Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Question
Chapter 12, Problem 3TY
Summary Introduction
Introduction:
The strength of stimuli has a significant effect on how organisms react to them. This is in large part due to differences in how stimuli of varying intensities are processed. The frequency with which stimuli are received and the intensity of the signals depend on various factors.
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Check out a sample textbook solutionStudents have asked these similar questions
The process by which receptors covert a stimulus into a graded potential is known as: which of the following is correct?
A. Transmission
B. Receptor potential
C. Transduction
D. Action potential
Which of the following statements are true of sensory pathways? (Read carefully and select all the correct statements.)
A.
Sensory neurons carry impulses from receptors to the CNS.
B.
Sensory tracts include peripheral nerves such as the femoral nerve.
C.
Sensory receptors are different in that each type detects a specific type of change.
D.
Sensory receptors are similar in that they all interpret impulses the same way.
E.
Most of the sensory areas are in the cerebral cortex.
F.
The cranial nerves involved in sensations are part of sensory tracts.
A device that monitors the activity of the photoreceptor cells of the eye indicates that there is a constant flow of neurotransmitter being released by the photoreceptor cells. This information implies that the subject is
a. reading.
b. in a dark room.
c. outside in sunlight.
d. in a brightly lit auditorium.
e. focusing on a distant object.
Chapter 12 Solutions
Human Biology: Concepts and Current Issues
Ch. 12 - Prob. 1QCCh. 12 -
2. Should the use of all hand-held devices,...Ch. 12 - Do you approve of the law in five states that a...Ch. 12 -
1. List the five classifications of receptors in...Ch. 12 - Prob. 2CRCh. 12 -
3. Describe what information the somatic...Ch. 12 - Name the five special senses.Ch. 12 - Compare and contrast fast pain, slow pain, and...Ch. 12 - Prob. 6CRCh. 12 - Prob. 7CR
Ch. 12 - Prob. 8CRCh. 12 - Prob. 9CRCh. 12 - Prob. 10CRCh. 12 - What do the receptors in the skin for light touch...Ch. 12 - Prob. 2TYCh. 12 - Prob. 3TYCh. 12 - Receptor adaptation results when: a. sensory...Ch. 12 - Prob. 5TYCh. 12 - Different pitched sounds will result in...Ch. 12 - Prob. 7TYCh. 12 - Prob. 8TYCh. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - Prob. 11TYCh. 12 - Prob. 12TYCh. 12 - Prob. 13TYCh. 12 - Prob. 14TYCh. 12 - Which of the following can be corrected with...Ch. 12 - With the eyes closed, would an astronaut in outer...Ch. 12 - Why do you suppose that you are not normally aware...Ch. 12 - Prob. 3AWKCh. 12 - Prob. 4AWKCh. 12 - Prob. 5AWKCh. 12 - Prob. 6AWKCh. 12 - Prob. 7AWK
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- The peripheral nervous system that transfers signal to the brain is the:a. sympathetic nervous system b. parasympathetic nervous system c. sensory nervous systemd. central nervous systemarrow_forwardWhen arm muscles hurt after heavy exercise, the pain is detected bya. neurotransmitters.b. interoceptors.c. associative neurons.d. exteroceptors.arrow_forwardTonic receptors a.are fast-adapting. b.do not fire continuously to a sustained stimulus. c.produce action potentials at a greater frequency as the generator potential is increased. d.are described by all of these.arrow_forward
- 1.) The rods absorb light and initiate a neural impulse to the brain when. A.) rhodopsin splits into retinal and opsin thereby stopping the release of an inhibitory neurotransmitter B.) retinal and opsin combine into rhodopsin thereby releasing a stimulatory neurotransmitter C.) iodopsin splits into photopsin and retinal thereby stopping the release of an inhibitory neurotransmitter D.) retinal and photopsin combine into iodopsin thereby releasing a stimulatory neurotransmitter 2.) After a neuronal membrane has become depolarized its resting potential is reestablished when A.) Na^ + diffuse into the neural fibre B.) Na^ + diffuse out the neural fibre. C.) K^ + diffuse into the neural fibre D.) K^ + diffuse out the neural fibre 3.) The middle car chamber is an airfilled in the head"which is adapted to allow free movement of the tympanum as it vibrates. Unless the pressure in the chamber…arrow_forwardThe dissociation of rhodopsin in the rods in response to light causes a.the Na+ channels to become blocked. b.the rods to secrete less neurotransmitter. c.the bipolar cells to become either stimulated or inhibited. d.all of these.arrow_forwardA 10-year-old girl with Type I diabetes develops a neuropathy limited to sensory neurons with free nerve endings. Quantitative sensory testing will reveal higher-than-normal thresholds for the detection of which of the following? a. Fine touch b. Vibration c. Pressure d. Temperature e. Muscle length.arrow_forward
- Which of the following are correct? Which one or more? a. Auditory fatigue is the increase in threshold after exposure to a loud sound. Auditory adaptation is a reduction in response of the auditory receptors to a sound over time followed by a steady state. b. The change in auditory thresholds is independent of the intensity, but dependent on the duration of the loud sound. c. Exposure to loud sounds is unable to damage the hair cells in the inner ear and therefore cannot lead to a permanent threshold shift. d. Auditory adaptation is the increase in threshold after exposure to a loud sound. Auditory fatigue is a reduction in response of the auditory receptors to a sound over time followed by a steady state.arrow_forwardThe brain is able to interpret nerve impulses coming fromsensory receptors as vision, hearing, taste, and so on mainlybecausea. the impulses are of different strength (quantity).b. the impulses are of different types (quality).c. impulses originating in different sensory organs travel todifferent areas of the brain.d. None of these are correct.arrow_forwardWhich of the following is true about pain receptors? a. Alpha fibers respond to chronic pain. b. Alpha fibers are associated with dull, aching pain. c. Alpha fibers are associated with sharp, localized pain. d. Beta fibers are associated with sharp, localized pain.arrow_forward
- This image is of the very back of the eye. Light would be coming in from the left towards the right side. WHich label indicates the photo receptor rod and cone cells? A. middle layer, red and green B. rods and cones are not in this image, they are much closer to the front of the eye ball C. far right side, purple and yellow D. far left side, grayarrow_forwardTransduction of a stimulus usually causes depolarization of a sensory receptor. a.)In most receptors, what is the chemical basis for this depolarization (that is, what is the specific mechanism for the change)?b.)How is a photoreceptor different from other receptors in terms of its membrane potential? c.) Explain how photoreceptors in the light can lead to excitation of some bipolar cells and inhibition of othersarrow_forwardYou fill up the tub to take a hot bath, but the water is too hot to the touch. You try a second and third time, and within a few seconds it feels fine. Which of the following is the most likely explanation? a. The water has cooled down unusually quickly. b. Your ability to sense heat has adapted. c. Your nervous system is suddenly not functioning properly. d. Your ability to sense cold has adapted.arrow_forward
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