Lub pyriform sinus yog nyob rau hauv a posterolateral txoj hauj lwm nyob rau hauv kev sib raug zoo rau lub larynx. Nws yog ib feem ntawm lub pharynx. Anatomically, nws ciam teb yog cov thyroid pob txha mos thiab thyrohyoid membrane tom qab, thiab cov pob txha mos cricoid thiab aryepiglottic fold medially.
Pyriform fossae nyob qhov twg?
Piriform fossa yog ib qho extracapsular cheeb tsam ntawm thaj tsam ze ntawm lub femur. Nws yog ib qho me me, qhov kev nyuaj siab nyob rau qhov kawg ntawm qhov loj dua trochanter qhov twg cov leeg piriformis tau ntxig.
YPuas yog pyriform sinus ib feem ntawm Supraglottis?
Qhov feem ntau caudal ntawm pyriform sinus nyob ntawm theem ntawm cov suab lus tseeb. Sab nraub qaum ntawm aryepiglottic folds tsim cov phab ntsa nruab nrab ntawm pyriform sinus (Fig.2–59). Qhov no suav hais tias yog thaj chaw marginal vim tias aryepiglottic quav yog ib feem ntawm ob qho tib si hypopharynx thiab supraglottic larynx.
Pyriform sinus cancer yog dab tsi?
Medial phab ntsa pyriform sinus hlav feem ntau kis raws mucosal nto mus rau aryepiglottic folds thiab tuaj yeem nkag mus rau hauv lub larynx los ntawm kev koom nrog qhov chaw paraglottic. Cov qog nqaij hlav ntawm phab ntsa sab nraud thiab apex feem ntau cuam tshuam cov thyroid pob txha.
Dab tsi ua rau pyriform sinus residue?
Txo laryngeal elevation ua rau cov khoom seem hauv thaj tsam ntawm laryngeal vestibule vim lub larynx tsawg dhau thiab khaws cov zaub mov thaum nqos. Vim hais tias cov hlab ntaws tsis nce siab zoo, cheeb tsam cricopharyngeal tsis qhib dav thiab muaj cov seem seem hauv pyriform sinuses.
