Download - Bright Star Schools

WEEK 21 PACKET
CIRCULATORY SYSTEM
SCIENTIST NAME: _______________________________ PERIOD: ______
DO NOWS
NOTES
INDEPENDENT
PRACTICE/ EXIT
TICKETS
TIMELINESS
Unacceptable
0 points
Little or no Do Nows are
complete.
Acceptable
80 points
Most Do Nows are
completed in
complete sentences.
Little or no
foldables/notes are
complete.
Little or no independent
practice is complete.
Most
foldables/notes are
complete.
Most independent
practice is complete.
Packet is turned in more
than a week late.
Packet is turned in
within a week of due
date.
CLASS MOTTO
 Work Hard.
 Be nice.
Exemplary/Target
100 points
All Do Nows are
completed in
complete sentences
with thoughtful
answers that
incorporate unit
vocabulary.
All foldables/notes are
completed.
All independent
practice is completed
fully with thoughtful
answers.
Packet is turned in on
due date.
February 8, 2016
Objective: Scientists will describe the functions of several parts of the heart by answering 4/5
questions correctly on an exit ticket.
Standard 7.6.j Students know that contractions of the heart generate blood pressure and that
heart valves prevent backflow of the blood in the circulatory system.
Directions: Read and annotate the passage and answer the questions that follow.
Working That Muscle
Your heart is really a muscle. It's located a little to the left of the middle of your chest, and it's about the size of
your fist. There are lots of muscles all over your body — in your arms, in your legs, in your back, even in your
behind.
But the heart muscle is special because of what it does. The heart sends blood around your body. The blood
provides your body with the oxygen and nutrients it needs. It also carries away waste.
Your heart is sort of like a pump, or two pumps in one. The right side of your heart receives blood from the
body and pumps it to the lungs. The left side of the heart does the exact opposite: It receives blood from the
lungs and pumps it out to the body.
We Got the Beat
How does the heart beat? Before each beat, your heart fills with blood. Then its muscle contracts to squirt the
blood along. When the heart contracts, it squeezes — try squeezing your hand into a fist. That's sort of like
what your heart does so it can squirt out the blood. Your heart does this all day and all night, all the time. The
heart is one hard worker!
Where is your heart located? _______________________________________________
Why is your heart a special muscle? Why do we need it to survive? _________________
__________________________________________________________________________
What does the right side of your heart do?
__________________________________________________________________________
__________________________________________________________________
What does the left side of your heart do?
__________________________________________________________________________
__________________________________________________________________
The Cardiovascular System
What is the cardiovascular system?
__________________________________________________________________________________________________
__________________________________________________________________________________________________
The cardiovascular system includes:
_________________________________________________________________________________________________
Definition:
Characteristics:
The heart
Image:
Facts:
Parts of the heart
Four (4) Chambers
Function
Atria (Atrium, singular) –
Ventricles-
Septum
Pacemaker
Valves
Self Monitoring
Below, rate how you feel about your understanding of the objective today.
1
2
3
(I don’t understand at all)
4
(I could teach this to someone else)
Correct?
Questions: Match the following:
Heart
Atria
Aorta
Ventricles
Valves
Pacemaker
1. ______________________________________________________ separates the atria from ventricles and
prevent blood from flowing backward
2. ______________________________________________________ is a group of cells located in right atrium
that send signal to make heart contract
3. ______________________________________________________ are the lower two chambers of heart
4. The ______________________________________________is a hollow, muscular organ that pumps blood
throughout the body
5. The __________________ are the upper two chambers of heart
6. The _______________________________ is the artery that carries oxygen-rich blood to the rest of
the body.
Reflection:
Did you meet our objective for the day? How do you know?
One thing I learned in class today
was__________________________________________________________________________________________
_____________________________________________________________________________________________
One way I contributed (added something positive to) the class today was ______________________________
_____________________________________________________________________________________________
____________________________________________________________________________________________
Are you on track for our BIG GOAL (80% or above on everything)? How do you know? _______________________
_____________________________________________________________________________________________
Name: ________________________________________ Conference: _____________ Date: ____________________
February 8, 2016
Objective: Scientists will describe blood, blood vessels, or the path of blood through the heart by
completing stations.
Standard 7.6.j Students know that contractions of the heart generate blood pressure and that heart
valves prevent backflow of the blood in the circulatory system.
Part 1 Directions: Match the word on the left with its definition on the right.
_____ 1. Ventricles
_____ 2. Atria
_____ 3. Septum
a. The thick layer that separates the right and left sides of the heart.
b. The cells in the right atrium that control the heart’s contractions.
c. Open and close to keep blood pumping in one direction and
prevent the back-flow of blood.
d. The two upper chambers of the heart that receive blood.
e. The two lower chambers of the heart that pump blood out.
_____ 4. Pacemaker
_____ 5. Valves
Part 2 Directions: Label the diagram with the words in the word bank.
Right atrium
Left atrium
Right ventricle
Left ventricle
Septum
Valves (4 total)
Directions: Read the passage, answer the questions, and complete the tree map with information from the reading.
All the cells in our bodies need oxygen, food, and other nutrients.
Cells also produce waste products that need to be removed. How do
substances get to and from cells? All these substances are transported
1. What does blood do? ________________
____________________________________
____________________________________
____________________________________
by the blood in the circulatory system. Blood is a tissue and contains
many different substances – even cells. Blood is about 55% plasma,
which is 90% water. The remaining 10% is composed of ions, proteins,
and other substances the body requires.
Platelets and White Blood Cells
Platelets, white blood cells, and red blood cells make up the remaining
45% of blood. Platelets are fragments or pieces of cells contained in
your blood. After an injury, proteins in the blood cause platelets to
form a plug which stops the bleeding. Without platelets, even a small
cut would continue bleeding because a scab would not form. White
blood cells are part of the immune system, which fights infections.
2. What do platelets do? ________________
____________________________________
___________________________________
3. What do white blood cells do? _________
____________________________________
____________________________________
Red Blood Cells
Your body contains about 25 trillion red blood cells. Red blood cells
are normally shaped like a disc that is flattened on both sides. Red
blood cells have proteins called hemoglobin that carry oxygen.
Because of this protein and their shape, red blood cells can transport
4. What is the job of the red blood cells? ___
____________________________________
5. What is hemoglobin? ________________
____________________________________
____________________________________
about one billion oxygen molecules.
Check for Understanding: Complete the tree map classifying the components of blood.
Blood
Plasma
Platelets & White
Blood cells
Blood travels to and from the heart in vessels. The vessels of the
circulatory system are like the roads of a city. A city has large
freeways, smaller highways, and even smaller neighborhood streets.
Red Blood Cells
1. Arteries are ________________________
____________________________________
____________________________________
Similarly, the circulatory system has large blood vessels that are
connected to smaller vessels. Arteries are vessels that carry
oxygenated blood away from the heart to organs in the body.
Arteries branch into smaller vessels, and then even smaller vessels
called capillaries. Capillaries are smallest blood vessels that deliver
2. Capillaries are ______________________
____________________________________
____________________________________
oxygen and nutrients to the organs. Just as oxygen-rich blood flows
away from the heart, oxygen-poor blood carrying carbon dioxide
must return to the heart. The capillaries take up carbon dioxide and
other wastes before joining with larger vessels that carry the blood on
its return path. These vessels connect to larger vessels called veins
that carry deoxygenated blood back to the heart. Veins contain
valves that keep the blood flowing in one direction.
All blood vessels have the same basic structure. The inner lining is a
thin, flat layer of cells where the blood and the vessel wall meet.
Every part of the circulatory system is lined by this thin layer of cells.
The next layer is of connective tissue, followed by a layer of smooth
muscle. The muscle layer is more developed in arteries.
3. TRUE OR FALSE? Capillaries are the
smallest blood vessels.
4. Veins are __________________________
____________________________________
____________________________________
Check for Understanding: Complete the double bubble map to compare and contrast
ARTERIES and VEINS.
Arteries
Veins
Directions: Draw arrows to show the path of blood in the heart diagram below. Number each step from the flow
map. Label where blood is going to and from the lungs and body. Use Textbook p. 490 as reference.
Directions: Look at the diagram below and trace the path of blood through the heart with your finger.
Then, complete the paragraph describing the flow of blood through the heart.
Directions: Practice measuring blood pressure several times until the results fall under “Normal” conditions.
Questions
1. Did you hear the heart beat through the stethoscope? Describe the sound you heard between the systolic and
diastolic pressure.
2. Is having low blood pressure good or bad? Please explain your thoughts.
3. Is having high blood pressure good or bad? Please explain your thoughts.