Question 1

Which part of the eye is responsible for focusing light sharply onto the retina and can change its curvature to accommodate for objects at different distances?

Accepted Answer

Lens

Question 2

A person with myopia (nearsightedness) has images focused in front of the retina. Which corrective lens type is typically used to address this condition?

Accepted Answer

Concave lens

Question 3

Which structure in the inner ear is primarily responsible for converting sound wave vibrations into electrical impulses sent to the brain?

Accepted Answer

Cochlea

Question 4

According to the Place Theory of hearing, how is pitch determined?

Accepted Answer

By the place along the basilar membrane that vibrates most

Question 5

Which of the following best describes the function of rods in the retina?

Accepted Answer

They are responsible for vision in dim light and encode shades of grey.

Question 6

What is the main function of the semicircular canals in the vestibular system?

Accepted Answer

Sensing rotational movements of the head

Question 7

Which of the following statements about the visible spectrum is correct?

Accepted Answer

Wavelength determines color, and amplitude determines brightness.

Question 8

A person is exposed to a sound of 130 dB. What is the most immediate risk associated with this exposure?

Accepted Answer

Immediate risk of permanent hearing damage

Question 9

Which brain region is the first to receive visual information from the optic nerve?

Accepted Answer

Thalamus

Question 10

Which of the following best explains why the image projected onto the retina is upside down?

Accepted Answer

The lens inverts and reverses the image as it focuses light onto the retina.

Question 11

Which of the following is true about the two-point threshold for touch acuity?

Accepted Answer

It is lowest (most sensitive) on the fingers and thumb.

Question 12

Which of the following best describes the Gate Control Model of pain?

Accepted Answer

Neural mechanisms in the spinal cord regulate conscious awareness of pain by opening or closing a 'gate'.

Question 13

Which of the following is NOT a basic taste detected by the gustatory system?

Accepted Answer

Spicy

Question 14

What is the main function of the olfactory bulbs?

Accepted Answer

To register smell sensations in the brain

Question 15

Which of the following best explains why taste and smell are called 'chemical senses'?

Accepted Answer

Their receptors are stimulated by chemicals rather than light or sound waves.

Question 16

A runner experiences a 'runner’s high' after a long race. Which neurotransmitter is most likely responsible for this sensation?

Accepted Answer

Endorphins

Question 17

Which of the following statements about cones in the retina is correct?

Accepted Answer

They are concentrated at the fovea and help see color and fine detail.

Question 18

Which structure in the ear amplifies sound vibrations by about 22 times before they reach the inner ear?

Accepted Answer

Ossicles

Question 19

Which of the following best describes the function of the vestibular sacs?

Accepted Answer

Detecting the head’s position, especially when it is no longer upright

Question 20

Which of the following is a correct statement about the relationship between taste bud density and taste sensitivity?

Accepted Answer

Supertasters have more than four times as many taste buds as non-tasters.

Sensation and Perception: The Visual, Auditory, Vestibular, Somatosensory, Olfactory, and Gustatory Systems

Study Guide - Practice Questions

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