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Nervous System Function and Neurons Quiz

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Nervous System Function and Neurons Quiz

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Questions and Answers

What is the function of dendrites in a neuron?

Contain the cell nucleus

Connect with other neurons

Insulate the nerve fiber

Transmit impulses to the axon (correct)

Which division of the nervous system controls involuntary responses such as heart rate?

Parasympathetic Nervous System

Sympathetic Nervous System (correct)

Central Nervous System

Peripheral Nervous System

What is the main role of the myelin sheath in a neuron?

Transmit impulses towards the cell body

Connect with other neurons

Contain the cell nucleus

Insulate the nerve fiber (correct)

Which structure forms intermittent gaps in the myelin sheath known as Nodes of Ranvier?

Axon Signup and view all the answers

What is the function of the cerebrospinal fluid in the nervous system?

Carry nutrients to the brain and spinal cord Signup and view all the answers

Which type of nerve fibers are composed of both afferent and efferent fibers?

Mixed nerves Signup and view all the answers

Which nervous system is responsible for 'FIGHT AND FLIGHT' response?

Sympathetic nervous system Signup and view all the answers

What is the main function of the glossopharyngeal nerve?

To provide sensory input to the tongue and throat Signup and view all the answers

What is the primary result of abnormal paroxysmal discharges in the cerebral cortex?

Altered sensation, behavior, or consciousness Signup and view all the answers

What do neurotransmitters primarily do?

Conduct impulses across synapses Signup and view all the answers

Which symptom is defined as 'a sensation that is usually a manifestation of vestibular dysfunction'?

Vertigo Signup and view all the answers

What is the main effect of peripheral blood vessels constricting in the body?

Cooling of the skin Signup and view all the answers