EBK HUMAN ANATOMY
9th Edition
ISBN: 8220103631327
Author: Nath
Publisher: PEARSON
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Chapter 18, Problem 5RC
What could stimulate the release of an increased quantity of neurotransmitter by a hair cell into the synapse with a sensory neuron?
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What does your map of cutaneous sensations tell you about the distribution of sensory receptors in the skin?
Applying a pressure stimulus to the fluid-filled capsule of an isolated Pacinian corpuscle causes a brief burst of action potentials in the afferent neuron, which ceases until the pressure is removed, at which time another brief burst of action potentials occurs. If an experimenter removes the capsule and applies pressure directly to the afferent neuron ending, action potentials are continuously fired during the stimulus. Explain these results in the context ofadaptation.
Describe the general process of transduction in a receptor that is a cell separate from the afferent neuron. Include in your description the following terms: specificity, stimulus, receptor potential?
Chapter 18 Solutions
EBK HUMAN ANATOMY
Ch. 18 - Using the diagram, fill in the blanks below with...Ch. 18 - 2. A receptor that is especially common in the...Ch. 18 - Fine touch and pressure receptors provide detailed...Ch. 18 - Receptors in the saccule and utricle provide...Ch. 18 - 5. Deep to the subcutaneous layer, the eyelids are...Ch. 18 - Prob. 6RFTCh. 18 - Prob. 7RFTCh. 18 - Mechanoreceptors that detect pressure changes in...Ch. 18 - Prob. 9RFTCh. 18 - Auditory information about the frequency and...
Ch. 18 - Fill in the blanks below with the proper...Ch. 18 - Prob. 1RCCh. 18 - Prob. 2RCCh. 18 - 3. A person salivates when anticipating eating a...Ch. 18 - Prob. 4RCCh. 18 - 5. What could stimulate the release of an...Ch. 18 - Prob. 6RCCh. 18 - Prob. 7RCCh. 18 - Prob. 8RCCh. 18 - Prob. 9RCCh. 18 - Prob. 10RCCh. 18 - 1. Beth has surgery to remove some polyps...Ch. 18 - 2. Jared is 10 months old, and his pediatrician...Ch. 18 - Prob. 3CT
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- The graphs represent a membrane potential recording from a hair cell (graph A) and a neuron it synapses with (graph B) in response to a small stimulus at the time indicated by an arrow. Explain how each graph would change in response to a stimulus of much greater intensity and whyarrow_forwardAction potential frequency in phasic receptors with a prolonged stimulus..... action potential frequency in tonic receptors with a prolonged stimulus. greater than less than equal toarrow_forwardWhat characteristic of the basilar membrane is important for the function of the mechanically regulated gated K+ channelsof the hair cells? How do you think this characteristic changes as a person ages?arrow_forward
- Receptor cells that are neurons with sensory dendrites are faster than receptor cells that are separate from neurons. Why is that, and why might that be important in, for example, the sense of touch versus vision?arrow_forwardGive two examples of pain excitatory and inhibitory neurotransmitters.arrow_forwardWhat are the two types or classes of auditory hair cells and explain how they are different in terms of efferent and afferent neural fiber signaling.arrow_forward
- Opening cation channels causes depolarization. The influx of which ion usually causes this? Which ions cause depolarization in hair cells? Why does K+ move into these cells, rather than out?arrow_forwardBased on the same attached figure as above (Figure 10.9 in your textbook), what kind of channel permits K+ to pass through the apical-end membrane in hair cells of the ear? (A) Spiral ganglion Tectorial membrane Scala vestibuli Inner hair cells -45 mV Scala tympani Outer hair cells Scala media Organ of Corti Perilymph Low K+ 0mV Endolymph High K+ +80 mV (B) Stria vascularis Basilar membrane Ca²+ Afferent. nerve Depolarization O Nucleus wwww. 00 -Depolarization. Vesicles -Transmitter To brain C₂24arrow_forwardDescribe the flow of generation of receptor potential when sensory receptors detected stimuli.arrow_forward
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