Closing:
 Resubmit any incomplete/missing work.
 Update Science Journal Page Numbers: Add completed/graded
work to your science journal.
 Answer the following:
1. Which of the following does the nervous system do?
a. regulates the body’s activities
b. responds to stimuli
c. transmits nerve impulses
d. activates muscles
e. e. all of the above
2. What hemisphere (side) of the brain is responsible for logical
reasoning, analytical, and math skills?
a. right hemisphere
b. left hemisphere
c. medulla
d. top
e. none of the above
3. What hemisphere (side) of the brain is responsible for creativity,
emotions, art, and music skills?
a. right hemisphere
b. left hemisphere
c. medulla
d. top
e. none of the above
Name__________________________________
Date 02/15/17 Science Journal Page 27 Period__________
Teachers: Mrs. Cabak & Mrs. Osakwe / Life Science – 7th Grade
Topic: Unit 4 Human Body Systems – Nervous System, Day 2
Inquiry Question: Your goal is to answer this question…
What are the different systems of the body and how do they interact to
fulfill an organism’s needs? Focus on interaction with the nervous systems.
1. Please enter the room quietly and sit in your assigned seat.
Remember you need a pencil (sharpener) and agenda on your desk.
Place your personal items under your seat.
2. You will need a book, pen or pencil, this paper, and your science
journal (composition notebook) (and colored pencils)
3. Start the Bell Ringer, complete the activity, and closing
4. Finish any incomplete/missing work graded below 70 and turn it in.
5. Update your composition notebook with returned assignments that
do not need to be resubmitted.
Objectives:
1. Describe the functions of the left and right hemispheres of the
brain.
2. Draw and label the structure of a motor neuron inside a nerve to
the muscle
3. Describe one disease of the nervous system: Alzheimer’s
Bell Ringer:
 What is a neuron?_______________________________________
 What is the function of a neuron?___________________________
?_____________________________________________________
Online Text: https://my.hrw.com/
(username: Cabak2017 Password: student)
Opening: Human Nervous System (youtube)
https://www.youtube.com/watch?v=aboVLnsCH44
Activity:
Read the passage on Nerves. Circle the word Nerve and underline the
definition.
The central nervous system is connected to the rest of your body by
nerves. A nerve is a collection of axons bundled together with blood vessels
and connective tissue. Nerves are everywhere in your body. Most nerves
have axons of both sensory neurons and motor neurons. Axons are parts of
nerves, but nerves are more than just axons. Figure 3 shows the structure of
a nerve. The axon in this nerve transmits information from the spinal cord
to muscle fibers
Fill in the blanks (p. 658, Figure 3)
A message from the brain travels down the _________________
____________, then along the axon of a __________________neuron
inside a nerve to the muscle. The message makes the message contract.
Draw and label Structure of a Neuron (p.658, Figure 3)
Label: Spinal cord, nerve, axon, axon terminal, and muscle fiber
The Central Nervous System
Read the passage on the cerebrum (part of the brain – control center)
The largest part of your brain is called the cerebrum. It controls
voluntary movements and allows you to sense touch, light, sound, odors,
taste, pain, heat, and cold.
The cerebrum has two halves, called hemispheres. The left hemisphere
directs the right side of the body, and the right hemisphere directs the left
side of the body. Figure 4 shows some of the activities that each hemisphere
controls. However, most brain activities use both hemispheres.
Fill in the blanks (p.660, Figure 4)
The left hemisphere primarily controls activities such as
1. ______________________________
2. ______________________________
3. ______________________________
4. ______________________________
The right hemisphere primarily controls activities such as
1. ______________________________
2. ______________________________
3. ______________________________
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*** Disease/Disorder – Real World Connection ***
According the Centers for Disease Control and Prevention (CDC):
Alzheimer’s disease is the most common cause of dementia among older
adults.
It is the fifth leading cause of death for adults aged 65 years and older,
and the sixth leading cause of death for all adults.
Alzheimer’s disease involves parts of the brain that control thought,
memory, and language and over time can seriously affect a person’s
ability to carry out daily activities.
Known risk factors include increased age and having a family history of
Alzheimer’s disease.
Currently, there is no prevention or cure. Treatment options involve
delaying or managing symptoms and care planning.
 For more information, go to:
https://www.cdc.gov/dotw/alzheimers/
What is one nervous system disease that causes memory loss in old age,
and the inability to function independently? _______________________