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Study questions 10-13 - Lecture 10 1 Sensory receptors a...

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Lecture 10 1. Sensory receptors: a. Propagatie an action potential via an axon of an afferent neuron b. Activate transcription in sensory cells via hormones c. when stimulated can cause opening or closing of ion channels. d. a and c. e. All of the above are true f. None of the above are true 2. A sensory unit is a: 3. Action potentials of relatively high frequency were recorded on an axon of an mechanoreceptor. What does it infer? a. Signal was summed from several receptive fields. b. Stimulus was applied to a large portion of receptor endings, but was weak. c. Stimulus was applied to a small number of receptor endings, but was strong. d. a OR c. e. b OR c. f. a OR b Correct answers: 1. d. , 2. b., 3. e. If the stimulus is weak, but covers all the receptor endings, it might cause the same response as a strong stimulus over a few receptor endings.:
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