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Aug 30, 2010 . The entire set of cell changes induced by receptor activation is called a signal . The pathway meditating a reflex is called a reflex arc.A receptor detects the stimulus and produces a signal that is relayed through a .

Input component of the PNS consists of nerve cells called (sensory or afferent) neurons. . Activation of a sensory receptor triggers impulses along the afferent fibers . Exteroceptors - sensitive to stimuli arising outside the body. .

Sensory Receptors. §Structures specialized to respond to stimuli. §Activation of sensory receptors results in depolarizations that trigger impulses to . .. §All ventral rami except T2-T12 form interlacing nerve networks called plexuses .

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Spicy foods contain a chemical called capsaicin; the spicier the food, the more capsaicin it . Activation of this receptor on neurons (nerve cells) causes . that it functions as a transducer of painful thermal stimuli in vivo. .

sensory neurons running from stimulus receptors that inform the CNS of the stimuli . from the CNS to the muscles and glands - called effectors - that take action. . Activation of the sympathetic system is quite general because .

Meaning of receptor activation. Pronunciation of receptor activation. . exteroceptor - any receptor that responds to stimuli outside the body .

The essential step, resulting directly or indirectly from the activation of . This phenomenon, called adaptation, leads receptors to be more sensitive to . the stimulus. initiated from the class of sensory receptors called muscle .

In response to this stimulus postganglionic neurons - with two important .

Feb 15, 2011 . Our goal is to understand, at the molecular level, how the receptor functions as a versatile noxious detector in response to various stimuli .

Cells and Genetics question: Activation of the receptors by stimuli is .

Ok..now we know the "stimuli" that may cause pain. How do these stimuli activate . These receptors are called "nociceptors" and are free nerve endings connected to . Activation of endogenous opiate system (endorphins); Activation of .

The activation of sensory receptors by external physical stimulus energy . Difference Threshold - Also called “just noticeable difference” or JND .

The mentioned above stimuli that induce endocrine glands to synthesize and . 2 ) The other mechanism involves so-called nuclear receptors and direct gene . Activation of the G protein, as GTP displaces GDP, which then activates the .

Various environmental stimuli, in addition to many of the regular signal . .. the receptors cling together in a complex called an aporeceptor complex, . . NO works mainly through activation of its target receptor, the enzyme soluble .

The depolarization within the sensory dendrite itself (due to the stimulus) is called a receptor potential. Remember, the depolarization due to a synapse .

Jan 28, 2010 . C. adaptation .

Jan 2, 2010 . All receptors will adapt to stimulus, i.e. the receptor's potential . The slowly adapting receptors experience tonic (continued) activation while the . system to respond and are called the first order neurons. .

During the action of a stimulus, a change occurs in the variation of the .

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Jun 29, 2010 . Activation of sensory receptors results in ______ that trigger . The conscious interpretation of those stimuli is called, Perception .

The second ADP receptor required for aggregation (variously called . The cloned capsaicin receptor integrates multiple pain-producing stimuli. . Direct activation of capsaicin receptors by products of lipoxygenases: endogenou .

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May 16, 2005 . A receptor detects the stimulus and produces a signal that is . . as a result of receptor activation and enters the cytoplasm is called the .

The receptors in body tissues which detect injury are called nociceptors. . Activation of these receptors results in nerve impulses which travel along the . appear to sensitize pain receptors to mechanical and chemical stimuli. .

Activation of the receptors by stimuli is called: sensation. After receptor cells are stimulated, information is transmitted to the brain, which interprets .

sensation Activation of receptors by stimuli in the environment. . .. popularly called addiction and often characterized by drug tolerance and withdrawal .

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G-Protein coupled receptors called so because its ability to bind with trimeric . GPCRs that act as receptors for stimuli that have not yet been . . Following activation of adenylate cyclase, the resulting cAMP acts as a second .

Apr 9, 2009 . How continued stimulus causes receptors in the body to become less . The stimulation or activation of these receptors is called sensation. .

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The type of stimulus is called the modality. Table 9.1. Receptor potentials: graded . Activation of any of the associated neurons may trigger an action .

Activation of the specific protein receptors in the cell membrane is followed by . The sensory stimulus is thus translated into a train of impulses whose . This phenomenon, called adaptation, leads receptors to be more sensitive to .

Jan 7, 2002 . Whereas classical ionotropic receptors affect postsynaptic membrane . neuron which bears the appropriate type of receptor, called an NMDA receptor. . Extrinsic stimuli that cause activation of the developing pathways .

a feedforward involves future stimuli while feedback involves past stimuli. . . The process of target cell response to receptor activation is called: .

An initial response of a receptor cell to a stimulus, consisting of a change in . Catabolite receptor protein, also called CAP or catabolite activator protein . . Apoptosis is often induced by activation of death receptors (DR) .

Jul 29, 2010 . It should be noted that many stimuli for cell death, including elevated calcium levels and, in some cases, activation of TNF receptors are .

Body structures that respond to stimuli (plural of stimulus) are called . Activation of the receptor usually results in a nerve impulse in those nerves. .

(iv) Activation stimulates the B cells to grow and rapidly multiply to produce a clone of . The organ which receives the stimulus is called receptor. .

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