The Nervous System Principles of Health Science. What is the nervous system composed of? Brain Spinal Cord Nerves Sense Organs Receptors.

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Presentation transcript:

The Nervous System Principles of Health Science

What is the nervous system composed of? Brain Spinal Cord Nerves Sense Organs Receptors

Fun facts first!

What’s it made of? 77% Water 10-12% Lipids 8% Protein 1% Carbs 2% Soluble Organics 1% Inorganic Salt

There are… 100 Billion Neurons in the Human Brain

About The same amount… Of Stars in the Sky

The left hemisphere has… 186 million more neurons than the right hemisphere.

ml of blood flow… through the brain every minute. This is about 3 full soda cans!

The brain can stay alive… 4-6 minutes without oxygen!

The slowest neurons in the brain… travel at 260 MPH. As “slow” as today’s fastest car! (Clocked at 253 MPH)

More electrical impulses… Are generated in one day by a single human brain than all the telephones in the world.

The human brain has… 70,000 thoughts in an average day.

FUNCTIONS OF THE BRAIN (or noodle)

Creativity Imagination Artists Dreamers Visual Spatial Logical Mathematical Linguistic Speech Leftvs.right

How does the communicate with the rest of the body? How does the brain communicate with the rest of the body?

neurons

Sensory Neurons Specialized to detect senses Example: pressure or heat

Motor neurons Impulses that signal muscle contractions… motion.

interneurons Connect with other neurons.

CFU Please put your notes away and your thinking cap on.

Rules: Use your motor neurons (raise your hand) if you think you know the answer! If you get it right then I will feed your sensory organs.

Part of the nervous system that starts with a “B” #1

Name that neuron: (The connection of neurons) #2

Two Parts of the nervous system that start with an “s” #3

Name that Neuron: (Senses heat) #4

Part of the nervous system that starts with an “N” #5

Part of the nervous system that starts with an “R” #6

Name that Neuron: #7

Name that Neuron: #8

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