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Central and Peripheral Nervous System Overview

10 Questions

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Central and Peripheral Nervous System Overview

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Questions and Answers

What is the main function of the autonomic nervous system?

Controlling voluntary movements

Stimulating skeletal muscles

Regulating cardiac muscle and smooth muscle of internal organs (correct)

Promoting digestion

Which type of nerves carry impulses from sensory receptors in the skin, muscles, and joints to the central nervous system?

Cranial nerves

Motor nerves

Afferent (sensory) nerves (correct)

Efferent nerves

What are the two main branches of the autonomic nervous system?

Somatic and parasympathetic branches

Sympathetic and afferent branches

Parasympathetic and sympathetic branches (correct)

Sympathetic and motor branches

Which neurons send signals to other cells through thin fibers called axons?

Efferent neurons Signup and view all the answers

What happens when you touch a hot surface based on the reflex arc?

Efferent neurons trigger involuntary action of skeletal muscles Signup and view all the answers

What is the main function of sensory neurons?

Convert environmental stimuli into electrical signals Signup and view all the answers

What is the role of interneurons in the nervous system?

Send messages from one neuron to another Signup and view all the answers

What is the purpose of myelin in neurons?

Act as an insulator for the axon Signup and view all the answers

Which nervous system disease is characterized by a sudden weakness or paralysis in one side of the face?

Bell's Palsy Signup and view all the answers

What distinguishes epilepsy from having just one seizure?

It involves repeated seizures over time Signup and view all the answers