15 Questions
What is the signaling device used by the nervous system to communicate with body cells?
Electrical impulses
Which of the following is NOT one of the functions of the nervous system?
Metabolic Regulation
What are the two subdivisions of the structural classification of the nervous system?
CNS and PNS
Which organs form the central nervous system (CNS)?
Brain and Spinal Cord
What do neurons use to transmit signals to other neurons or to target cells?
Nerve Impulses
What is the main function of the Peripheral Nervous System (PNS)?
To serve as communication lines linking all parts of the body by carrying impulses to and from the sensory receptors to the CNS and from the CNS to the appropriate glands or muscles
Which division of the functional classification scheme is concerned with conveying impulses to the central nervous system from sensory receptors?
Sensory division
What are the two types of sensory fibers in the sensory or afferent division?
Somatic sensory fibers and Visceral sensory fibers
Which subdivision of the motor or efferent division allows us to consciously control our skeletal muscles?
Somatic Nervous System
What is the main function of the autonomic nervous system (ANS)?
To regulate events that are automatic, or involuntary, such as the activity of smooth and cardiac muscles and glands
Which type of fibers deliver impulses from the skin, skeletal muscles, and joints?
Somatic sensory fibers
What type of nerves carry impulses to and from the spinal cord?
Spinal nerves
What are the two principal subdivisions in the functional classification scheme concerned with PNS structures?
Sensory division and Motor division
What does the motor or efferent division carry impulses from?
CNS to effector organs, the muscles and glands
What type of neurons are highly specialized to transmit messages (nerve impulses) from one part of the body to another?
Neurons or nerve cells
Test your knowledge on the definition, functions, classifications, neurons, neurotransmission, nerve impulses, PNS, and CNS of the nervous system. Understand how the nervous system serves as the body's master controlling and communicating system.
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