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Alyssa Hernandez
Sarah Maglaya
Arantxa Manuel
Nikka Mendoza
Angelica Monillas

1NU01

CHAPTER 1 - The Human Organism CHAPTER 2 - The Chemical Basis of Life CHAPTER 3 - Cell Structures and Their Functions CHAPTER 4 - Tissues, Glands, and Membranes CHAPTER 5 - Integumentary System CHAPTER 6 - Histology and Physiology of Bones CHAPTER 7 - Anatomy of Bones and Joints ask archive theme credit next page

URINARY SYSTEM (Chap. 23)

Parts of the Urinary Tract

You drink, you pee. But urine is more than just that drink you had a few hours ago. The body produces pee as a way to get rid of waste and extra water that it doesn’t need. Before leaving your body, urine travels through the urinary tract.

The urinary tract is a pathway that includes the:

The kidneys are key players in the urinary tract. They do two important jobs — filter waste from the blood and produce pee to get rid of it. If they didn’t do this, toxins (bad stuff) would quickly build up in your body and make you sick. That’s why you hear about people getting kidney transplants sometimes. You need at least one working kidney to be healthy.

You might wonder how your body ends up with waste it needs to get rid of. Body processes such as digestion and metabolism (when the body turns food into energy) produce wastes, or byproducts. The body takes what it needs, but the waste has to go somewhere. Thanks to the kidneys and pee, it has a way to get out.

When you’re asked to give a urine sample during a doctor’s visit, the results reveal how well your two kidneys are working. For example, white blood cells in the urine can be a sign of an infection.

Pee also is a way for your body to keep the right amount of water. Did you ever notice that if you drink a lot, you pee more and the pee is pale yellow? That’s because your body is getting rid of extra water and your pee has more water in it than usual.

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URINARY SYSTEM

URINARY SYSTEM

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IMMUNITY

Inside your body there is an amazing protectio­n mechanism called the immune system. It is designed to defend you against millions of bacteria, microbes, viruses, toxins and parasites that would love to invade your body. To understand the power of the immune system, all that you have to do is look at what happens to anything once it dies. That sounds gross, but it does show you something very important about your immune system.


Let’s start at the beginning. What does it mean when someone says “I feel sick today?” What is a disease? By understanding the different kinds of diseases it is possible to see what types of disease the immune system helps you handle.

When you “get sick”, your body is not able to work properly or at its full potential. There are many different ways for you to get sick — here are some of them:

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PEYER’S PATCH

PEYER’S PATCH

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