Neurophysiology Quiz: Graded Potentials & Synaptic Transmission
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Questions and Answers

What is the function of the autonomic nervous system?

  • To control involuntary actions such as heart rate and digestion (correct)
  • To transmit signals from the brain to skeletal muscles
  • To integrate sensory information and respond to changes in the environment
  • To transmit signals from sensory receptors to the central nervous system

Which type of neuron is responsible for transmitting signals from the central nervous system to skeletal muscles?

  • Motor neuron (correct)
  • Sensory neuron
  • Interneuron
  • Cerebellar neuron

What is the role of spinal nerves in the somatic nervous system?

  • To control involuntary actions such as heart rate and digestion
  • To integrate sensory information from the periphery
  • To transmit signals from the brain to the spinal cord
  • To transmit signals from the spinal cord to skeletal muscles (correct)

What is a reflex arc?

<p>A pathway of neurons that allows for rapid responses to stimuli (D)</p> Signup and view all the answers

What is the role of neurotransmitters in the nervous system?

<p>To transmit signals from one neuron to another (A)</p> Signup and view all the answers

What is the function of the somatic nervous system?

<p>To transmit signals from the central nervous system to skeletal muscles (A)</p> Signup and view all the answers

What is the correct sequence of the components involved in a reflex arc?

<p>Receptor, integration center, motor neuron, effector (D)</p> Signup and view all the answers

What is the main difference between the somatic and autonomic nervous systems?

<p>The somatic nervous system is responsible for voluntary actions, while the autonomic nervous system is responsible for involuntary actions. (C)</p> Signup and view all the answers

Which type of fiber is associated with the Parasympathetic division of the autonomic nervous system?

<p>Cholinergic fibers (B)</p> Signup and view all the answers

What is the function of the spinal cord in the autonomic nervous system?

<p>To transmit signals from the brain to the periphery (B)</p> Signup and view all the answers

Which neurotransmitter is associated with Adrenergic fibers?

<p>Norepinephrine (C)</p> Signup and view all the answers

What is the term for the baseline level of activity in the autonomic nervous system?

<p>Tone (C)</p> Signup and view all the answers

What is the typical effect of an IPSP on the post-synaptic neuron?

<p>Hyperpolarization, moving the neuron further from threshold (B)</p> Signup and view all the answers

What is the main function of the autonomic nervous system?

<p>Regulation of involuntary actions, such as heart rate and digestion (B)</p> Signup and view all the answers

What is the role of neurotransmitters in chemical synaptic transmission?

<p>To transmit signals across the synapse (C)</p> Signup and view all the answers

What are biogenic amines categorized as?

<p>Neurotransmitters (B)</p> Signup and view all the answers

What is the typical effect of an EPSP on the post-synaptic neuron?

<p>Depolarization, bringing the neuron closer to threshold (B)</p> Signup and view all the answers

What is the function of the meninges of the brain?

<p>Protection of the brain from mechanical injury (B)</p> Signup and view all the answers

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