Question 1

Which of the following best describes the role of sensory receptors in the sensory system?

Accepted Answer

They convert external stimuli into information that can be used by the nervous system.

Question 2

A patient presents with loss of equilibrium and frequent falls. Which part of the ear is most likely affected?

Accepted Answer

Semicircular canals

Question 3

Which equation correctly relates the frequency ($$f$$), wavelength ($$\lambda$$), and speed of sound ($$v) in $$the ear?

Accepted Answer

$$v = f 	imes \lambda$$

Question 4

Which of the following is NOT a primary taste sensation detected by taste buds?

Accepted Answer

Spicy

Question 5

A person is unable to distinguish between salty and sour tastes. Which type of receptor is most likely malfunctioning?

Accepted Answer

Ion channel receptors

Question 6

Which structure in the olfactory system is responsible for sending signals to the cerebral cortex and limbic system?

Accepted Answer

Olfactory bulb

Question 7

Which of the following best explains the placebo effect in pain perception?

Accepted Answer

It is the reduction of pain due to psychological expectation rather than actual treatment.

Question 8

Which cells in the retina are responsible for converting light into electrical signals?

Accepted Answer

Rods and cones

Question 9

A patient has difficulty hearing high-frequency sounds. Which part of the cochlea is most likely damaged?

Accepted Answer

The base of the cochlea

Question 10

Which pathway correctly describes the transmission of pain signals from the periphery to the brain?

Accepted Answer

Peripheral nociceptor → spinal cord → thalamus → somatosensory cortex

Question 11

Which equation best represents the relationship between stimulus intensity ($$I) $$and receptor potential ($$V) in $$sensory transduction?

Accepted Answer

$$V = k 	imes I$$

Question 12

Which cranial nerve is primarily responsible for transmitting auditory information from the ear to the brain?

Accepted Answer

Vestibulocochlear nerve (VIII)

Question 13

Which of the following is a function of the vestibular apparatus?

Accepted Answer

Maintenance of balance and spatial orientation

Question 14

Which of the following best describes the difference between rods and cones in the retina?

Accepted Answer

Rods are more sensitive to low light, cones are responsible for color vision.

Question 15

A patient reports loss of smell after a head injury. Which structure is most likely damaged?

Accepted Answer

Olfactory bulb

Question 16

Which of the following is a correct sequence for the auditory pathway from the ear to the cortex?

Accepted Answer

Cochlea → auditory nerve → brainstem → thalamus → auditory cortex

Question 17

Which of the following best explains the difference between ion channel and GPCR taste receptors?

Accepted Answer

Ion channel receptors directly allow ions to pass through the membrane, while GPCRs activate intracellular signaling cascades.

Question 18

Which part of the eye is responsible for focusing light onto the retina?

Accepted Answer

Lens

Question 19

Which of the following is a real-world example of specific hunger?

Accepted Answer

Craving salty foods after excessive sweating

Question 20

Which equation best represents the threshold for activation ($$T) of a $$sensory receptor given stimulus intensity ($$I) $$and receptor sensitivity ($$S$$)?

Accepted Answer

$$I \geq T$$

CH 10b Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards