Nervous System and Brain Functions

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Questions and Answers

What are the two systems of the efferent division of the nervous system?

  • Sympathetic nervous system and parasympathetic nervous system
  • Somatic nervous system and parasympathetic nervous system
  • Somatic nervous system and autonomic nervous system (correct)
  • Autonomic nervous system and sympathetic nervous system

Which part of the brain is responsible for visual processing and interpretation?

  • Temporal lobe
  • Frontal cortex
  • Cerebellum
  • Occipital lobe (correct)

Where are pseudo-unipolar neurons (sensory neurons) found in the body?

  • Throughout the central nervous system
  • Connected to ear functions
  • Spinal and cranial nerve ganglia (correct)
  • In the special senses near the cranium

Name a type of neuroglia and its function.

<p>Astrocytes - provide structural support for neurons and regulate the extracellular environment (C)</p> Signup and view all the answers

Which type of glial cell forms myelin sheath in the central nervous system?

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

What is the main function of the midbrain?

<p>Controlling eyesight, eye movement, and body movement (A)</p> Signup and view all the answers

Which lobe of the cerebrum is responsible for processing auditory information?

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

What is the main difference between grey matter and white matter in the brain?

<p>Grey matter is responsible for information processing while white matter forms connections between brain regions (C)</p> Signup and view all the answers

Which of the following cells is responsible for producing cerebral spinal fluid and acting as a blood-brain barrier?

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

What happens at the synapse when an action potential reaches the axon terminal of the presynaptic neuron?

<p>Neurotransmitters are released into the synaptic cleft (C)</p> Signup and view all the answers

What is the primary function of acetylcholine in the nervous system?

<p>Transmitting impulses in the somatic nervous system (B)</p> Signup and view all the answers

What is the main role of dopamine in the brain?

<p>Regulating mood and movement coordination (D)</p> Signup and view all the answers

What is the primary function of the meninges?

<p>Offering physical support and acting as a cushion against mechanical injuries (A)</p> Signup and view all the answers

What is the function of myelin in the nervous system?

<p>To enhance the speed of nerve impulse conduction (A)</p> Signup and view all the answers

How do the nodes of Ranvier fit into the function of myelin?

<p>They allow for regeneration of the action potential and maintain the strength of the nerve impulse (A)</p> Signup and view all the answers

What is the main difference between the autonomic nervous system and the somatomotor nervous system?

<p>The autonomic nervous system is responsible for involuntary bodily functions, while the somatomotor nervous system controls voluntary muscle movements (B)</p> Signup and view all the answers

Name two neurotransmitters used by the nervous system to transmit an impulse across a synapse.

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

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