mastoid gouge: removing parts of mastoid bones MacEwen's cell seeker with curette: used to curette within the mastoid Lempert's ...
Superiorly, the retropharyngeal space terminates at the base of the skull (more specifically, at the clivus [2]). [1] [5] Inferiorly, the true RPS terminates at a variable level along the upper thoracic spine with the fusion of alar fascia and visceral fascia; [1] sources either give the inferior termination of the true RPS as occurring at approximately the vertebral level of T4 [2] or at a ...
Bones of the head and neck (1 C, 177 P) ... Head and neck anatomy; Head massage; ... Pyriform sinus; Q. Quadrangular membrane; R.
The peripharyngeal space is a space in the neck. [1] It can be split into the retropharyngeal space and the parapharyngeal space. [2] References
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The piriform aperture, pyriform aperture, or anterior nasal aperture is a pear-shaped opening in the human skull. Its long axis is vertical, and narrow end upward; in the recent state it is much contracted by the lateral nasal cartilage and the greater and lesser alar cartilages of the nose .
Although initial evaluation is typically by physical exam and endoscopy, follow up with CT and MRI usually is needed if surgical intervention is planned. [2] Bony anatomy around the space includes the skull base superiorly, and the greater cornu (or greater horns) of the hyoid bone the apex