Chapter 10: Sensory Systems Quiz

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  • 1/18 Questions

    Odorant molecules must be dissolved in mucus if they are to bind to olfactory receptors (True / False).

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About This Quiz

The sensory system is mainly made up of the organs that help in human sense. We have five sensory organs, which include the ears, tongue, skin, nose and eyes and they have receptors that relay information through sensory neurons to the appropriate places within the nervous system. Test out what you recall from chapter 10 on the sensory system by taking up the quiz below on the topic. All the best!

Chapter 10: Sensory Systems Quiz - Quiz

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  • 2. 

    A phasic receptor adapts (quickly/ slowly) to a constant stimulus

    Explanation
    Phasic receptors are sensory receptors that rapidly adapt to a constant stimulus. This means that they quickly stop responding to a continuous or prolonged stimulus, allowing them to focus on detecting changes or new stimuli in the environment. This adaptation helps prevent sensory overload and allows the body to prioritize detecting important or novel information.

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  • 3. 

    Rods and Cones differ with regard to the type of (retinal / opsin) they contain.

    Explanation
    Rods and cones are two types of photoreceptor cells in the retina of the eye. They differ in the type of opsin they contain. Opsin is a protein that is responsible for capturing light and initiating the process of vision. Rods contain a type of opsin called rhodopsin, which is responsible for vision in low light conditions and the perception of black and white. Cones, on the other hand, contain three different types of opsins, known as red, green, and blue opsins, which are responsible for color vision and visual acuity in bright light conditions.

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  • 4. 

    The pitch of sound vibration reflects its (amplitutde/ frequency)

    Explanation
    The pitch of sound refers to how high or low a sound is perceived to be. The frequency of a sound wave determines its pitch. Higher frequency waves have a higher pitch, while lower frequency waves have a lower pitch. Therefore, the statement that the pitch of sound vibration reflects its frequency is correct.

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  • 5. 

    A given taste receptor cell responds to only one of the four primary tastes (true / false).

    Explanation
    Taste receptor cells do not respond to only one of the four primary tastes. Instead, each taste receptor cell is capable of responding to multiple tastes. This is because taste perception is a complex process that involves the activation of different combinations of taste receptors in response to different stimuli. Therefore, the statement that a taste receptor cell responds to only one of the four primary tastes is false.

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  • 6. 

    The mechanism by which a receptor converts a stimulus into an electrical signal is called

    • Conduction

    • Convection

    • Transduction

    • Modulation

    • Propagation

    Correct Answer
    A. Transduction
    Explanation
    Transduction refers to the process by which a receptor converts a stimulus, such as light or sound, into an electrical signal that can be transmitted to the brain. This electrical signal is then interpreted by the brain, allowing us to perceive and respond to the stimulus. Conduction, convection, modulation, and propagation are not directly related to the conversion of a stimulus into an electrical signal, making them incorrect choices.

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  • 7. 

    The ability to perceive different frequencies in sound vibrations is based on the fact that

    • The stereocilia of any given hair cell respond to one frequency only

    • Different areas of the basilar membrane resonate at different frequencies such that a sound of a particular frequency causes only a certain region of the membrane to vibrate

    • The frequency of action potentials in the cochlear nerve varies in proportion to the frequency of a sound stimulus

    Correct Answer
    A. Different areas of the basilar membrane resonate at different frequencies such that a sound of a particular frequency causes only a certain region of the membrane to vibrate
    Explanation
    The ability to perceive different frequencies in sound vibrations is based on the fact that different areas of the basilar membrane resonate at different frequencies such that a sound of a particular frequency causes only a certain region of the membrane to vibrate. This means that when sound waves enter the ear, they cause specific regions of the basilar membrane to vibrate based on their frequency. The hair cells located in these specific regions are then stimulated, sending signals to the brain that are interpreted as different frequencies of sound.

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  • 8. 

    The stereocilia for hearing are exposed to

    • Endolymph in the vestibular duct

    • Perilymph in the vestibular duct

    • Endolymph in the cochlear duct

    • Perilymph in the cochlear duct

    • Endolymph in the tympanic duct

    Correct Answer
    A. Endolymph in the cochlear duct
    Explanation
    The stereocilia for hearing are exposed to endolymph in the cochlear duct. Endolymph is the fluid that fills the cochlea, which is the part of the inner ear responsible for hearing. The stereocilia are tiny hair-like structures located on the sensory cells in the cochlea. When sound waves enter the cochlea, they cause the fluid in the cochlear duct to move, which in turn causes the stereocilia to bend. This bending of the stereocilia triggers the sensory cells to send electrical signals to the brain, allowing us to perceive sound.

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  • 9. 

    Information about touch detected on the left side of the body is transmitted to the brain in the dorsal columns on the _________ side of the spinal cord.

    Correct Answer
    left
    Explanation
    Touch information detected on the left side of the body is transmitted to the brain through the dorsal columns on the left side of the spinal cord. The spinal cord is responsible for relaying sensory information from the body to the brain. In this case, since the touch is detected on the left side, the sensory information is transmitted through the corresponding left dorsal columns of the spinal cord.

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  • 10. 

    The first neurons that support production of action potentials in the visual pathway are (photoreceptors/ biopolar cells/ ganglion cells).

    Correct Answer
    ganglion cells
    Explanation
    The ganglion cells are the first neurons in the visual pathway that generate action potentials. These cells receive input from bipolar cells, which in turn receive input from photoreceptors. The ganglion cells transmit the processed visual information from the retina to the brain via their axons, forming the optic nerve. Therefore, they play a crucial role in the transmission of visual signals from the eye to the brain.

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  • 11. 

    A single ganglion cell will either be excited or inhibited by light applied to its visual field (True / false).

    Correct Answer
    false
    Explanation
    A single ganglion cell can be excited or inhibited by light applied to its visual field. The response of a ganglion cell depends on the type of photoreceptors that are stimulated in its receptive field. Some ganglion cells are excited by light, while others are inhibited. Therefore, the statement that a single ganglion cell will either be excited or inhibited by light applied to its visual field is false.

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  • 12. 

    Receptors are most sensitive to energy from the _________ stimulus.

    Correct Answer
    adequate
    Explanation
    Receptors are most sensitive to energy from the adequate stimulus. This means that receptors are designed to respond most effectively to a specific type or range of stimuli. The term "adequate" refers to the stimulus that is best suited for activating a particular receptor. Therefore, the correct answer is "adequate."

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  • 13. 

    A hair cell in the cochlea can be excited by sounds of different frequencies (true / false).

    Correct Answer
    false
    Explanation
    Hair cells in the cochlea are responsible for detecting sound vibrations and converting them into electrical signals that can be interpreted by the brain. Each hair cell is specialized to respond to a specific frequency of sound, meaning that different hair cells are excited by different frequencies. Therefore, it is true that a hair cell in the cochlea can be excited by sounds of different frequencies.

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  • 14. 

    The Two types of thermoreceptors are ___________ and _________.

    Correct Answer
    warm cold
    Explanation
    Thermoreceptors are sensory receptors that detect changes in temperature. They are responsible for sensing both warm and cold stimuli. Therefore, the two types of thermoreceptors are warm thermoreceptors, which detect warm stimuli, and cold thermoreceptors, which detect cold stimuli.

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  • 15. 

    The process by which the lens becomes stronger for close-up vision is called ____________.

    Correct Answer
    Accommodation
    Explanation
    Accommodation refers to the process by which the lens of the eye adjusts its shape in order to focus on objects at different distances. When focusing on close-up objects, the lens becomes stronger, or more curved, allowing for clearer vision at close range. This adjustment in lens shape is known as accommodation.

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  • 16. 

    Which of the following best illustrates the concept of an adequate stimulus?

    • When a boxer gets punched in the eye, he perceives light

    • Rotation of the head stimulates certain receptors in the vestibular system but not those in the visual system

    • Information from different photoreceptors converges on a single ganglion cell that projects to the lateral geniculate nucleus.

    • Hair cells in the cochlea are stimulated by sound vibrations over a wide range of frequencies

    Correct Answer
    A. Rotation of the head stimulates certain receptors in the vestibular system but not those in the visual system
    Explanation
    Rotation of the head stimulates certain receptors in the vestibular system but not those in the visual system. This best illustrates the concept of an adequate stimulus because the vestibular system is specifically designed to detect changes in head position and movement, while the visual system is designed to detect light and visual stimuli. The rotation of the head is the appropriate and specific stimulus for the receptors in the vestibular system, making it an adequate stimulus for those receptors.

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  • 17. 

    The parasympathetic nervous system causes

    • Contraction of the radial muscle of the iris

    • Contraction of the ciliary muscle

    • Pupillary dialation

    • A and c

    • All of the above

    Correct Answer
    A. Contraction of the ciliary muscle
    Explanation
    The parasympathetic nervous system is responsible for controlling various involuntary functions of the body. In the case of the eye, it causes the contraction of the ciliary muscle. This muscle is located in the eye and is responsible for changing the shape of the lens to allow for proper focusing on near objects. Therefore, when the parasympathetic nervous system is activated, it leads to the contraction of the ciliary muscle.

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  • 18. 

    The three types of nociceptors are __________, _________, and __________.

    Correct Answer
    mechanical thermal polymodal
    Explanation
    The question asks for the three types of nociceptors, which are sensory receptors that respond to potentially damaging stimuli. The correct answer is "mechanical, thermal, and polymodal." Mechanical nociceptors respond to mechanical stimuli such as pressure or stretching, thermal nociceptors respond to temperature extremes, and polymodal nociceptors respond to a combination of mechanical, thermal, and chemical stimuli.

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  • Current Version
  • Sep 25, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 01, 2009
    Quiz Created by
    Iheartwaffles
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