what is the nervous system
a communication network that controls all other systems of your body
what is the central nervous system (CNS) made out of
made up of your brain and your spiral cord
what does the central nervous system (CNS) do
the CNS receives information from all over the body and processes that info, then sends out messages telling the body to now respond
what is the Peripheral nervous system (PNS) made of
made up of the nerves
what does the Peripheral Nervous system do
carry messages to and from the CNS and other parts of your body.
what is the nervous system made out of
made up of trillions of nerve cells called neurons
what are neurons
specilazed cells that transmit electrical messages frome one part of your body to another at very high speed.
what are the electrcal messages called
nerve impulses
what are sensory neurons
they have specialized receptors, which are sensitive to stimuli such as heat or light.
what do sensory neurons do
They carry messages from cells in the sense organs (such as your eyes, ears, tongue and skin) to the brain and spinal cord
what are motor neurons
there what carry messages from the CNS to effector. than trnaslate the messages onto actions.
what are effectors
Effectors are muscles or glands that translate the messages into actions
what are inter neurons
transmit messages between other neurons
how do neurons comunicate
Neurons do not touch each other, there is a small gap called synapse between them.
what are dendrites
small threads arranged around the body of the neuron cell.
what do dendrites do
make contact with the other cells and receive information from them.
what is an axon
a long thin thread that carries information away from the cell.
what is the myelinshealth
the myelineshelth electrically insulates the neurons from each other and increases the spread of the nerve impulses.
what is the brains job
to control all body functions in the body and to interprets information from the outside world.
the cerebrum
controls your conscious thoughts and the intentional movement of every body part.
the cerebellum
is responsible for coordination and balance without it walking would be impossible.
what is the other word for the brain stem
medulla
endocrine system
a communication system that controls the internal enviroment of the body and helps maintain heostasis.
hormones
a chemical substance that acts as messages in the body.
