Transcript Nervous Systems

Warm Up
1. Introduction to the Brain and Nervous
System by Jennifer Kenny
Answer both questions on the back in
complete sentences
Nervous Systems
The Nervous System
Function CARRIES MESSAGES FROM THE BRAIN TO PARTS
OF YOUR BODY TELLING THEM WHAT TO DO
MOVES INFORMATION THROUGHOUT YOUR
BODY
The nervous system also allows you to
react to a stimulus.
A stimulus is a change in the environment.
Example: A hot stove
Or… tripping over a rock
Importance
helps you move, feel, see, hear, taste, smell,
learn, form memories and emotion
Parts of the Nervous
System
1. Brain
2. Spinal Cord
3. Nerves
Parts of the Nervous
System
Brain = Computer
Spinal Cord = Central Cable
that carries messages to
and from computer
Nerves = Keyboard, Mouse
connect to spinal cord,
carry messages to every
part and also back to the
brain
Stop and Think
Why is the brain like a computer?
Kids Health Video
Remember AXIAL and
APPENDICULAR Skeleton?
Just like the Skeletal System, the Nervous
System is divided into 2 parts as well
Central / Autonomic
&
Peripheral
Central/Autonomic Nervous
System
* Controls all of the body’s activities
and movement.
* The Central/Autonomic
Nervous System is made of two
main organs.
1. The brain
2. The spinal cord
* Function: carries messages between
brain and nerves around body
•Importance:
connects the brain to the rest of the
nervous system, without it brain couldn’t
get messages to body
* The vertebrae are the many
bones that protect the nerves in
the spinal cord.
Stop and Think
Why is our spinal cord inside our vertebrae?
* The brain controls/manages
everything in the body.
•The brain is made of more than 10
billion nerves and weighs about 3
pounds
* The brain is divided into three
parts and is protected by the skull.
* The Brain has three main parts…
1. The Cerebrum
2. The Cerebellum
3. The Brain Stem
* Largest part of the brain. The top
half
The cerebrum controls 1.thinking & emotions
2. memory
3. speaking.
4. movement
* Below and to the back of the
cerebrum.
controls 1. balance.
2. posture.
* The Brain Stem connects the brain to
the spinal cord.
* The nerves in the brain stem control
all involuntary movements like your
heartbeat, breathing, and blood
pressure.
The Brain Diagram
Brain Independent
Practice / HW
• TextBook 107B, answer 1-3. Write Questions!
• The Nervous System
• The Brain
Exit
1. What role does the brain play in the nervous
system?
2. What do you think life would be like if your
spinal cord did not connect to the rest of
your body?
Quiz Return
19 – 18 = A
17 – 16 = B
15 = C
14 = D
Below 13 = F
Warm Up – put hw on
desk to be checked
Answer the questions below. 2 and 3 must be answered
in complete sentences
1.
The cerebrum controls
a.
Thinking
b. Speaking
c.
Movement
d. All of the above
2. What 2 organs make up the central nervous system?
3. Why is the vertebrae important?
2. What 2 organs make up the central nervous
system?
Brain
Spinal Cord
3. Why is the vertebrae important?
The vertebrae protects the spinal cord.
Goals
Central Nervous System
- what does that mean?
- What does it do?
- What parts are in it?
Brain > function and location of each part
Parts of Brain &
Functions
Cerebrum > thinking, emotion, memory, speaking,
movement *SENSES
- sight, taste, touch, hear, smell
Cerebellum > balance and posture
Brain Stem > all involuntary movements
- Heart beat, heart rate, breathing, blood pressure
Video
Brain =
http://www.brainpop.com/health/bodysystems
/brain/
Spinal Cord =
http://www.brainpop.com/health/bodysystems/s
pinalcord/
2 “parts” of the nervous
system
Central / Autonomic = Brain & Spinal Cord
Function = controls all of the voluntary and
involuntary movement in your body
Brain & Spinal Cord Activities
1. The Nervous System – Brain
handout (cross out #7)
2. What are the Parts of the
Brain? handout
* After finishing an
activity you must check
for correctness before
moving on
3. The Brain Poster
• If answer are wrong, try
again
4. Your Nervous System –
Ready for Action Article and
Questions
• If correct move on to
next assignment
5. Brain Origami
Exit Ticket
1. You are memorizing vocab words for a quiz,
which part of the brain is working for you to
memorize?
2. Your heart is beating, which part of the brain
controls that?
Warm Up
Put yesterday’s HW on desk
Copy the sentences and fill in the blanks.
1. The 3 parts of the brain are the ___________,
__________ and _________.
2. Balance and posture are controlled by the _____
3. The Central Nervous system is made up of the
____________ and _________
•Made up of the nerves/neurons that
come from the brain and spinal cord
* and the sense organs.
Ear
Skin
Eye
Nerves
Tongue
Function
• To connect the central nervous system to the
limbs (arms & legs) and organs all around the
body
Neuron
What is it?
A nerve cell, it is one of 2 main types of cells
found in the nervous system.
Function
Carry messages to and from the brain through
the spinal cord to every part of the body
Types of Neurons
Motor neurons – work with muscles to make
movement possible
Sensory Neurons – bring messages from
senses to our brain
Other info
- human body is made of billions of neurons
- Neurons connect to other neurons to make
pathways or tracts for messages to travel
down
What does a neuron look like?
Myelin
Axon
Dendrites
Cell Body
Functions of Neuron Parts
Dendrite = part of the neuron that receives messages
from other neurons
Axon = receives messages from the cell body and
send the messages to dendrites of other neurons
Cell Body = Controls whether a message is sent to
the axon
Myelin = fatty substance that covers/protects the
axon
Messages are sent through
Neuron chains
Synapse = gap between the axon of one cell
and the dendrite of another
Dendrite
Cell Body
Axon
Sense organs
carry messages
about the
environment to
the central
nervous
system.
What are sense organs?
The organs in your body that allow you to sense
- Eyes
- Ears
- Nose
- Tongue
- Skin
Vision is your ability to see.
*Optic nerves in the eye carry the
image from the back of the eye to
the brain
When a sound is made, the air
around the sound vibrates.
vibrations travel inside head and turn
into signals.
*Vestibular nerves in ear send signals
to the brain and a message telling us
what the sound means is made
*The liquid in your inner ear works
with the brain to control your
balance.
All of your movements are controlled
by balance and muscles.
The sense of touch is located in the skin.
The sensory receptor nerves in
the skin allow us to feel
texture, pressure, heat, cold,
and pain.
*Sense Receptors in the nose control
your sense of smell.
The nose is able to smell 80
different kinds of smells.
Scientists don’t understand
anything about how our sense of
smell works !!
Your sense of taste comes from the
taste buds in the tongue.
*Taste buds (small lumps of sensing
tissue) are the parts on the tongue that
allow us to taste.
The four kinds of taste buds are
sweet, sour, bitter, and salty.
What type of neuron deals with
the senses?
Sensory Neurons
Exit.
1. How many parts does a neuron have?
2. What is the job of a neuron?
3. If the brain wants your big toe to move,
how does that message get to your toe?
Warm Up – put HW on desk
Copy the sentence and fill in the blank
1. The peripheral nervous system is made up of
_____________ and _____________.
2. The 4 parts of a neuron are the _________,
__________, _________ and _________.
3. The 2 types of neurons are ______ and _____.
1. The peripheral nervous system is made up of
Nerves/Neurons and sense organs.
2. The 4 parts of a neuron are the DENDRITE,
AXON, CELL BODY and MYELIN.
3. The 2 types of neurons are SENSORY and
MOTOR
Warm Up
Take out both nervous system packets, copy and answer
the following questions. No talking!!!!!!!
1. The parts of the body that make up the Peripheral
Nervous System are the _______ and __________.
2. A _____________ has 4 parts and carries message
sent from the brain all over the body.
3. A __________ is the part of a neuron that sends the
messages to the next neuron.
1. The parts of the body that make up the
Peripheral Nervous System are the
NERVES/NEURONS and SENSE
ORGANS.
2. A NEURON has 4 parts and carries
message sent from the brain all over the
body.
3. A AXON is the part of a neuron that sends
the messages to the next neuron.
Today’s Agenda
Leveled Curriculum
• Due = Monday at the start of
class
Your grade depends on how
much work you do
D = not all level C finished
C = all of level C finished
B = all of C and B finished
A = all of C, B and A finished
Rules / Guidelines
- WORK ON YOUR OWN,
NO COPYING
- Copying = F
After completing an entire
level, raise your hand for
Ms. Stoker to check your
answers and sign off
- If all answers are correct,
move on – if not try again
Layered Curriculum
* The Nerve Cell Article and Questions =
back of Peripheral Nervous System Packet
Independent Work
Means on your own!
Before you ask for help, you must
1. READ THE DIRECTIONS on handout and
project sheet
2. Look through your packets and try to find that
answer
3. Ms. Stoker will not give you the answers…
EVER
1. Nervous System
2. Stimuli
3. Neurons
4. Cell Body
5. Dendrites
6. Axon
8. Synapse
9. Sensory
10. Motor
12. Brain
13. Spinal Cord
14. Central
15. Cerebrum
16. Brain Stem
17. Peripheral
Warm Up
Put leveled curriculum work on desk
- Ms. Stoker will staple when she collects it
*Study packets for your quiz!
You will have 5 min to study silently
Quiz
Eyes on own paper
No talking
Researching Nervous System Disorders
Independent project on Nervous
System disorder of your
“choice”
Using research article, you will
read about disorder to
determine
1. Cause
2. Symptoms / Affect on body
3. Treatment
4. Facts (at least 4)
*info must be written in complete
sentences!!
Two Part Project
1. Handout w/ research
questions answered in
complete sentences
2. Poster
1.
2.
3.
4.
5.
•
•
Description of disorder
Causes
Symptoms
Treatment
4 Interesting facts
Pictures
Color
Due Monday, can be turned in
today if finished