FINAL CHPT 12 Quiz 1

Cones are more sensitive to light than rods, but rods are important for color vision.

• True

• False

What condition is due to an abnormality in the curvature of the lens or cornea, resulting in some areas of blurry vision?

• Presbyopia

• Myopia

• Hyperopia

• Astigmatism

When does refraction of light occur?

• When light passes at a right angle between two media with identical densities.

• When light passes at an angle between two media with identical densities.

• When light passes at an angle from one medium to another with a different density.

• When light passes at a right angle from one medium to another with a different density.

Tags

NGSS.MS-PS4-2

Where is the spiral organ located?

• In the cochlear duct

• In the scala tympani

• In the scala vestibuli

What structure contains the receptors for the sense of hearing?

• Semicircular canals

• Ampulla

• Utricle

• Spiral organ

The area of the retina with the sharpest vision is the optic disc.

• True

• False

What is the destination of fibers of the spinothalamic tract transmitting pain and temperature information?

• Hypothalamus

• Brainstem

• Thalamus

• Cerebellum

Jared has been an avid fan of rock music for many years and has attended numerous concerts, getting as close to the stage as possible. He has never worn earplugs or protective earwear. Now in his 50s, he has become hard-of-hearing and can no longer detect quiet sounds or low talking. How might his symptoms be explained?

• He must have used the antibiotic streptomycin while at a concert which weakened the structures in his inner ear, making them less able to respond to sound waves.

• He has developed a brain tumor that puts pressure on the vestibulocochlear nerve.

• His tympanic membrane has hardened.

• His hair cells are permanently damaged and desensitized to loud sounds.

Tears contain an enzyme that reduces the risk of eye infection.

• True

• False

Thermoreceptors are stimulated by changes in chemical concentrations.

• True

• False