what is the central nervous system made up of?
what comes out of the body that are finger like branches ?
what do the axon do
their are 100 billion nerve cells in bundles called?
the cell body looks like a blob with an eye called?
what system monitors function and movement?
this system controls movement of the heart, the stomach, intestine, and the glands what is this system called?
what system comunicates with the rest of the systems through electrical signals?
contains both sensory and motor nerves what is this system called?
when you are under stress what nervous system is affected?
high in the back fo your _______ a patch of tissue grows hair like fibers what is the sense?
what does sight do?
your eyes perceive light wave, but your ______ perceive and interprets a different type of stimulas called?
your ______ is covered with small sensory structures called _________?
the sense of ________ depends on tiny sensory receptors in the skin
how many nerve cells does an average adult contain in the brain?
what are the 100 billion nerve cells called?
what does the brain directly control?
name two voluntary behaviors
name one of the involuntary responses the body also controls
name one
the spinal cord is ________ long
the spinal cord weighs ________ grams
what is the spinal cord protected by and supported by?
the spinal cord has ________ layers of tube with an outer layer of nerve fibers wrpped in tissue
connected to the spinal cord are how many pairs of nerves?
the brain and the spinal cord
Dendrites
Fact:
a single nerve cell can have 50,000 dendrite branches
conducts electrical impalses away from the nerons cell body
the voluntary nervous system
the Autonomic Nervous System
the Central Nervous System
the Peripheral Nervous System
the autonomic nervous system
captures light and help turn it into an image, prossessed by the brain
nearly 100 billion nerve cells
- heartbeat
- blood pressure
- fluid balance
- posture
the vertebal colum,
made of small bones called vertebrae
2 the spinal cord is douple-layered