20. Match the part of the oarlisted in Column A with its descriptice listed in C
ID: 3519683 • Letter: 2
Question
20. Match the part of the oarlisted in Column A with its descriptice listed in Column B Column A Column B 1. Semicircular canals a fibrocantilage-lined tube that connects the middle cavity to the nasal cavity b spiral-shaped organ found withing the inner ear s, three tiny bones (malleus, incus, and stapes) found 3. Utricle within the middle ear d luid contained within the scala media e, canal leading from the riele ofthe ear to the 4 Incus S. Cochlen tympanic membrane 6 Stapes f tiny bone located within the middle ear cavity that is shaped like an anvil g chamber located within the petrous part of the temporal bone that contains the cochlea and the vestibule -7. External acoustic meatus 8. Middle ear h canal on the medial, posterior aspect of the petrous part of the temporal bone i. tiny bone loated within the middle ear cavity that is shaped like a hammer 10. Auricle 11. Stapedius muscle 12. Round window j cavity that begins at the tympanic membrane and ends at the oval window k·opening into the scala vestibuli that has the foot of the stapes covering it I. fluid contained within the scala vestibuli and scala tympani m extemal ear, composed of an elastic cartilage skeleton 13. Tensor tympani muscle 14. Internal acoustic meatus 15. Spiral organ that is covered with skin n. small hole at the end of the scala tympani that is covered by a membrane o, smallest membranous sac in the vestibule, contains receptors fro sensing vertical accelearation 16. Inner ear p three ring-like canals that are orientated at right angles to each other and communicate with the vestibule 17. Tectorial memb q organ composed of specialized epithelium that is found within the scala media (cochlear duct) of the cochlea 18.Oval window r small muscle connecting the neck of the stapes to the temporal bone s tiny bone located within the middle ear cavity that is shaped like a stirrup 19. Endolymph 20. Tympanic membrane t gelatinous membrane in which the hair cells of the spiral organ are imbedded u small muscle connecting the handle of the malleus to the cartilage of the auditory tube v. drumlike, tight, thin membrane that separates the 21. Malleus 22 Ear ossicles middle-ear cavity from the external-car cavity 23 Perilymph w largest membranous sac in the vestibule, contains receptors for sensing horizontal accelerati on 24. Auditory tube x. cranial nerve VIII, which travels through the internal acoustie meatusExplanation / Answer
2-x 7th cranial nerve
4-f anvil shape bone in middle ear
5-b spiral shape bone in inner ear
6-s stirrup shape bone in middle ear
10-i hammer shape bone in middle ear
11-r
13-u
17-t
20-v
22-e
23-l
24-a
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