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Nervous and Endocrine System: Comparison and Contrast
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Nervous and Endocrine System: Comparison and Contrast

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Questions and Answers

What is the primary difference in the speed of action between the nervous and endocrine systems?

  • The endocrine system is faster because hormones are carried by the bloodstream
  • The nervous system responds rapidly, while the endocrine system responds slowly (correct)
  • The nervous system is slower due to the distance signals need to travel
  • The speed of action is the same in both systems
  • What is the primary mode of transmission for hormonal messages in the endocrine system?

  • Mechanical signals through the skeletal system
  • Chemical transportation through the bloodstream (correct)
  • Electrochemical signals along nerve fibres
  • Electrical impulses along muscles
  • How do nervous impulses differ from hormonal responses in terms of duration?

  • Nervous impulses have a longer duration, while hormonal responses are shorter
  • Hormonal responses have a longer duration, while nervous impulses are shorter (correct)
  • Both have the same duration of action
  • The duration of action is dependent on the stimulus
  • What is the primary difference in the specificity of messages between the nervous and endocrine systems?

    <p>Nervous impulses target specific sites, while hormonal responses are widespread</p> Signup and view all the answers

    How do the nervous and endocrine systems work together to maintain homeostasis?

    <p>They work together to coordinate and regulate the activities of other cells, tissues, organs, and systems</p> Signup and view all the answers

    What is the primary difference in the nature of messages between the nervous and endocrine systems?

    <p>Hormonal responses are chemical, while nervous impulses are electrochemical</p> Signup and view all the answers

    What is the primary function of the synaptic knob in the synapse?

    <p>To release the neurotransmitter into the synaptic cleft</p> Signup and view all the answers

    What is the effect of neurotoxin on the nervous system?

    <p>It prevents the binding of neurotransmitters to the postsynaptic neuron</p> Signup and view all the answers

    What is the primary function of exocrine glands?

    <p>To secrete substances into a duct that carries the secretion to the surface of the body</p> Signup and view all the answers

    What is the role of Ca2+ in the synaptic transmission process?

    <p>It triggers the fusion of vesicles with the presynaptic membrane</p> Signup and view all the answers

    What is the primary function of the endocrine system?

    <p>To secrete hormones into the extracellular fluid</p> Signup and view all the answers

    What is the effect of the neurotoxin on muscle contraction?

    <p>It prevents muscle contraction</p> Signup and view all the answers

    What is the primary function of hormone receptors in the endocrine system?

    <p>To combine with hormones to regulate cellular activity</p> Signup and view all the answers

    Which type of hormone is characterized by its slow action and lipid solubility?

    <p>Steroid hormone</p> Signup and view all the answers

    What is the primary difference between amine hormones and steroid hormones?

    <p>Their speed of action and solubility</p> Signup and view all the answers

    What is the role of the nervous system in maintaining homeostasis?

    <p>To transmit nerve impulses to and from various tissues</p> Signup and view all the answers

    What is the primary function of paracrine hormones?

    <p>To influence the activity of adjacent cells</p> Signup and view all the answers

    How do hormone-receptor complexes activate cellular responses in target cells?

    <p>By producing a secondary messenger to activate enzymes</p> Signup and view all the answers

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