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Master human anatomy! Review the circulatory and respiratory systems with this engaging 7th-grade science worksheet.

How does blood flow through the heart? First: Label the parts of the heart and the two locations where blood is pumped.Word List:Right AtriumLeft AtriumRight VentricleLeft VentricleLungsBodyValveVena CavaAorta Lungs Aorta Vena Cava Valve Left Atrium Right Atrium Left Ventricle Right Ventricle Body How does blood flow through the heart? Second: Identify the direction of blood flow throughout the human body.Direction Options:Body into HeartHeart into BodyLungs into HeartHeart into Lungs Heart into Lungs Lungs into Heart Heart into Body Body into Heart Oxygen and carbon dioxide are transported between the blood and interstitial fluid by way of... exocytosis and endocytosis by endothelial cells diffusion from areas of higher concentration to lower concentration pinocytosis using fluid-filled vesicles What part of blood is responsible for carrying oxygen and carbon dioxide to body cells? Red Blood Cells White Blood Cells Platelets What is the respiratory system ? The respiratory system is the system that helps circulate our blood . The respiratory system is the system that takes in oxygen and takes the unneeded particles and creates carbon dioxide. The respiratory system is a system that is similar to the circulatory system. Oxygen from the air enters the blood stream at what location? Pulmonary Vein Paranasal Sinuses Alveoli What are the parts of the respiratory system? Label the parts of the respiratory system?Word bank:TracheaBronchusAlveoliNasal CavityMouthDiaphragmLung Nasal Cavity Mouth Trachea Bronchus Alveoli Lung Diaphragm How many chambers are there in the human heart? 4 2 5 What is the main function of the heart ? The heart is the control centers for all body activities. The heart circulates blood and oxygen throughout the body. The heart gets rid of the wastes in your body produced by homeostasis. Where can you find your pulse? Wrist and neck Ankle and face Elbow and knee What is Heart Rate? The maximum number of heartbeats in a given amount of time Number of times your heart beats per minute while resting Is the number of heartbeats per unit of time The pressure pushing on the walls of arteries as a result of the heart beat is called clot heart valve defect blood pressure Normal blood pressure is... 120 140 100 FILL IN THE BLANK FOR THE FOLLOWING PASSAGE ABOUT BLOOD PRESSURE. BLOOD PRESSURE IS CAUSED BY THE FORCE OF BLOOD PUSHING ON ARTERIES EVERY TIME THE HEART BEATS. SYSTOLIC PRESSURE IS THE MAXIMUM AMOUNT OF PRESSURE DURING A HEART BEAT AND BLOOD IS BEING FORCED OUT OF THE HEART. DIASTOLIC PRESSURE IS THE MINIMUM AMOUNT OF PRESSURE AFTER A HEART BEAT WHEN THE HEART IS REFILLING WITH BLOOD. True or False: Plaque forms when high blood pressure causes a tear in an artery and that artery begins to get clogged with white blood cells, cholesterol, and other fatty substances. True False What causes your heart rate to change? Complete the lists for reasons that would cause your heart rates to increase and decrease. Increased Heart Rate Exercise Stress Being Nervous Being Scared Drinking Caffeine Decrease Heart Rate Sleeping Sitting down Taking a few deep breathes Relaxing Fill in the blanks of the reading passage about how your lungs work. When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. As your lungs expand, air is sucked in through your nose or mouth. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs). Through the very thin walls of the alveoli, oxygen from the air passes to the surrounding capillaries (blood vessels). Red blood cells helps move oxygen from the air sacs to the blood. At the same time, carbon dioxide moves from the capillaries into the air sacs.When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity. As the space in the chest cavity gets smaller, air rich in carbon dioxide is forced out of your lungs and windpipe, and then out of your nose or mouth.