1. Topic: Excretory System Aim: Cite specific textual evidence to describe parts & functions of the Excretory System. Do Now: 1.Take out your Excretion ISA. 2.Copy the topic and aim into your notes. 3.Tape the Digestive System Review ISA into your notebook. HW: Digestive System Review ISA Castle Learning Digestive and Circulatory Systems due Tuesday, February 23 rd.

2. Trachea Nose Nasal cavity Pharynx Epiglottis Larynx Bronchus Bronchioles Diaphragm

3. This system represents the excretory system. 1. Describe excretion. 2. Identify some metabolic wastes. CO2, water, urea, salts Identify an excretory organ in the diagram. Skin Lungs Liver Kidneys Removal of metabolic wastes.

4. Process A Process B

5. Exhale CO 2 and H 2 O vaporLungs

6. Sweat glands releases PERSPIRATION Skin

7. Sweat: water, salts and urea

9. Regulates your body temperature –Prevents overheating

12. Did you know… An average person sheds from about 40000 skin cells every minute.

13. Filters nitrogen out of your blood  UREA Liver

14. DETOXIFIES the blood (removes toxins such as drugs and alcohol) https://www.youtube.com/watch?v=FSprnYACYJI

15. Did you know… A liver would be about 3 pounds in an average human and it is rubbery to touch.

17. Filter out urea from your blood Kidneys

18. Regulate the amount of water in your blood.

19. Contains nephrons

21. Produce URINE –Water, salt and urea

22. Did you know… If you eat a lot of red beets, your urine will actually be colored red.

23. Kidneys Ureters Urinary System

24. Urinary bladder http://www.youtube.com/watch?v=uAy5C2YYlbk

25. Urethra

26. Did you know… The average person pees about 3000 times a year. The average person passes 9,202 gallons of urine in his/her lifetime. That’s enough to fill 315 bathtubs.

27. Let’s summarize…Identify the structure. 1.Excrete carbon dioxide and water vapor. 2.Produces urea. 3.Regulates body temperature. 4.Stores urine. 5.Filters urea from the blood. 6.Excretes water, salts and a small amount of urea. 7.Carries urine from the kidneys to the urinary bladder. 8.Regulates the amount of water and other substances in the blood. 9.Transports urine out of the body. 10.Produces urine. 11.Detoxifies the blood. Lungs Liver Skin Kidneys Skin Ureters Kidneys Liver Urinary bladder Kidneys Ureters

34. 1.Identify A, B, and D. 2.Which organ produces urea? 3.What is the function of D? 4.What does organ A excrete? 5.Which organ detoxifies the blood? Lungs Liver Kidney Urea Filter urea from the blood. CO 2, H 2 O Liver

35. 1.Identify structures A, B, C, and D. 2.Which structure produces urine? 3.What is the path of urine? 4.What are the 2 main functions of A? 5. What stores urine? 6. What is the function of D? Kidney Ureter Urinary bladder Urethra Kidneys Kidney, ureters, urinary bladder, urethra Filter the blood Regulate the amount of H2O in blood. Urinary bladder Transport urine out of body.

36. 11. 14. 15. Bronchioles Alveoli Capillary Alveolus 12.

37. Aorta Left atrium Left ventricle Right ventricle Valve Right atrium Inferior Vena Cava Superior Vena Cava Pulmonary arteries Pulmonary veins

38. X Y 1.Identify the structure in the diagram. 2.What process occurs in this structure? 3.Identify the blood vessel surrounding this structure. 4.Identify gas X. 5. Identify gas Y. 6. Identify the process that causes the movement of gases. alveolus gas exchange capillary O2O2 CO 2 diffusion