Download The Nervous System

4/28 Daily Catalyst Pg. 62 Nervous System
1. Francisco and Stephanie are working on their public health
campaign project when suddenly Stephanie is very sick! Francisco,
being a good friend, stays by her side. Over the next couple of
days, Francisco becomes sick.
a. Is this a communicable or non communicable disease?
b. Is this disease infectious?
c. Is this disease contagious?
2. True or false, Virus reproduce by a host cell and bacteria do not
reproduce at all.
3. True or false, A cold is not considered a disease because it only
lasts about 1-2 weeks.
4/28 Class Business Pg. 62 Nervous System
 Public health campaign project due FRIDAY, May 1st
 Presentation sign up’s
 Quiz #14 on Friday
 See me for tutoring
 Extra credit: gloves, paper towels, hand sanitizer, tissues, band
aids, pens, pencils, paper, red pens, tape, glue, and colored
paper, markers, and, white board markers
 Extra credit school play
 May 1, 2, 9
 ½ sheet review STAPLED to your ticket
4/28 Agenda Pg. 62 Nervous System
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Daily Catalyst
Class Business
Nervous system notes
Work Time
Practice time
Quiz #13
Homework: nervous system assignment
4/28 Objective
Today, we will explore how the body
maintains homeostasis with the use of the
nervous system.
Nervous System Essential Questions
 How does the body maintain homeostasis?
 How does the brain send and receive messages?
 What parts of the brain control body actions?
The function of the nervous system
Key Point #1: Function of the nervous
system
 The control center of the body
 There are 2 parts to the nervous system:
 The central nervous system
 The peripheral nervous system
PART 1: THE CENTRAL
NERVOUS SYSTEM (CNS)
 Key Point #2: The Central Nervous System
 CNS
 Brain and spinal cord
 Control center and makes decisions
Anatomy of the brain
The brain is the control center of the entire nervous system.
Motor area
Cerebrum
Sensory area
Speech area
Language area
Vision area
Taste area
General
interpretation
area
Intellect,
learning, and
personality
Balance
area
Hearing
area
Brain stem
Cerebellum
You do not need to know all of these parts!! Just 3…
Anatomy of the Brain
1. Cerebrum-controls
conscious, voluntary
actions
Examples:
-muscle movements
-knowledge
-language
2. Cerebellum controls
balance, posture &
coordination.
If you injure your cerebellum,
your movements become jerky.
Examples-Walking
-standing on one foot
Anatomy of the Brain
Anatomy of the Brain
3. Brain Stem- controls
involuntary functions
Examples:
-breathing
-heart rate
-body temperature
Example:
 Mrs. Ireland sits down and begins to write down all of
the vocabulary from Biology II. What part of the brain
is this? She then stands up and stands on one leg for
10 minutes. What part of the brain is this?
 Cerebrum
 Knowledge and learning
 Cerebellum
 coordination
Part II: PERIPHERAL
NERVOUS SYSTEM
What is the peripheral nervous
system?
 Key Point #3: The peripheral nervous system
 PNS
 Nerves of the body
 Carries messages to the CNS and responses FROM the CNS
What do nerve cells (neuron) look
like?
Key Point #4: A neuron is the functional cell of the nervous system.
Dendrites
Neurons carry
information
through the
nervous system
in a form called
an impulse.
Axons
Cell Body
Schwann Cell
Nucleus
Myelin Sheath
What do nerve cells (neuron) look
like?
1. The dendrites receive
messages
2. The cell body
processes the
information
3. The axon passes the
message on to the next
neuron
 https://www.youtube.com/watch?v=8SfOOsPwwsA
How are messages sent?
Key Point #5: Sensory neuron → interneuron →Motor Neuron
 Sensory neurons: sense information
from the environment
 carry info to the brain
 Interneurons (CNS): processes
information and makes the decisions
 Motor neurons: take response to the
muscles
Another Example:
 I see Drew Brees (sensory neurons)
 I perceive that it is him, and I realize I am excited and want to say hi!
(interneuron)
 The interneuron sends the message to my arm muscles to wave and
my mouth muscles to say hi! (motor neuron)
 You try:
 Describe the role of each neuron
in a process you have done since
entering the classroom
Work Time
Directions: Using your notes, complete the nervous
system assignment. What is not finished in class, is
homework! Use your time efficiently. You have a quiz
today!
Time: 15 minutes
Noise: 1 (with partner)
Example
Damage to his cerebrum!
Practice Time
Peripheral Nervous System (P) or
Central Nervous System (C)
Includes the brain and the spinal cord
Central Nervous System
Peripheral Nervous System (P) or
Central Nervous System (C)
The nerves in your fingertips are included in this
system
Peripheral nervous system
Peripheral Nervous System (P) or
Central Nervous System (C)
Interneurons are included in this system
Central Nervous System
Peripheral Nervous System (P) or
Central Nervous System (C)
Both sensory and motor neurons are included in this
system
Peripheral nervous system
A. Cerebrum B. Cerebellum C. Brain Stem
This part of your brain controls your breathing and
heart rate
Brain Stem
A. Cerebrum B. Cerebellum C. Brain Stem
This part of your brain allows you to walk out the door
when class is over
Cerebrum
A. Cerebrum B. Cerebellum C. Brain Stem
Quiz #13
 Directions: Silently and independently complete the
quiz. Turn your quiz into the basket when you are
finished.
 Time: 12 minutes
 Noise: 0 (SILENT)
 1. Write down one concept from today that has stuck
with you.
 2. Write down one question you have about diseases or
homeostasis.
 3. Place your sticky note on the back door as you leave.
 Have a great weekend!
Public Health Project Work Time
 Directions: using the rubric as a guide, decide your
topic for the public health project and being the
creative educational process!
 I will show you two examples!
 Time: 12 minutes
 Noise: 0 0r 1 (if working with a partner)
Exit Ticket #12
 Name: ________ Date: 4/22 Period: 2 Score: ______/4
 1. Name the two parts to the CNS.
 2. What controls heart and breath rate?
 3. what type of neuron senses information from the
brain?
 4. True or false, the cerebellum controls activities such as
language and memory.
Exit Ticket #12
 Name: ________ Date: 4/22 Period: 2 Score: ______/4
 1. Name the two parts to the CNS.
 Brain the spinal cord
 2. What controls heart and breath rate?
 Brain stem
 3. what type of neuron senses information from the brain?
 Sensory neuron
 4. True or false, the cerebellum controls activities such as language
and memory.
 false