Nervous systems Flashcards
What is the central nervous system?
The brain and spinal cord process and coordinates responses to sensory stimuli
What is the peripheral nervous system?
Is everything outside of the central nervous system and contains muscles, organs and glands.
What is sensory stimuli?
An event or object that makes a person react to.
What is the spinal cord?
a cable of nerve fibers that is connected from the base of the brain to the the lower back enclosed by bone.
what is the autonomic nervous system?
A network of neurons that
carry information between
the CNS, and the organs
and glands, to ensure they
are regulated without
conscious awareness
What is the somatic nervous system?
A network of nerves that transfer information from the receptor site to the CNS and carries those messages to the muscles to make voluntary movements.
What is the sympathetic nervous system?
apart of the autonomic system that prepares our body for action.
What is the parasympathetic nervous system?
apart of the autonomic system that bring our body to homeostasis that calms us after action
What is a conscious response?
When the person is aware of what they are doing.
What is a unconscious response?
When a person is unawake or unaware that they are responding.
What is a neuron?
information messengers
What is a sensory neuron?
Transmits sensory info from the body to the brain
What is a motor neuron?
Transmits motor info from the brain to the body.
What is a interneuron?
Transmits info between the sensory and motor neuron
What is a neurotransmitter?
A chemical substance released by the terminal button of neuron, for neural transmission