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Circulatory and Respiratory Study Guide. 1. Define circulatory system. System where blood flow transports oxygen throughout the body and sends carbon dioxide to the lungs. 2. What are the 3 parts that make up the circulatory system?. Blood Blood vessels Heart.
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1. Define circulatory system • System where blood flow transports oxygen throughout the body and sends carbon dioxide to the lungs
2. What are the 3 parts that make up the circulatory system? • Blood • Blood vessels • Heart
3. What is the difference between pulmonary and systemic circulation? • Pulmonary – heart to lungs to heart • Systemic – heart to body to heart
4. What are the 3 types of blood vessels? • Arteries • Veins • Capillaries
5. What does an artery do? Vein? • Artery – carries blood AWAY from the heart • Veins – carries blood TO the heart
6. What is the job of the capillaries? How thick are they? • Diffusion of gases • Microscopic – 1 cell thick
8. What is the second largest component of blood? • Red blood cells
9. How many liters of blood do you have? • 4-6 liters
10. What are the different components of blood (4)? • Red blood cells (RBC) • White blood cells (WBC) • Platelets • Plasma
11. What do red blood cells do? • Carry oxygen and carbon dioxide (help of hemoglobin)
12. What is another name for a red blood cell? • erythrocytes
13. What are red blood cells missing that most cells have? • A nucleus
14. What do white blood cells do? • Fight off foreign substances in the body
15. What is another name for a white blood cell? • leukocytes
17. What do platelets do? • Clot the blood
18. Where are red blood cells made? • Bone marrow
21. The sac around the heart is called the ____________. • pericardium
22. What cell organelle is in abundance in hearts cells (makes energy using oxygen)? • Mitochondria
23. What is the job of the heart? • Pump blood throughout the body
24. The 2 upper chambers of the heart are known as _____________. • atria
25. The 2 lower chambers of the heart are known as __________. • Ventricles
27. What is the job of the aorta? • Sends blood to the body; largest artery
28. What part of the heart pumps blood out of the heart? • Ventricles
31. What is responsible for keeping blood from flowing backwards in the heart? • Valves – they also keep blood from flowing the wrong direction in the veins
32. What happens to the person’s heart rate when they exercise? Why? • When you exercise you need more energy. • To make energy, you need more oxygen. • So you start breathing harder and your heart starts pumping faster.
33. What are the following disorders: • Atherosclerosis– plaque buildup in the arteries • Hypertension – high blood pressure; increases the risk of a heart attack • Heart Attack – Atherosclerosis in the arteries; heart muscle dies because deprived of oxygen and nutrients • Stroke – blood clot in the blood vessels to the brain; brain cells die
34. What are the 4 blood types? • A • B • AB • O
37. Which ventricle pumps blood to the body? Lungs? • Left Ventricle to body • Right ventricle to lungs
1. What are the 2 waste products of respiration? Carbon dioxide Water
2. What gas do you take in? • Oxygen
3. The movement of oxygen and carbon dioxide in the lungs occurs by _____________ (passive transport) • Diffusion
4. What is the job of the alveoli? • Gas exchange with the capillaries
5. When you inhale, the diaphragm moves ___________ • Down (contracts), and the lungs expand
6. When you exhale, the diaphragm moves _________ • Up (relaxes) and lungs return to normal
7. What is the pharynx? Throat – place where air and food meet
8. What is the trachea? • Windpipe
9. What is the bronchi? • Tube that connects the trachea to the lungs
10. What is the larynx? • Voicebox
11. What color is the blood when it is full of carbon dioxide? • Dark Red
12. What color is the blood when it is full of oxygen? • Bright Red
13. Where does the exchange of carbon dioxide and oxygen occur in the body? • Between the capillaries and the cells • Between the capillaries and the alveoli (lungs)