Chap 15 Quiz

Question 1

What part of the retina is responsible for the sharpest vision?

Answer 1

Fovea centralis

Question 2

Which photoreceptor cells function in dim light?

Answer 2

. Rods

Question 3

Which sequence correctly traces the visual pathway followed by the majority of axons?

Answer 3

Optic nerve; Optic chiasm; Lateral geniculate nucleus of thalamus; Occipital lobe

Question 4

What is the function of the auditory tube?

Answer 4

To equalize air pressure between the atmosphere and the middle ear

Question 5

What is the correct chronological sequence of events for hearing?

Answer 5

The tympanic membrane vibrates; Ossicles vibrate; Pressure waves from oval window travel through the scala vestibuli; Spiral organ hair cells convert stimulus to nerve impulse

Question 6

Linear acceleration and deceleration are sensed in the

Answer 6

saccule and utricle

Question 7

Related to the olfactory pathway, which of the following statements are correct?

Answer 7

Some axons of the olfactory nerve travel to the primary olfactory cortex in the temporal lobe of cerebral cortex, while others project to structures within the limbic system and hypothalamus, where smells become associated with emotional responses.

Question 8

Related to the pathway of taste, which of the following statements are correct?

Answer 8

Facial (VII) and glossopharyngeal (IX) cranial nerves carry taste sensations to the brain.

Question 9

In the process of accommodation, it is correct to say that

Answer 9

Ciliary body contracts, reducing the tension in the suspensory ligaments and allowing the lens to become more rounded, which allows for sharper focusing of light on the retina.

Question 10

Rotational movements are detect by the

Answer 10

Semicircular canals