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Grade 8 Science Unit 4: “Cells, Tissues, Organs & Systems”Chapter 11: “Human body cells are organized as tissues, organs and systems.”
Systems... All systems have the following characteristics: Made up of individual parts that work together as a whole
Often connected to one or more systemsIf one part of a system is missing or damaged, the system will not function well or may not function at all.
Levels of Organizationcells tissues Organs Organ systems organisms
Tissues Groups of similar cells Found in all multicellular organisms Ex. Muscle tissue, nerve tissue, epithelial tissue, etc.
Organs Groups of tissues. Made up of two or more types of tissues. They are distinct structures that perform specific functions.
Ex. Lungs, kidneys, heart, etc.
Organ Systems pg A group of organs that perform activities that help the body as a whole. 6 examples of organ systems are...
1. Digestive System Consists of: Mouth Liver Esophagus Gall Bladder Stomach Pancreas Small Intestine Large Intestine
Function: To take in and break down food, absorb nutrients, and eliminate solid waste.
2. Circulatory System Consists of: Heart Arteries, Veins Capillaries
Function: To transport blood, nutrients (chemicals needed for survival), gases and wastes.
3. Nervous System Consists of: Brain Spinal cord Nerves Sense organs
Function: To detect changes in the environment and to signal these changes to the body which then carries out a response.
4. Respiratory System Consists of: Nasal cavity Trachea Lungs
Function: To control breathing, and exchange gases in lungs and tissues.
5. Excretory System Consists of: Lungs Kidneys Urinary bladder
Function: To remove liquid and gas wastes from the body
6. Muscular System Consists of: Muscle tissue connected to bones throughout the body.
Function: To work with the bones to move body parts
Cells to Organs… What Makes up YOU!
Organs D. Crowley, 2007.
Systems of Our Body Keeping us healthy!. Circulatory System Brings blood to all parts Veins and arteries Heart and lungs.
Human Body Systems Individual Netbook Notes!! Science 7.
HUMAN BODY SYSTEMS.
System System System Structures Structures Structures Functions
SUMMARY OF ORGAN SYSTEMS
Don’t Forget... Contestants …Always phrase your answers in the form of a question!
MAJOR ORGAN SYSTEMS IN THE HUMAN BODY
7 th Grade Science. CELLS * The microscopic unit of structure & function of all living things * Most simple level of organization * Examples: Red Blood.
Grade 8 Science “Cells, Tissues, Organs & Systems”
Human Body Systems and Functions
Interdependence in Living Systems
Body Systems 8 th grade notes. Notes A system is a group of parts that work together as a unit to accomplish a common goal.
The Human Body Review.
Function:Secretes hormones & regulates body growth.
Body systems. Circulatory Parts: heart,vascular tissue (artery, vein, capillary) Function: circulate O 2, CO 2, food and wastes thru body.
Human Tissues Noadswood Science, Human Tissues To be able to identify, describe and explain the role of human tissues, organs and organ systems.
Grade 8 Science Unit 4:“Cells, Tissues, Organs & Systems”
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