Chapter 8 Homework

Which fluid-filled structure in the inner ear is responsible for detecting sound?

Cochlea

What is the function of the Eustachian tube in the ear?

Equalizes pressure between the middle ear and nasopharynx

Which part of the ear is most likely damaged in sensorineural hearing loss?

Cochlea

Which disorder involves a buildup of fluid in the inner ear, leading to dizziness, tinnitus, and hearing loss?

Ménière’s disease

What is the primary function of the cornea in the eye?

Refract light as it enters the eye

Which structure in the eye controls the size of the pupil and regulates the amount of light entering the eye?

Iris

Which structure is responsible for transmitting sound waves from the outer ear to the middle ear?

Tympanic membrane

What is the function of the rods in the retina?

Function in dim light and provide peripheral vision

Tinnitus

Ringing or buzzing in the ears

Conjunctivitis

Inflammation of the conjunctiva

Presbyopia

Inability to focus on nearby objects due to aging

Astigmatism

Irregular curvature of the cornea or lens

How can the patient prevent further damage to his hearing?

Use earplugs in noisy environments

Which condition involves clouding of the eye’s lens, leading to blurred vision?

Cataract

Which condition is characterized by increased pressure in the eye, leading to vision loss if untreated?

Glaucoma

Which nerve transmits visual information from the retina to the brain?

Optic nerve

What is the primary cause of the patient’s hearing loss?

Exposure to loud noise

Which treatment is most appropriate for the patient?

Hearing aids

What is the role of the semicircular canals in the ear?

Maintain balance and equilibrium