Objectives Identify the major tissues found in the body Compare an organ with an organ system...
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Transcript of Objectives Identify the major tissues found in the body Compare an organ with an organ system...
![Page 1: Objectives Identify the major tissues found in the body Compare an organ with an organ system Describe a major function of each organ system.](https://reader036.fdocuments.in/reader036/viewer/2022082819/56649f385503460f94c54c46/html5/thumbnails/1.jpg)
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Objectives
• Identify the major tissues found in the body
• Compare an organ with an organ system
• Describe a major function of each organ system.
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How does a person stay alive even though the environment around him or her is so cold?
• The answer:– Your body did not allow its internal
conditions to change enough to stop the cells from working properly.
– The maintenance of a stable internal environment is called homeostasis
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– Homeostasis is not an easy task.
– Your body must perform many different “jobs” to maintain homeostasis
– Cells are organized into different “teams” to perform these jobs.
– Each cell in your body has a specific job in maintaining homeostasis.
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• A group of similar cells working together forms a tissue.
• Your body contains four main types of tissue
•Epithelial tissue•Connective tissue•Muscle tissue•Nervous tissue
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• Covers and protects underlying issue.
• When you look at the surface of your skin, you see epithelial tissue.
• The cells stick tightly and form a continuous sheet.
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• Sends electrical signals through the body
• It is found in the brain, nerves, and sense organs
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• Is made of cells that can contract and relax to produce movement.
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• Joins, supports, protects, insulates, nourishes, and cushions organs.
• It also keeps organs from falling apart
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• Two or more tissues working together from an organ.
• One type of tissue alone cannot do all the things that several types working together can do.
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The stomach is an organ• The four types of tissue work together so that the
stomach can carry out digestion
– Nervous tissue in the stomach partly controls the production of acids that aid in the digestion of food. Nervous tissue signals when the stomach is full.
– Epithelial tissue lines the stomach.
– Layers of muscle tissue break up stomach contents
– Blood and a connective tissue called collagen are found in the wall of the stomach.
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Organs Form Organs Form SystemsSystems
• Your stomach does much to help you digest your food, but it doesn’t do it all.
• It works together with other organs, such as the small intestine and large intestine, to digest your food.
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• Integumentary system– Skin, hair, and nails protect underlying tissue
• Muscular system– Skeletal muscles move your bones
• Skeletal system– Bones provide a frame to support and protect
body parts
• Cardiovascular system– Heart pumps blood through all your blood vessels
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• Respiratory system– Lungs absorb oxygen and release carbon
dioxide
• Urinary system– Removes wastes from the blood and
regulates the body’s fluids
• Reproductive system (male)– Produces and delivers sperm
• Reproductive system (female)– Produces eggs and nourishes and shelters
the unborn baby
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• Nervous system– Receives and sends electrical messages throughout
the body
• Lymphatic system– Returns leaked fluids to blood vessels. It also
helps you get rid of germs that can ham you
• Digestive system– Breaks down the food you eat into nutrients that
can be absorbed into your body.
• Endocrine system– Glands regulate body functions by sending out
chemical messengers. The ovaries, in females, and testes, in males, are part of this system
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• Make a chart that lists the major organ systems and their functions.