do now page 64 objective swbat identify structures and functions of the circulatory system. prompt...

DO NOW Page 64Objective SWBAT identify structures and functions of the CIRCULATORY system.

Prompt Using your “Pathway of Air” Foldable, write the order of structures that air travels through ending with the alveoli.

Reminders: --Voice Level 0 during Do Now--Keep aisles clear of belongings--No afterschool tutorials today but you can come at lunch (especially if you were absent last week)

December 2, 2013

Cedillo

This week’s HW: Respiratory System Review

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.

ENGAGE:

Heart in a Box

http://www.youtube.com/watch?v=Fwd32Xa3uwc

Modeling the Circulatory System7th

Grade Science

What do you think of when you see this image?


Grade Science

Red Blood Cell


Grade Science

Function of the Circulatory System7th

Grade Science

Oxygenand Nutrients

Picks it up from

Lungs

Takes it to

Body

Carbon Dioxide

and wastes

Takes it to

Lungs

Picks it up from

Body


Grade Science

Imagine you are a tiny red blood cell.

Your job is to deliver oxygen and nutrients to cells in the body and to pick up their carbon dioxide and other wastes.

Record the steps of your journey along the way.

Circulatory Adventure

• VOICE LEVEL OF 0 in ALL HALLWAYS• Listen to the story as we travel• Half of you will be “Oxygen” and the other half

will be “Carbon Dioxide” – do not lose your card!

• FILL IN INFORMATION AS WE TRAVEL


Grade Science

We will begin our journey through the body in the tissues of the gut.

The blood picks up the carbon dioxide and other wastes from the cells.

We will continue our journey through the capillaries until we make our way to the veins. We will ride through the Inferior Vena Cava, the main vein in the body. The Superior Vena Cava brings blood from the head region of the body, the Inferior Vena Cava from the lower part of the body.

Room 405


Grade Science

Now we are in the heart, it is separated into four sections called chambers.

You have just entered the chamber called the right atrium and passed through the tricuspid valve. The valves in the heart keep blood pumping in one direction. Once past the tricuspid valve you enter the right ventricle. During the next beat of the heart, you will make your way through the pulmonary valve and away from the heart by traveling through the blood vessel called the pulmonary artery.

Veins carry blood to the heart.Arteries carry blood away from the heart.Next stop, the lungs.


Grade Science

Now we have arrived in the lungs.

Gas exchange occurs in the capillary covered, grape-like structures called the alveoli. The clusters of alveoli allow for a huge surface area for gas exchange. Red blood cells drop off the carbon dioxide waste from the body and pick up the oxygen.

Next stop…the heart through the blood vessel we call the pulmonary vein.


Grade Science

We are back at the heart traveling through the pulmonary vein. This time we arrive through the chamber called the left atrium, flow through the mitral valve and into the left ventricle during the next heart beat.

Next we enter the artery called the Aorta and eventually to the arm.


Grade Science

The blood cells enter the blood vessels and capillaries leading to the arm. It is here in the capillaries that the blood cells deliver oxygen and nutrients, and pick up the cells’ carbon dioxide and other waste.

Where is our next stop?

DO NOW Page 64Objective SWBAT identify structures and functions of the CIRCULATORY system.

Prompt Describe how the RESPIRATORY system and the CIRCULATORY system work together.

Reminders: --Voice Level 0 during Do Now--Keep aisles clear of belongings--Progress Reports go out today

December 3, 2013

Cedillo


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.

Circulatory System Notes7th

Grade Science

1. The heart is a muscle that pumps blood throughout the body.

It is about the size of your fist and will be the size of two fists when you are fully grown.

Never stops beating.Beats 100,000 times per day, 35

million times per year and 2.5 billion times in your life.

2000 gallons of blood pumped per day.


Grade Science

2. Veins

Take blood to the heart Generally blood in veins is low

in oxygen and high in CO2 .

The pulmonary vein contains blood that is high in O2 and low in CO2.


Grade Science

3.Arteries

Take blood away from the heart and to the body..

Generally, arteries contain blood that is loaded with oxygen and low on carbon dioxide.

Blue Blood Myth!

Blue Blood Misconception

http://www.youtube.com/watch?v=18--LFIs-FM

Color the path:

OXYGENATED blood (carrying oxygen and nutrients)

DEOXYGENATED blood (containing carbon dioxide and waste)

Steps in the Flow of Blood Through the Body

• USING THE NOTES THAT YOU TOOK IN THE PREVIOUS CLASS, DIAGRAM THE FLOW OF BLOOD THROUGH THE BODY.

• TRY TO BREAK IT DOWN INTO 4-5 STEPS• CREATE A PICTURE FOR EACH STEP.

Steps in the Flow of Blood Through the Body

STEP 1: PICTURE

DO NOW Page 64Objective SWBAT explore structures and functions of the circulatory system.

Prompt What are the three types of blood vessels? (Hint: they start with A, V, and C) What is the difference between each of them?

Reminders: --Voice Level 0 during Do Now--Keep aisles clear of belongings--Homework due Friday

December 4/5, 2013

Cedillo


Observations7th

Grade Science

Written Observations

Anterior (front)Side

Sketch

Anterior (front)Side

Written Observations

Posterior (Back)Side

Sketch

Posterior (Back)Side

Observations7th

Grade Science

I think the difference between the white and gray tissue is that ____.

What I Think What I Know

I think the large, diagonal line across the heart is ____.

I think one half of the heart is larger than the other half because _____.

We will fill this in

after the dissection

The Heart7th

Grade Science

How does the heart work? The Heart

http://www.brainpop.com/health/bodysystems/heart/

http://www.brainpop.com/health/bodysystems/heart/

Dissection Safety7th

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 7th

Grade Science

Objective: Locate the blood vessels that supply (feed) the heart with blood.

Structures: Coronary ArteryCoronary Vein

Functions: 1. The coronary arteries deliver

oxygenated blood to the heart.

2. The coronary veins remove deoxygenated blood from the heart.


Grade Science

Objective: Identify the veins that deliver deoxygenated blood to the heart.

Structures: 1. Superior Vena Cava2. Inferior Vena Cava

Functions: 3. Superior Vena Cava returns blood

from the top half of the body

4. Inferior Vena Cava returns blood from the bottom half of the body Posterior (Back) View

Inferior V.C.

Superior V.C.


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


Grade Science

Objective: Identify the 2 chambers of the heart that hold and pump deoxygenated blood.

Structures: 1. Right Atrium2. Right Ventricle3. Tricuspid Valve

Functions: 4. Right atrium receives blood from the

superior and inferior vena cava

5. Right ventricle pumps blood to the lungs.

6. Tricuspid valve prevents blood from flowing backwards

Right Ventricle

Right Atrium

Tricuspid Valve


Grade Science

Objective: Identify the blood vessel that carries deoxygenated blood to the lungs.

Structures: 1. Pulmonary Arteries

Functions: 2. 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 Ventricle

Right Atrium

Tricuspid Valve


Grade Science

Objective: Identify the blood vessels that transport oxygenated blood to and from the heart.

Structures: 1. Pulmonary Vein2. Aorta

Functions: 3. The pulmonary veins deliver

oxygenated blood from the lungs to left atrium of the heart.

4. The aorta is the artery than moves oxygenated blood out of the heart.


Aorta

Aorta

Superior V.C.Pulmonary

Vein

Pulmonary Artery.

Aorta


Grade Science

Objective: Expose the 2 chambers of the heart that hold and pump oxygenated blood.

Procedures: 1. Locate aorta

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.


Superior V.C.Pulmonary

Vein


Grade Science

Objective: Identify the 2 chambers of the heart that hold and pump oxygenated blood.

Structures: 1. Left Atrium2. Left Ventricle3. Mitral Valve

Functions: 4. Left atrium receives blood from the

pulmonary veins.

5. Left ventricle pumps blood out the aorta to the body.

6. Mitral valve prevents blood from flowing backwards


Mitral Valve

Left Atrium

Left Ventricle


Grade Science

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.


Mitral Valve

Left Atrium

Left Ventricle

Aorta

Clean-Up Procedures7th

Grade Science

1. Place your heart into plastic bag and write your table number and period on the bag.

2. Clean dissection tray1. Throw away large pieces of tissue in garbage2. Clean tray with sponge and water.

3. Clean dissection tools.

4. Dry off tools and place them on a paper towel at station.

5. Wipe lab area down with disinfectant wipe.

Conclusion7th

Grade Science

I think the difference between the white and gray tissue is that ____.

What I Think What I Know

I think the large, diagonal line across the heart is ____.

I think one half of the heart is larger than the other half because _____.

http://library.med.utah.edu/kw/pharm/hyper_heart1.html

http://library.med.utah.edu/kw/pharm/hyper_heart1.html

EXIT TICKET7th

Grade Science

Number a note card 1 through 6. Fill in each blank with the correct response.

Answer Choices:

a. Oxygenated

b. Deoxygenated

c. Arteries

d. Lung

e. Capillaries

f. Alveoli

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.

DO NOWDate:12/6

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.

QUIZ-STUDY (5 min)

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.

7th Grade

Science

QUIZ

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!

7th Grade

Science

QUIZ

SWITCH PAPERS WITH SOMEONE NEAR YOU.

7th Grade

Science

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