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Human Body Systems.

Published byEvelyn Stevenson Modified over 5 years ago

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Presentation on theme: "Human Body Systems."— Presentation transcript:

1 Human Body Systems

2 Learning Objectives Describe how the human body is organized
Explain how organs work together in an organ system

3 Organization of the Body
Teamwork!

4 Levels of Organization
Cells Tissues Organs Organ Systems Organism

5 Cells The basic unit of all living things.
Specialized cells perform a particular function.

6 Tissues Tissues are groups of similar cells that perform a single function. 4 Types: Connective Muscle Nervous Epithelial Epithelial Adipose Cardiac Muscle Skeletal Muscle Neural Tissue Cartilage

7 Organs An organ is a group of tissues that work together to perform a complex function. Examples: Heart Eye Brain Stomach Lungs

8 Organ Systems A group of organs that perform closely related functions.

9 11 Organ Systems Nervous Respiratory Integumentary Digestive
Excretory Skeletal Muscular Circulatory Endocrine Reproductive Lymphatic/Immune

10 Organism An individual animal, plant or single-celled life form

11 YouTube Amoeba Sisters Human Body Systems

12 STOP HERE!

13 Homeostasis The organ systems are working constantly to maintain a controlled, stable environment = Homeostasis. Homeostasis in the body is maintained by feedback loops.

14 Feedback Loop Positive and negative feedback

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