Specialized cells are cells that have a specific. Similar specialized cells working together create.

Transcription

1 Body Systems

2 Review Specialized cells are cells that have a specific. Similar specialized cells working together create. Similar specialized tissues working together create. Organs working together create. Organ systems working together create an. There are 4 different types of tissues in the human body,,,,

3 Introduction to Body Systems (organ systems) If you have ever experienced any kind of stress, you would know from your natural response to it that your organ systems work together as a whole. In other words, your organ systems are interdependent. For example, one of the immediate effects of stress is that your muscles become tense. This can trigger the heart, a part of your circulatory system, to beat faster, so it pumps blood more quickly to the surface of the skin. As a result, you feel warmer. Tense muscles over a period of time can also lead to aches, pains, and exhaustion. After reading this, what does it mean that our organ systems are interdependent?

4 Indigenous Knowledge The interdependence of systems can be viewed in a broader way through Indigenous knowledges. Good health is when your mind, heart, body, and spirit are in balance (mental, emotional, physical, and spiritual harmony). The medicine wheel indicates the connections and interactions between mental, emotional, physical, and spiritual aspects of a person s being. There are many ways of representing the medicine wheel.

5 Explore What are the physical, mental, emotional, and spiritual effects when you feel tense? Listen to the next few exercises and follow along.

6 How Your Body is Organized Many parts of your body were involved in the exercises you just completed. These included your skin, bones, heart, lungs, mouth, and stomach. What other examples can you think of? When scientists investigate how the body works, they find that none of your body parts functions on its own. Each part is an organ, which is a particular arrangement of tissues that have a special function. A group of organs form a body system, called an organ system. The organs that make up each organ system work together to perform a certain task or function.

7 5 Main Organ Systems

8 Circulatory System Structures: - Heart - Blood - Arteries - Viens

9 Respiratory System Structures: - Nose - Mouth - Trachea - Bronchi - Lungs

10 Digestive System Structures - Mouth - Esophagus - Stomach - Liver - Intestines

11 Nervous System Structures: - Brain - Spinal Cord - Nerves - Eyes - Ears - Other sense organs (hand, nose, etc.)

12 Excretory System Structures: - Kidneys - Bladder - Lungs - Skin

13 Working Together for Health All your organ systems work together as a single unit for a common purpose: to support and maintain your life. This idea or working together as a unified, purposeful unit goes even deeper than systems. Each of your body s systems contains organs. The organs that make up each body system work together to perform a certain task or function. For example, the organs that make up the respiratory system work together to provide your body with the oxygen it needs, while ridding it of carbon dioxide. All of your organs support and maintain the healthy functioning of the system which they are a part. The organs work in harmony for a healthy system.

14 Tissues and Organs As we reviewed earlier, there are 4 groups of tissues in humans and each human organ is made up of a group of tissues that work together. For example, your heart is an organ made up of connective tissue, nerve tissue, and muscle tissue. Different organs are composed of different kinds and amounts of tissues. It all depends on the role or function that the organ serves.

15 Individual Questions 1. After seeing 5 different organ systems in the human body, does any one system seem to be more important than any of the others? Explain. 2. Do you think you could stay healthy if any one of these systems were damaged, diseased, or missing? Why or why not? 3. What does the title Working Together for Health mean to you?