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Nervous System

Nerve impulses and their coordination and autonomic nervous system

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which is the most excitable part of a neuron?

  1. Cyton
  2. Axon hillock
  3. Initial segment of axon
  4. Axon
Question 2 Multiple Choice (Single Answer)

Which of the following is a short-lasting event in which the electric membrane potential of the nerve cells rapidly rises and falls following a consistent path?

  1. Resting potential
  2. Action potential
  3. Reverse potential
  4. Threshold potential
Question 3 Multiple Choice (Single Answer)

______ regulates the autonomic nervous system within the brain.

  1. Hippocampus
  2. Hypothalamus
  3. Thalamus
  4. Medulla
Question 4 Multiple Choice (Single Answer)

Which type of nerve secretes acetylcholine?

  1. Spinal nerve
  2. Cranial nerve
  3. Parasympathetic nerve
  4. Sympathetic nerve
Question 5 Multiple Choice (Single Answer)

Which sympathetic nerve supplies to stomach?

  1. Posterior vagal trunk
  2. Greater splanchnic nerve
  3. Right phrenic nerve
  4. Lumbar splanchnic nerve
Question 6 Multiple Choice (Single Answer)

Which nervous system is involved in the process of facilitating accommodation and allowing closer vision?

  1. Sympathetic nervous system
  2. Parasympathetic nervous system
  3. Somatic peripheral nervous system
  4. Central nervous system
Question 7 Multiple Choice (Single Answer)

What would happen if the brain is deprived of blood flow for 1-2 minutes?

  1. Unconsciousness
  2. Weakening of brain cells
  3. Permanent injury of nerves
  4. Nothing would happen
Question 8 Multiple Choice (Single Answer)

What is the fast movement of action potential from node to node called?

  1. Synaptic transmission
  2. Saltatory transmission
  3. Co-transmission
  4. Summation
Question 9 Multiple Choice (Single Answer)

Which of the following is an incorrect statement?

  1. Spinal cord is covered with meninges.
  2. The postanglionic neurons originate from the thoracolumbar region of the spinal cord.
  3. The space between axon and dendrite is called synaptic cleft.
  4. The nerve impulse obeys the all or none principle like muscles.
Question 10 Multiple Choice (Single Answer)

Nerve impulses are generated by

  1. Na+ K+ pump
  2. Na+ Cl- pump
  3. Ca++ Na+ pump
  4. Ca++ K+ pump
Question 11 Multiple Choice (Single Answer)

Which of the following correctly represents the path of flow of nerve impulse?

  1. Neuron - Cyton - Axon
  2. Axon - Cyton - Dendrites
  3. Cyton - Dendrites - Axon
  4. Axon - Dendrites - Cyton
Question 12 Multiple Choice (Single Answer)

What do we call the period for which a nerve does not transmit another impulse?

  1. Resting potential
  2. Repolarisation
  3. Refractory period
  4. Depolarisation
Question 13 Multiple Choice (Single Answer)

What is the critical level to which the membrane potential must be depolarised in order to initiate an action potential?

  1. Depolarisation
  2. Resting potential
  3. Threshold potential
  4. Refractory period
Question 14 Multiple Choice (Single Answer)

What do we call the difference in the distribution of electric charges outside and inside of plasma membrane of nerve?

  1. Action potential
  2. Resting potential
  3. Threshold potential
  4. Reverse potential
Question 15 Multiple Choice (Single Answer)

In which process does the neural cells' internal charge become positive?

  1. Repolarisation
  2. Depolarisation
  3. Nerve impulse
  4. Refractory period
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