Nervous System 1
What does the central nervous system consist of?
the brain and spinal cord
What does the peripheral nervous system consist of?
Nerves that branch off of the CNS/Everything outside of the CNS
What are neurons?
nerve cells
What are the 3 main parts of the nervous system?
brain, spinal cord, and neurons
What is the basic unit of the nervous system?
neuron
Name 2 things the cerebrum is responsible for?
voluntary muscular activity, vision, speech, taste, hearing, thought, and memory
What part of the PNS controls the glands and the muscles of the internal organs?
the autonomic nervous system
A sensory neuron picks up a __________ and converts it to a ______ __________.
stimulus/nerve impulse
What are the 3 main functions of the nervous system?
Receive information, respond to information, and maintain homeostasis.
The brain is in which part of the nervous system?
central
Where is the cerebellum located?
at the back of the brain, between the cerebrum and brain stem
What are the 2 systems within the PNS
Autonomic and somatic
What type of neuron sends an impulse to a muscle or gland to respond?
Motor
True or False: The nervous system is divided into 2 different parts?
true
What is the main function of the brain stem?
connects the brain to the spinal cord
What does the brain stem regulate?
Involuntary actions
What part of the neuron receives information?
dendrites
What part of a neuron carries nerve impulses to the cell body?
Dendrite
What part of the PNS controls involuntary actions?
Autonomic
What protects the spinal cord from being damaged?
vertebrae
What carries messages between the brain and other parts of the body?
the spinal cord
What does an axon do?
carries nerve impulses away from the cell body
The place where a neuron transfers and impulse to another struction is called a __________
synapse
What functions/actions does the somatic nervous system control?
Voluntary actions
How do electrical signals cross the gap in the synapse?
They change to chemical form.