DO NOW Page 64 Objective 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

Modeling the Circulatory System 7 th Grade Science What do you think of when you see this image?

Modeling the Circulatory System 7 th Grade Science Red Blood Cell

Modeling the Circulatory System 7 th Grade Science

Function of the Circulatory System 7 th Grade Science Oxygen and Nutrients Picks it up from Lungs Takes it to Body Carbon Dioxide and wastes Takes it to Lungs Picks it up from Body

Modeling the Circulatory System 7 th 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

Modeling the Circulatory System 7 th 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

Modeling the Circulatory System 7 th 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.

Modeling the Circulatory System 7 th 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.

Modeling the Circulatory System 7 th 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.

Modeling the Circulatory System 7 th 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 64 Objective 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 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: -Finish notes from yesterday -Diagram the flow of blood through the circulatory system.

Circulatory System Notes 7 th 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 gallons of blood pumped per day.

Circulatory System Notes 7 th Grade Science 2. Veins Take blood to the heart Generally blood in veins is low in oxygen and high in CO 2. The pulmonary vein contains blood that is high in O 2 and low in CO 2.

Circulatory System Notes 7 th 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

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 64 Objective 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 This week’s HW: Respiratory System Review

Observations 7 th Grade Science Written Observations Anterior (front) Side Sketch Anterior (front) Side Written Observations Posterior (Back) Side Sketch Posterior (Back) Side

Observations 7 th Grade Science I think the difference between the white and gray tissue is that ____. What I ThinkWhat 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 Heart 7 th Grade Science How does the heart work? The HeartThe Heart

Dissection Safety 7 th 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 7 th Grade Science 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.

Heart Dissection Procedures 7 th 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 Posterior (Back) View Inferior V.C. Superior V.C.

Heart Dissection Procedures 7 th 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

Heart Dissection Procedures 7 th Grade Science Objective: Identify the 2 chambers of the heart that hold and pump deoxygenated blood. Structures: 1.Right Atrium 2.Right Ventricle 3.Tricuspid Valve 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 Right Atrium Tricuspid Valve

Heart Dissection Procedures 7 th Grade Science Objective: Identify the blood vessel that carries deoxygenated blood to the lungs. 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 Ventricle Right Atrium Tricuspid Valve

Heart Dissection Procedures 7 th Grade Science Objective: Identify the blood vessels that transport oxygenated blood to and from the heart. Structures: 1.Pulmonary Vein 2.Aorta 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 Aorta Superior V.C. Pulmonary Vein Pulmonary Artery.

Aorta Heart Dissection Procedures 7 th 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. Posterior (Back) View Superior V.C. Pulmonary Vein

Heart Dissection Procedures 7 th Grade Science 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 Posterior (Back) View Mitral Valve Left Atrium Left Ventricle

Heart Dissection Procedures 7 th 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. Posterior (Back) View Mitral Valve Left Atrium Left Ventricle Aorta

Clean-Up Procedures 7 th Grade Science 1.Place your heart into plastic bag and write your table number and period on the bag. 2.Clean dissection tray 1.Throw away large pieces of tissue in garbage 2.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.

Conclusion 7 th Grade Science I think the difference between the white and gray tissue is that ____. What I ThinkWhat 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 _____.

EXIT TICKET 7 th 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 O 2 load to the cells and picks up their waste, like CO 2. Then it returns back to the heart and the cycle repeats.

DO NOW Date: 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. 7 th 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! 7 th Grade Science

QUIZ SWITCH PAPERS WITH SOMEONE NEAR YOU. 7 th Grade Science