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DO NOW
Objective SWBAT identify structures and functions of the CIRCULATORY system.
11/28
How do the Respiratory and Circulatory System
work together?
This week’s HW: Respiratory
System Review
Reminders:
--Voice Level 0 during Do Now
--Keep aisles clear of belongings
ESSENTIAL QUESTION:
How do the structures and functions of the
CIRCULATORY system provide oxygen to the
body?
OBJECTIVES:
-Model the EXCHANGE OF GASES in
the CIRCULATORY system
-Discover how the respiratory and
circulatory system work together.
Respiratory and Circulatory System Review
7th
Grade
Science
Complete both the Respiratory and Circulatory System Readings and Questions
Circulatory System Video
7th
Grade
Science
DO NOW
Date:
11/29
Q: How do the structures and functions of the
CIRCULATORY system provide oxygen to the
body?
Create a Venn Diagram to compare
the Respiratory and Circulatory
systems.
ESSENTIAL QUESTION:
How do the structures and functions of the
CIRCULATORY system provide oxygen to the
body?
OBJECTIVES:
-Finish notes from yesterday
-Diagram the flow of blood through
the circulatory system.
QUIZ-STUDY (5 min)
7th
Grade
Science
Study the structures and functions of the
circulatory and respiratory systems.
Be sure to take a look at the steps in which
blood circulates to lungs, heart, and cells on
the body.
QUIZ
7th
Grade
Science
Voice Level = 0
When finished, read silently OR:
Using the heart templates provided, write a
short letter of appreciation to your sheep from
yesterday. Celebrate its life and thank it for
allowing you to utilize its body for your
learning! 
QUIZ – Trade and Grade
7th
Grade
Science
SWITCH PAPERS WITH SOMEONE NEAR YOU.
DO NOW
Objective SWBAT explore structures and functions of the circulatory system.
11/30
And
12/1
Describe the function of each of the 3 types of
blood vessels?
This week’s HW: Respiratory
System Review
Reminders:
--Voice Level 0 during Do Now
--Keep aisles clear of belongings
--Homework due Friday
Observations – pg. ___ INB
Written
Observations
Anterior (front)
Side
Written
Observations
Posterior (Back)
Side
Sketch
Anterior (front)
Side
Sketch
Posterior (Back)
Side
7th
Grade
Science
Observations
What I Think
I think the difference between
the white and gray tissue is
that ____.
I think the large, diagonal line
across the heart is ____.
I think one half of the heart is
larger than the other half
because _____.
7th
Grade
Science
What I Know
We will fill
this in
after the
dissection
The Heart
How does the heart work? The Heart
7th
Grade
Science
Dissection Safety
7th
Grade
Science
Hold scalpel properly; it is extremely sharp.
Wear goggles at all times
Do not taste or eat any part of the heart
Wear gloves and avoid contact with skin
Heart Dissection Procedures
Objective: Locate the blood vessels
that supply (feed) the heart with
blood.
Structures:
Coronary Artery
Coronary Vein
Functions:
1. The coronary arteries deliver
oxygenated blood to the heart.
2. The coronary veins remove
deoxygenated blood from the
heart.
7th
Grade
Science
Heart Dissection Procedures
7th
Grade
Science
Objective: Identify the veins that
deliver deoxygenated blood to the
heart.
Structures:
1. Superior Vena Cava
2. Inferior Vena Cava
Functions:
1. Superior Vena Cava returns blood
from the top half of the body
2. Inferior Vena Cava returns blood
from the bottom half of the body
Superior
V.C.
Inferior
V.C.
Posterior (Back) View
Heart Dissection Procedures
7th
Grade
Science
Objective: Expose the 2 chambers of the
heart that hold and pump deoxygenated
blood.
Procedures:
1. Locate superior vena cava
2. Make an incision (cut) beginning at the
superior vena cava to the bottom of the
heart.
3. Cut deep enough that you can open the
heart like a book.
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Identify the 2 chambers of the
heart that hold and pump deoxygenated
blood.
Structures:
1. Right Atrium
2. Right Ventricle
3. Tricuspid Valve
Tricuspid
Valve
Right
Atrium
Functions:
1. Right atrium receives blood from the
superior and inferior vena cava
2.
Right ventricle pumps blood to the lungs.
3.
Tricuspid valve prevents blood from
flowing backwards
Right
Ventricle
Heart Dissection Procedures
7th
Grade
Science
Objective: Identify the blood vessel that carries
deoxygenated blood to the lungs.
Tricuspid
Valve
Structures:
1. Pulmonary Arteries
Functions:
1. The pulmonary arteries carry
deoxygenated blood away from the heart
to the lungs.
Procedures: Using your finger or a probe,
locate the opening inside the right
ventricle that leads to the pulmonary
arteries.
Right
Atrium
Right
Ventricle
Heart Dissection Procedures
7th
Grade
Science
Objective: Identify the blood vessels that
transport oxygenated blood to and from
the heart.
Structures:
1. Pulmonary Vein
2. Aorta
Aorta
Pulmonary
Artery.
Aorta
Pulmonary
Vein
Superior
V.C.
Functions:
1. The pulmonary veins deliver
oxygenated blood from the lungs to
left atrium of the heart.
1. The aorta is the artery than moves
oxygenated blood out of the heart.
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Expose the 2 chambers of
the heart that hold and pump
oxygenated blood.
Procedures:
1. Locate aorta
Aorta
Pulmonary
Vein
Superior
V.C.
2. Make an incision (cut) beginning at
the aorta, continuing through the
pulmonary vein, and ending at the
bottom of the heart.
3. Cut deep enough that you can
open the heart like a book.
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Identify the 2 chambers of the
heart that hold and pump oxygenated
blood.
Structures:
1. Left Atrium
2. Left Ventricle
3. Mitral Valve
Functions:
1. Left atrium receives blood from the
pulmonary veins.
2.
Left ventricle pumps blood out the
aorta to the body.
3.
Mitral valve prevents blood from
flowing backwards
Left
Atrium
Mitral
Valve
Left
Ventricle
Posterior (Back) View
7th
Grade
Science
Heart Dissection Procedures
Objective: Locate the opening inside the
left ventricle that leads to the aorta.
Procedures: Using your finger or a probe,
locate the opening inside the Left
ventricle that leads out to the aorta.
Left
Atrium
Aorta
Mitral
Valve
Left
Ventricle
Posterior (Back) View
Clean-Up Procedures
1. Clean dissection tray
1. Throw away large pieces of tissue in garbage
2. Clean tray with sponge and water.
3. Set it out to dry
2. Clean dissection tools.
3. Dry off tools and place them on a paper towel.
4. Wipe lab area down with disinfectant wipe.
7th
Grade
Science
Conclusion
7th
Grade
Science
http://library.med.utah.edu/kw/pharm/hyper_heart1.html
What I Think
I think the difference between
the white and gray tissue is
that ____.
I think the large, diagonal line
across the heart is ____.
I think one half of the heart is
larger than the other half
because _____.
What I Know
EXIT TICKET – p. 98
7th
Grade
Science
Copy the following paragraph into your notebook on page 98. Use the
word bank to help you fill in the blanks.
Veins return __(1)__ blood back to the heart.
The heart then pumps the oxygen poor blood to
either the right or left __(2)__. There, the blood
picks up oxygen and drops off carbon dioxide at
the __(3)__. Next, the __(4)__ blood returns
back to the heart. The oxygen rich blood is
pumped away from the heart through __(5)__.
As it travels, the blood passes through very tiny
blood vessels called __(6)__, where it delivers its
O2 load to the cells and picks up their waste, like
CO2. Then it returns back to the heart and the
cycle repeats.
Answer Choices:
a. Oxygenated
b. Deoxygenated
c. Arteries
d. Lung
e. Capillaries
f.
Alveoli
DO NOW
Date:
12/2
The function of the digestive
system is to break down the
food we eat for nutrients.
Brainstorm as many
structures of the digestive
system as you can.
ESSENTIAL QUESTION:
How do the structures of the digestive system work
together to process the food you eat?
OBJECTIVES:
-Review
Presentation on the Digestive System
-Digestive system notes to record the structures
and functions of the digestive system
Digestive System Notes
Glue Note Sheet to pg. ___ INB
Digestion Presentation
Use your sheet to complete notes on the
Digestive System.
Digestion Prezi
Mechanical vs Chemical Digestion
• Video
VENN DIAGRAM
Draw the following Venn Diagram in your
notebook. Use the following information to
fill it in.
Mechanical Digestion
Chemical Digestion
Mechanical Digestion
Mechanical digestion is the physical break down
of food into smaller pieces.
Mechanical Digestion
EXAMPLE:
CHEWING!
Mechanical Digestion
EXAMPLE:
Peristalsis:
The squeezing of muscles
in the digestive system
which forms a wave that
moves food along.
Chemical Digestion
Chemical Digestion is the chemical break down
of foods into smaller molecules.
Chemical Digestion
Example:
Enzymes in your saliva
and stomach begin
breaking up molecules in
your food.
Stomach acid
(Hydrochloric acid) also
breaks down fats,
proteins, and starch into
much simpler molecules
as shown in this diagram.
Chemical Digestion
**Notice how the large
molecule only break apart
into smaller pieces.
The shapes and colors do
not change. They simply
detach from one another.