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Chapter #13

Chapter #13. Respiration and Excretion. Chapter 13.1 Notes. Respiratory system is made of body parts that help with the exchange of gases. Brings in oxygen and removes carbon dioxide. Cellular respiration is a chemical reaction that happens inside cells.

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Chapter #13

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  1. Chapter #13 Respiration and Excretion

  2. Chapter 13.1 Notes • Respiratory system is made of body parts that help with the exchange of gases. Brings in oxygen and removes carbon dioxide. • Cellular respiration is a chemical reaction that happens inside cells. • C6H12O6 + O2 CO2 + H2O • Sugar + oxygen makes carbon dioxide + water

  3. Chapter 13.2 Notes Respiratory Organs • Nose- has hair that trap dust • Nasal Chamber- forms mucus to keep air moist • Trachea-Windpipe • Epiglottis- small flap that covers trachea when you swallow. • Bronchi- 2 short tubes that carry air from trachea to the lungs. • Lungs- 2 soft organs that exchange gases. • Alveoli- are tiny air sacs. Look like grapes (300 million).

  4. Diaphragm sheet like muscle that separates the inside of your chest from your intestines and other organs. Breathing out- ribs in and down. Diaphragm relaxed (up). Lungs squeezed. Breathing in- ribs up and out. Diaphragm contracted (down). Lungs expand.

  5. Chapter 13.3 Notes • Carbon Monoxide (CO) is an odorless, colorless gas sometimes found in the air. It is more easily picked up by your red blood cells than oxygen. • Pneumonia is a lung disease caused by bacteria or virus. Causes lung tissue to form extra mucus. Communicable or contagious.

  6. Emphysema is a lung disease that results in the breakdown of alveoli. People with emphysema seems out of breath. Caused by smoking and air pollution. Not communicable.

  7. Chapter 13.4 Notes • Excretory system- is made up of organs that rid the body of liquid wastes. • Urea- is a waste that results from the breakdown of body protein. • Urine waste liquid that reaches the ureter about 1 liter per day. • Nephron- is a tiny filter unit of the kidney.

  8. Kidneys- filter blood 200 liters per day • Ureter is a tube that carries wastes from a kidney to the urinary bladder. • Urinary bladder- is a sac that stores liquid wastes removed from the kidneys.

  9. Skin 3 Jobs • Protect the body from infection • Sense organ • Excretion of salt and water

  10. Work Cited • “Respiratory system”. February 25, 2007. http://www.east-haven.k12.ct.us/eha/system/system/systemangelicat/systemangelicat%5C.htm • “Excretory system”. February 25, 2007. http://www.tqnyc.org/NYC063547/images/try_excretory_3_good_use.jpg • “Human respiratory system”. February 25, 2007. http://www.east-haven.k12.ct.us/eha/system/system/systemangelicat/respiratorydetail.gif • “Breathing”. February 25, 2007. http://www.geocities.com/flutepower55/breathing.gif • “Emphysema”. February 26, 2007. http://static.howstuffworks.com/gif/emphysema-ga-1.jpg • “Urinary system”. February 26, 2007. http://www.nurse-prescriber.co.uk/education/visual_lib/pp000urin.jpg • “Nephron”. February 26, 2007. http://static.howstuffworks.com/gif/kidney-nephron.jpg • “Skin”. February 26, 2007. http://kidshealth.org/kid/body/images_45364/skin325.gif

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