Fundamentals of Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134396026
Author: Frederic H. Martini, Judi L. Nath, Edwin F. Bartholomew
Publisher: PEARSON
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Question
Chapter 15, Problem 3CP
Summary Introduction
To determine:
The receptor which provides more precise sensory information, where receptor A has a circular receptive field on the skin surface with diameter 2.5 cm and receptor B has a circular receptive field 7.0 cm in diameter.
Concept introduction:
The particular region of the sensory space is the receptive field of an individual sensory neuron. The receptor B has more receptive field of 7.0 cm as compared to receptor A, which is having less circular receptive field of 2.5 cm.
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Receptor A has a circular receptive field on the skin with a diameter of 2.5 cm. Receptor B has a circular receptive field 7.0 cm in diameter. Which receptor provides more precise sensory information?
What does your map of cutaneous sensations tell you about the distribution of sensory receptors in the skin?
Fill out the information indicated for tactile receptors in the table below:
Name
Structure
Location
Function.
(encapsulated or
unencapsulated?)
Tactile disc
Tactile
corpuscle
Free nerve
endings
End bulb
Bulbous
corpuscle
Root hair
plexus
Lamellated
corpuscle
Chapter 15 Solutions
Fundamentals of Anatomy & Physiology (11th Edition)
Ch. 15 - What do we call the bodys specialized cells that...Ch. 15 - Prob. 2CPCh. 15 - Prob. 3CPCh. 15 - Define adaptation.Ch. 15 - List the major types of general sensory receptors,...Ch. 15 - Identify the three classes of mechanoreceptors.Ch. 15 - What would happen to you if the information from...Ch. 15 - Prob. 8CPCh. 15 - Which spinal tract carries action potentials...Ch. 15 - Prob. 10CP
Ch. 15 - Prob. 11CPCh. 15 - Prob. 12CPCh. 15 - Prob. 13CPCh. 15 - Prob. 1RQCh. 15 - __________ receptors are normally inactive, but...Ch. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQCh. 15 - Prob. 6RQCh. 15 - Prob. 7RQCh. 15 - What are the three major somatic sensory pathways...Ch. 15 - Prob. 9RQCh. 15 - Which three motor tracts make up the medial...Ch. 15 - Prob. 11RQCh. 15 - Prob. 12RQCh. 15 - What three steps are necessary for transduction to...Ch. 15 - Differentiate between a tonic receptor and a...Ch. 15 - What is a motor homunculus? How does it differ...Ch. 15 - Prob. 16RQCh. 15 - Prob. 17RQCh. 15 - Prob. 18RQCh. 15 - By which structures and in which pan of the brain...Ch. 15 - Prob. 20RQCh. 15 - Prob. 21RQCh. 15 - Prob. 22RQCh. 15 - Prob. 23RQCh. 15 - Prob. 1CCCh. 15 - Prob. 2CC
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- Help mearrow_forwardA mixture of two of the compounds illustrated in Figure 33.6 is applied to a section of olfactory epithelium. Only receptors 3, 5, 9, 12, and 13 are activated, according to Figure 33.7. Identify the likely compounds in the mixture.arrow_forwardWhat does a receptor detect?arrow_forward
- Explain the difference between slow adapting and fast adapting receptors for touch. Give an example of a situation where each type of receptor would be activated. Paragraph BIU A 0⁰ + v ...arrow_forwardBoth Tactile Corpuscles and Lamellated Corpuscles are encapsulated and detect different amounts of pressure. Explain why the capsule surrounding these receptors is part of their modality.arrow_forwardYou want to record membrane potential changes in axons of neurons that process different types somatosensory information. Which sequence ranks the speed of maximum firing rate from slowest to fastest that you predict you will record a) muscle spindle < cutaneous mechanoreceptor < pain and temperature b) pain and temperature < muscle spindle < cutaneous mechanoreceptor c) cutaneous mechanoreceptor < pain and temperature < muscle spindle d) cutaneous mechanoreceptor < muscle spindle < pain and temperature e) muscle spindle < pain and temperature < cutaneous mechanoreceptor f) pain and temperature < cutaneous mechanoreceptor < muscle spindlearrow_forward
- What are the receptor cells in the eye that are most sensitive to light and that give an image in black / white (grayscale)?arrow_forwardPrecise localization of a somatosensory stimulus is improved by: Increasing frequency coding Increasing population coding Decreasing receptive field size O Lateral inhibition Increasing receptive field sizearrow_forwardA scientist has dissected out a small section of the retina and is able to directly record the action potential firing rate in a single ganglion cell. Assume there is a on-center off-surround bipolar cell connected to an on-center off-surround ganglion cell. When applying ‘Stimulus 1’ the scientist records a moderate action potential rate. When applying ‘Stimulus 2’ the rate of action potentials increases substantially. In the context of this experiment no illumination is an option as a 'Stimulus'. ‘Stimulus 2’ would result in what response in the bipolar cell (the one connected to the ganglion cell the scientist is measuring)? A. A large depolarization of the bipolar cell membrane B. The bipolar cell membrane would remain at the resting membrane potential C. A large hyperpolarization of the bipolar cell membrane D. A small hyperpolarization of the bipolar cell membrane E. A small depolarization of the bipolar cell membranearrow_forward
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