1. Respiration Respiration System I. I. Respiratory Respiratory System A-The circulatory system gets the oxygen oxygen it provides to the cells cells from the respiratory system. Part 4

2. 1. oxygen cellular respirationnutrients release waste carbondioxide water 1. Cells use this oxygen in the process of cellular respiration, in which nutrients from digested food combine with the oxygen to release energy and produce the waste materials carbon dioxide and water.

3. B. B. Respiration Respiration brings oxygen from the air to the blood, and returns carbon carbon dioxide from the blood to the air air. C. C. Path of air air through respiratory respiratory system.

4. first nosecleaned warmed 1- Air first enters the nose were it is cleaned and warmed. Clean trachea windpipe 2- Clean air is now passed through the trachea or windpipe.

5. 3- The air branches branches off to the lungs lungs through tubes tubes called bronchi bronchi. 4- The bronchi bronchi branch into smaller & tubes call Bronchiole at the end of these tubes are tiny air air sacs sacs, called alveoli alveoli that are surrounded by capillaries capillaries.

6. a-exchanged into CO 2 diffusion exhaled a- Here gases are exchanged; oxygen into the blood and CO 2 out of the blood by the process of diffusion and then exhaled out.

7. Nose Mouth Bronchi The Respiratory System Diaphragm Nasal passage Trachea Larynx Alveoli Lungs Nostril

8. Nose Mouth Larynx Lung Bronchus Diaphragm Pharynx Trachea Bronchiole Alveoli The Respiratory System

10. II-The II-The Excretory Excretory System A-Wastes are removed from the blood blood, and the body body, by the excretory excretory system. It consists of the lungs lungs, skin, kidneys kidneys, and liver liver. 1. The lungs lungs rid the body CO 2 CO 2 & H2OH2OH2OH2O vapor each time you exhale exhale.

11. 2. The skin skin gets rid of wastes wastes when you perspire perspire. Perspiration = liquid liquid waste consisting of water water and salts salts. 3.The kidneys = maintain a proper balance of water and minerals. The kidneys, remove excess water, salts, and urea from the blood. This fluid is called urine.

12. Urethra Bladder Kidney Kidney Artery Vein Ureter Ureter

14. Pore Surface of skin Outer layer of skin Inner layer of skin Sweat gland Tube of the sweat gland

15. III- Metabolism: Metabolism: is the sum of all the chemical reactions that take place in your body. {Take in food, break it down, and use the energy in it, your build and repair tissues; you store fat.}

16. A- Metabolism can be influenced by hormones, exercise, diet, and aging. 1. 1. Exercise increases metabolism because cells need more oxygen. When you eat too much, your metabolism stores the excess as fat. As you reach old age, your metabolism slows.

17. IV. The Reproductive System The job of the reproductive system is the production of offspring. There are two human reproductive systems, male and female. A- Male. The male reproductive system consists of the testes, penis, and sperm ducts. The testes produce sperm cells, the male sex cells. 1. During reproduction, these cells pass through tubes called sperm ducts, where they mix with a sugary fluid to form semen. The semen is delivered through the penis into the female's reproductive system.

18. Bladder Seminal gland Prostate gland Vas deference Epididymis Testes Penis Male Reproductive System

19. B- Female. Making up the female reproductive system are the ovaries, oviducts, uterus, and vagina. The ovaries produce egg cells, the female reproductive cells. 1. Once a month, an egg cell leaves an ovary and travels through one of the oviducts to the uterus, or womb. If sperm cells are present in the oviduct, fertilization may take place. ???

20. 2. After fertilization, the fertilized egg attaches itself to the uterus. At the end of nine months birth takes place, and the offspring emerges through the vagina, or birth canal. The newborn baby may be fed milk produced by the mother's mammary glands, or breasts.

21. Female Reproductive system Oviduct Ovaries Uterus Cervix Vagina