Neurobiology: Autonomic Nervous System

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Questions and Answers

What is the Autonomic Nervous System responsible for controlling?

  • Voluntary muscle contractions
  • Cognitive functions such as thinking and memory
  • Sensory information from the environment
  • Involuntary bodily functions (correct)

Which type of synapse is shown in Figure 1.D?

  • GABAergic NMJ
  • Cholinergic neuromuscular junction (correct)
  • Dopaminergic NMJ
  • Neuron-neuron synapse

What is the function of the presynaptic terminal?

  • Transmitting signals to other neurons (correct)
  • Regulating muscle contractions
  • Receiving signals from other neurons
  • Storing neurotransmitters

What is the main difference between the images in Figure 1.A and Figure 1.B?

<p>The method of fixation used (C)</p> Signup and view all the answers

What is the function of mitochondria in neurons?

<p>Producing ATP for the neuron (B)</p> Signup and view all the answers

What is the function of microtubules in neurons?

<p>Maintaining neuronal structure (A)</p> Signup and view all the answers

What is the efferent division of the Peripheral nervous system responsible for?

<p>Controlling involuntary functions (A)</p> Signup and view all the answers

What is the Autonomic Nervous System a part of?

<p>Peripheral nervous system (B)</p> Signup and view all the answers

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Study Notes

Cell Functions of Neurons

  • Resting state is a key function of neurons
  • Electron microscope images of worm synapses show various structures, including:
    • Ventral nerve cord fixed by classical method using osmium and glutaraldehyde
    • Ventral nerve cord fixed by high-pressure freezing
    • Synapses with different components (e.g., SV, MT, presynaptic density, postsynaptic density-like structures)

Autonomic Nervous System

  • The Autonomic Nervous System is a part of the Peripheral nervous system
  • It is a subdivision of the efferent division
  • It controls involuntary bodily functions, including:
    • Cardiac function
    • Body temperature
    • Smooth muscle function
    • Gland function
    • Arterial blood pressure

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