Chapter 31 Bio Test – Flashcards
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Which system coordinates the body's response to changes in its internal and external environment?
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Nervous system
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WHich system enables you to understand the words you read in a book?
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nervous system
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THe peripheral nervous system collects information about changes in internal body temperature using
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nerves and supporting cells
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what is the function of the central nervous system
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to process information and form a response
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Which divisions of the peripheral nervous system transmits impulses from sense organs to the central nervous system?
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sensory division
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Which division of the nervous system speeds up you heart rate?
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autonomic
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your alarm clock wakes you up and reminds you to get ready for school. which type of neuron receives the sound of the alarm?
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sensory neurons
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Refer to Figure 31-1 which structure carries impulses to the cell body?
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A. I
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Refer to Figure 31-1. Which structure carries impulses away from the cell body
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C. III
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What is the function of neurotransmitters
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to transmit nerve impulses across synapses
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When an impulse reaches the end of a neuron, it triggers the release of
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neurotransmitters
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The 31 major nerves that branch out from the spinal cord connecting it to the rest of the body are the
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central nerves
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It's 2:00 in the afternoon and you haven't eaten anything since breakfast. which part of your brain is telling you that you are hungry
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Hypothalamus
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For a person who writes with his or her left hand, the muscles involved in writing are controlled by
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the right hemisphere of the cerebrum
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when drugs produce a sensation of feeling and well being, what part of the brain is being stimulated?
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limbic system
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How does nicotine affect dopamine synapses
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it increases the release of dopamine
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When exposed to addictive drugs, how does the brain react to excessive dopamine level?
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it reduces the number of receptors for the neurotransmitter
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Which of the following choices best describes dopamine?
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a receptor molecule that is found on neurons
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Which of the following sensory receptors would lead you to squint in bright light?
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photoreceptors
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Sensory receptors that are sensitive to chemical information from the environment are found in the
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nose and taste buds
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The primary function of the sensory division of the peripheral nervous system is to transmit impulses
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From sense organs to the central nervous system
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which receptors respond to a scraped knee
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pain receptors
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which type of sensory receptor is responsible for smell and taste
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thermoreceptor
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when you move your fingers to type a text message you are using motor neurons of the
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somatic nervous system
