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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.