nervous system

break down food

pump blood around the body

send food to the small intestines

give energy to the body

muscular

nervous

respiratory

arteries

veins

capillaries

Arteries

Veins

Capillaries

Nervous system

Cardiovascular system

Respiratory system

Muscular system

Most all Animals

invertebrates (no spine) have small nervous systems

Jelly Fish have no brain, thus no nervous system

Astronaut's motion sickness in space has nothing to do with the nervous system

Electrical engineers have created a microchip that can be implanted into the back of the eye for people who have trouble seeing

The brain helps us interpret all the signals from our nervous system.

Your brain has short and long term memories. 

Football helmets and automobile air bags are good ways to help save the brain from injury.

It takes one minute for the brain to sense a change

The brain shows levels of activity at all times, even during sleep.

Humans have the largest brain

There are about 85 billon neurons (nerve cells) in the human brain

Spinal cord

Nerves

Muscles

Brain

Transmit messages

Receive messages and they send it to the brain

They don't do anything

Somatic nervous system

Central nervous system

Autonomic Nervous System

Peripheral nervous system

spinal cord

receptors

effectors

brain

skeletal

nervous

muscular

heart, brain, kidneys

brain, spinal cord, nerves

lungs, liver, stomach

eyes, pancreas, veins

Pumps blood from your heart to your body

Breaks up food

Carries messages back and forth between your brand and the rest of your body

secretes hormones

True

False

nerves

brain

spinal cord

protects the lungs

protects the brain and spinal cord

protects the heart

protects the esophagus and stomach