18 Questions
What is the basic unit of the nervous system?
Neurons
Which part of a neuron carries impulses away from the cell body?
Axons
What is the chemical released at the end of an axon to stimulate the nerve impulse in the next dendrite?
Neurotransmitter
Which type of neurons carry messages from the legs and hands towards the central nervous system?
Sensory neurons
In which part of the nervous system does the autonomic nervous system (ANS) belong?
Peripheral Nervous System (PNS)
What is the function of interneurons (relay neurons) in the nervous system?
Connect sensory neurons to motor neurons
Which part of the peripheral nervous system is responsible for carrying motor and sensory signals between the spinal cord and the body?
Spinal nerves
When the body is in a dynamic role or stress, which subdivision of the autonomic nervous system is typically activated?
Sympathetic
Which subdivision of the autonomic nervous system is associated with maintaining body functions and restoring the body to a normal or relaxed state?
Parasympathetic
What type of control is associated with the somatic nervous system?
Voluntary
Which part of the nervous system connects the central nervous system to organs and limbs?
Cranial nerves
What directly sends commands to motor neurons controlling muscles in your arm and hand?
Spinal cord
What is the main function of the nervous system?
Connecting body parts and transmitting signals
Which part of the nervous system is responsible for regulating the body's responses to internal and external stimuli?
Autonomic nervous system
How does the central nervous system differ from the peripheral nervous system?
Central nervous system includes the brain and spinal cord, while the peripheral nervous system includes nerves outside of the brain and spinal cord.
During the 'Mixed Messages' activity, if you are asked to identify the colors of words instead of reading them, which part of your brain is most likely working harder?
Occipital lobe
Which statement accurately describes one of the functions of the peripheral nervous system?
The peripheral nervous system controls voluntary movements like walking.
What is the role of the autonomic nervous system in maintaining homeostasis?
Adjusting heart rate and digestion based on internal conditions
Test your knowledge on the components of the nervous system including CNS, PNS, ANS, spinal cord, cerebrum, cranial nerves, cerebellum, spinal nerves, brain stem, sympathetic and parasympathetic systems. Learn about neurons, nerve impulses, dendrites, and more in Lesson 3.1.
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