Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
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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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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.
Which of the following changes to an action potential indicates a larger stimulus?
a. Increased frequency
b. Increased wavelength
c. Increased amplitude
d. Increased speed
Chapter 12 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
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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- What do multiple sclerosis and ALS (amyotropic lateral sclerosis) have in common?a. They both are more common in young men than in young women.b. They both impair the initiation of action potentials.c. They both damage the myelin sheath, disrupting action potential transmission.d. They both impair nerve function in the peripheral nervous systemarrow_forwardWhen arm muscles hurt after heavy exercise, the pain is detected bya. neurotransmitters.b. interoceptors.c. associative neurons.d. exteroceptors.arrow_forwardLocal anesthetics "block" the action potential and therefore do not allow "pain" information to proceed to the brain and spinal cord. In the presence of these molecules (local anesthetics) 'threshold' is essentially "ignored". The molecules most logically work by: 23. a. Decreasing the intracellular [potassium] b. Blocking the opening of the voltage-gated potassium channels c. Decreasing the extracellular [sodium] d. Blocking the opening of the voltage-gated sodium channelsarrow_forward
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