16 Questions
Which part of the nervous system functions to link the CNS with the various parts of the body?
Peripheral Nervous System (PNS)
What are the major organs for processing sensory input and initiating responses?
Central Nervous System (CNS)
Which division of the PNS conducts action potentials from the sensory receptors to the CNS?
Sensory Division or Afferent Division
What is the function of Sensory Neurons?
Transmitting action potentials from the periphery to the CNS
Which part of the nervous system is responsible for controlling muscles and glands?
Peripheral Nervous System (PNS)
Where are sensory receptors located?
Throughout the body
Which type of cells make up the nervous system?
Neurons and glial cells
What is the main function of motor neurons?
Transmitting action potentials from the CNS to effector organs
What is the function of dendrites in a neuron?
Receive information from other neurons or sensory receptors
What is the role of glial cells in the nervous system?
Primarily supportive cells of the CNS and PNS
What is the function of myelin sheaths around axons?
Increase the speed and efficiency of action potential generation along the axon
What occurs at the nodes of Ranvier?
Ion movement can occur at the nodes of Ranvier
What is an action potential?
An explosion of electrical activity that is created by a neuron sending information down an axon
Which part of a neuron contains a single nucleus and provides energy to drive activities?
"Cell body" or soma
Which type of cells are far more numerous than neurons in the nervous system?
"Glial cells" or neuroglia
What is one major difference between myelinated and unmyelinated axons?
"Speed and efficiency of action potential generation"
Test your knowledge on the major functions of the human nervous system, including receiving sensory input, integrating information, controlling muscles and glands, and maintaining homeostasis.
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