EpigloBis
Inłcfior phafyngcal musclc (cal)
Infcfioi phuryngcal musclc
Killian’s aica
Thyroid -caitilagc
Cricctd
cartilagc
Cncopharyngcał
musclc
Circular musclc laycr of esophagus
Trachea
Esophagus