Nervous System Function and Components
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Questions and Answers

What is the main function of the central nervous system (CNS)?

  • Manages functions of the gastrointestinal tract
  • Controls involuntary actions, like heart rate and digestion
  • Processes sensory information (correct)
  • Controls voluntary movements

Which part of the nervous system is responsible for controlling most functions of the body and mind?

  • Brain (correct)
  • Somatic Nervous System
  • Enteric Nervous System
  • Peripheral Nervous System

What is the primary function of the autonomic nervous system (ANS)?

  • Processes sensory information
  • Controls involuntary actions, like heart rate and digestion (correct)
  • Manages functions of the gastrointestinal tract
  • Controls voluntary movements

Which cells in the nervous system conduct electrical impulses and communicate through synapses?

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

What is the recommended surface interval for a repetitive no-compression dive?

<p>24 hours (A)</p> Signup and view all the answers

What is the main cure for decompression sickness?

<p>Recompression – descend/recompression chamber (A)</p> Signup and view all the answers

Which condition can have symptoms similar to hypoxia and is characterized by abnormal loss of carbon dioxide in the blood?

<p>Hyperventilation (D)</p> Signup and view all the answers

What are the symptoms of hypoxia?

<p>Headache, breathlessness, and drowsiness (A)</p> Signup and view all the answers

Which type of hypoxia is most common in aviation?

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

What is the most common cause of Anaemic/Hypemic Hypoxia in aviation?

<p>CO poisoning (D)</p> Signup and view all the answers

At what altitude does mild hypoxia typically occur?

<p>Between 5000-10000ft (A)</p> Signup and view all the answers

What is the general recommended surface interval for a repetitive no-compression dive?

<p>12 hours (A)</p> Signup and view all the answers

Which condition is characterized by the abnormal loss of carbon dioxide in the blood and can present symptoms similar to hypoxia?

<p>Hyperventilation (A)</p> Signup and view all the answers

At what altitude is decompression sickness unlikely to occur but has been known to occur as low as 8,000ft?

<p>18,000ft (C)</p> Signup and view all the answers

What is the most common cause of Anaemic/Hypemic Hypoxia in aviation?

<p>CO poisoning (A)</p> Signup and view all the answers

What are the symptoms of mild Hypoxia?

<p>Impaired working memory under more demanding conditions (C)</p> Signup and view all the answers

Which type of Hypoxia occurs due to impaired circulation?

<p>Stagnant/Hypokinetic Hypoxia (C)</p> Signup and view all the answers

What is the effect of hypoxia on the fingertips and lips?

<p>Visible bluish discoloration (B)</p> Signup and view all the answers
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