Circulation Flashcards
(10 cards)
The circulatory system is the delivery and pickup system of the body. Oxygen is picked up by the capillaries that surround the ______ in the _____, sent to the heart and then on to the rest of the body. Oxygen does not dissolve well in the liquid part of blood. Most of it is carried very efficiently because it joins with _____, a chemical found in ___ blood cells.
Air Sacs. Lungs. Hemoglobin. Red.
Blood contains about half cells, the other half is a liquid called what?
Plasma.
Blood leaves the heart in _____. They are muscular and have thick, elastic walls. Every time the heart pumps these vessels expand (they can do this because the walls have _____ tissue). We feel this as the _____. Blood returns to the heart in _____.
Arteries. Elastic. Pulse. Veins.
What are the functions of: Aorta? Right Atrium? Left Atrium? Left Ventricle? Right Ventricle? Valves? Pulmonary Artery? Pulmonary Vein?
Aorta: Send oxygen-rich blood to the body. Right Atrium: Collect oxygen-poor blood from body. Left Atrium: Take oxygen-rich blood from the lungs. Left Ventricle: Take oxygen-rich blood to the right ventricle. Right Ventricle: Receives blood from the right atrium, and sends oxygen-poor blood to the lungs. Valve: To keep blood flowing in one direction. Pulmonary Artery: Takes oxygen-poor blood to the lungs from the right ventricle. Vena Cava: Bring oxygen-poor blood to the right atrium from the body. Pulmonary Vein: Carries oxygen-rich blood to the left atrium from the lungs.
How do the structures of capillaries, valves in veins, arterioles, and coronary arteries help with their functions.
Capillaries: To let molecules diffuse to and from the bloodstream. Valves: To keep blood flowing in one direction. Arterioles: Regulate how much blood goes into the capillaries, especially during physical activities and digestion. Coronary Arteries: Bring oxygen rich blood back to the heart.
Blood enters through the _____ _____ low in oxygen. It then goes through a valve into the _____ _____. From here it gets pumped past a _____ into the pulmonary _____ and then goes to the right or left _____. Here it unloads _____ _____ and picks up _____. Now the blood returns to the _____ atrium of the heart in the pulmonary _____. From this atrium, blood goes past a _____ into the _____ ventricle. This strong, muscular, thick ventricle pushes the blood all over the body in the ____ where it supplies the cells with _____ and _____ and picks up _____ ____ and other _____ from the cells. Back to the _____ _____ of the heart by way of the vena cava.
Right Atrium, Right Ventricle, Valve, Artery, Aorta, Carbon Dioxide, Oxygen, Left, Vein, Valve, Left, Aorta, Oxygen, Nutrients, Carbon Dioxide, Wastes, Right Atrium.
Why is it important to write a hypothesis before you conduct an experiment? What are two ways to show data more meaningfully?
So that you can see, at the end of the experiment, how different your hypothesis and results were, and if it should be rejected or accepted. A table, or a graph.
What are the functions of Red Blood Cells, White Blood Cells, and Platelets?
Red Blood Cells: To carry oxygen to the body. White Blood Cells: To fight off diseases. Platelets: To cause blood clotting.
Where are red and white blood cells made? Where are white blood cells also made?
Red Marrow. Lymph Glands.
Atherosclerosis occurs when fatty deposits form on the inside of vessels. Which the kind of vessel does atherosclerosis occur? What can decrease the risk of atherosclerosis? What can blockage in the coronaries cause? How about the carotids?
Arteries. Exercise, and a Low-Fat Diet. Heart Attack. Stroke.
