Lab 11

What is the function of the auricle or pinna in the ear?

• To amplify sound waves

• To collect sound waves and direct them into the ear canal

• To produce ear wax

• To transmit vibrations to the inner ear

What is the tympanic membrane more commonly known as?

• Ear canal

• Ear wax

• Ear drum

• Ear lobe

What is the primary function of cerumen (ear wax)?

• To amplify sound

• To protect the ear by trapping dust and debris

• To transmit sound vibrations

• To connect the middle ear to the nasopharynx

Which of the following bones is not part of the auditory ossicles?

• Malleus

• Incus

• Stapes

• Helix

What is another name for the pharyngotympanic tube?

• External acoustic meatus

• Tympanic membrane

• Eustachian tube

• Auricle

What is the term for an inflamed middle ear?

• Otitis media

• Otitis externa

• Otitis interna

• Otitis superior

Which muscle is attached to the malleus and involved in the attenuation reflex?

• Tensor tympani muscle

• Stapedius muscle

• Cochlear muscle

• Auricular muscle

What is the purpose of ventilation tubes in the ear?

• To enhance hearing

• To drain fluid and prevent infections

• To amplify sound

• To block external noise

What is the membranous labyrinth suspended in?

• A bony labyrinth

• A muscular labyrinth

• A fatty labyrinth

• A fibrous labyrinth

What fluid fills the membranous labyrinth?

• Endolymph

• Perilymph

• Cerebrospinal fluid

• Synovial fluid