1. Activation of Olfactory Receptors: odorants are dissolved in mucus surrounding olfactory neurons cilia. Odorant-binding proteins transport odorants through mucus to receptors on the cilia of the olfactory neuron. Binding of an odorant to the receptor activates a that triggers an enzyme, adenylate cyclase, to convert ATP into (CAMP). CAMP opens ion channels that allow sodium and calcium ions to enter the cell, which cause depolarization and the generation of an action potential if threshold is reached. Once action potential is generated, transduction has occurred. 2. The Olfactory Pathway neural signals carrying olfactory information travel to various regions of the brain for detection and odor identification. The olfactory tract is the only sensory pathway that bypasses the What is the primary olfactory cortex responsible for? The amygdala, hippocampus, hypothalamus, and components of the limbic system receive information from the primary olfactory cortex, which evokes emotional and visceral responses to odors. atomy and Physiology of Taste A. The gustatory sense (taste) involves chemoreceptors that are stimulated by various chemicals. Taste begins with stimulation of specialized receptor cells called which are small clusters of receptor cells and supporting cells scattered about the tongue and other surfaces of the oral cavity. B. Structures of Gustation: Taste Buds. The tongue is covered with rounded projections called papillae, which can be further classified into four classes based upon shape: (circumvallate) papillae, papillae, papillae, and papillae. Taste buds are usually located on the lateral surfaces of papillae and contain the following three cell types: (taste) cells, cells, and_ cells.
1. Activation of Olfactory Receptors: odorants are dissolved in mucus surrounding olfactory neurons cilia. Odorant-binding proteins transport odorants through mucus to receptors on the cilia of the olfactory neuron. Binding of an odorant to the receptor activates a that triggers an enzyme, adenylate cyclase, to convert ATP into (CAMP). CAMP opens ion channels that allow sodium and calcium ions to enter the cell, which cause depolarization and the generation of an action potential if threshold is reached. Once action potential is generated, transduction has occurred. 2. The Olfactory Pathway neural signals carrying olfactory information travel to various regions of the brain for detection and odor identification. The olfactory tract is the only sensory pathway that bypasses the What is the primary olfactory cortex responsible for? The amygdala, hippocampus, hypothalamus, and components of the limbic system receive information from the primary olfactory cortex, which evokes emotional and visceral responses to odors. atomy and Physiology of Taste A. The gustatory sense (taste) involves chemoreceptors that are stimulated by various chemicals. Taste begins with stimulation of specialized receptor cells called which are small clusters of receptor cells and supporting cells scattered about the tongue and other surfaces of the oral cavity. B. Structures of Gustation: Taste Buds. The tongue is covered with rounded projections called papillae, which can be further classified into four classes based upon shape: (circumvallate) papillae, papillae, papillae, and papillae. Taste buds are usually located on the lateral surfaces of papillae and contain the following three cell types: (taste) cells, cells, and_ cells.
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter41: Sensory Systems
Section: Chapter Questions
Problem 5TYK
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Transcribed Image Text:1. Activation of Olfactory Receptors: odorants are dissolved in mucus
surrounding olfactory neurons cilia. Odorant-binding proteins transport
odorants through mucus to receptors on the cilia of the olfactory neuron.
Binding of an odorant to the receptor activates a
that
triggers an enzyme, adenylate cyclase, to convert ATP into
(CAMP). CAMP opens ion channels that allow sodium and
calcium ions to enter the cell, which cause depolarization and the generation
of an action potential if threshold is reached. Once action potential is
generated, transduction has occurred.
2. The Olfactory Pathway neural signals carrying olfactory information travel
to various regions of the brain for detection and odor identification. The
olfactory tract is the only sensory pathway that bypasses the
What is the primary olfactory cortex responsible for?
The amygdala, hippocampus, hypothalamus, and components of the limbic
system receive information from the primary olfactory cortex, which evokes
emotional and visceral responses to odors.
Anatomy and Physiology of Taste
A. The gustatory sense (taste) involves chemoreceptors that are stimulated by
various chemicals. Taste begins with stimulation of specialized receptor cells
called
which are small clusters of receptor cells and
supporting cells scattered about the tongue and other surfaces of the oral cavity.
B. Structures of Gustation: Taste Buds. The tongue is covered with rounded
projections called papillae, which can be further classified into four classes based
upon shape:
(circumvallate) papillae,
papillae,
papillae, and
papillae. Taste buds are
usually located on the lateral surfaces of papillae and contain the following three
cell types:
(taste) cells,
cells, and
cells.
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