Living Systems Investigation 3, Part 2 – Circulatory Systems

Plant Circulation How are nutrients transported to cells in a plant? Living Systems, 3.2: Circulatory Systems Step 1

Focus Question How do humans transport nutrients to all their cells? Living Systems, 3.2: Circulatory Systems Step 2

Human Circulatory System Living Systems, 3.2: Circulatory Systems Step 3

Circulatory and Respiratory System Living Systems, 3.2: Circulatory Systems Steps 4–5

Right side of the heart Living Systems, 3.2: Circulatory Systems Step 6

Circulatory System Model Construct a model of the right side of the heart. Label the "right ventricle" bottles and "lung blood" and "body blood" containers using the self-stick notes. Fill all the containers halfway with water. Valves insert securely in the ends of the rigid pipes. Flexible hoses fit over the ends of the pipes. Materials: The right ventricle of the heart Blood in body Blood in lungs 2 heart valves Clips used to help secure hoses Veins and arteries Living Systems, 3.2: Circulatory System Steps 7–8

The Human Circulatory System Living Systems, 3.2: Circulatory Systems Steps 11–14

Circulatory System Model Construct the circulatory system model. Label the "right ventricle” and “left ventricle” bottles and "lung blood" and "body blood" containers using the self-stick notes. Fill all the containers halfway with water. Valves insert securely in the ends of the rigid pipes. Flexible hoses fit over the ends of the pipes. Materials: The right and left ventricle of the heart Blood in body Blood in lungs 4 heart valves Clips used to help secure hoses Veins and arteries Living Systems, 3.2: Circulatory System Steps 15–17

Sense-Making Discussion Living Systems, 3.2: Circulatory Systems Step 18

Vocabulary Review circulatory system the system of blood vessels and organs that transports blood to all the cells in the body artery a blood vessel that carries blood from the heart to the body vein a blood vessel that carries blood from the body to the heart capillary the smallest blood vessel. Gases, nutrients, and wastes are exchanged between capillaries and cells. heart a muscular organ that pumps blood Living Systems, 3.2: Circulatory Systems Step 19

Vocabulary Review right atrium the upper chamber on the right side of the heart right ventricle the lower chamber on the right side of the heart lung the organ in animals where gases, such as oxygen and carbon dioxide, pass between the atmosphere and the blood left atrium the upper chamber on the left side of the heart left ventricle the lower chamber on the left side of the heart heart valve a structure in the heart that acts like a one-way gate, ensuring that blood flows in one direction through the circulatory system Living Systems, 3.2: Circulatory Systems Step 19

Focus Question How do humans transport nutrients to all their cells? Living Systems, 3.2: Circulatory Systems Step 20

Response Sheet Living Systems, 3.2: Circulatory Systems Step 21

How do humans transport nutrients to all their cells? Wrap-Up/Warm-Up How do humans transport nutrients to all their cells? Pair up with a partner to compare your answer to the focus question. Draw a line of learning under your answer and add any additional information below the line. Living Systems, 3.2: Circulatory Systems Step 22

Mammalian Circulatory System Living Systems, 3.2: Circulatory Systems Step 23

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