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Is the process by which the body's internal environment is kept stable in spite of changes in the external environment.
Ex. Sweating and Shivering |
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- Cells
- Tissues
- Organs
- Organ systems
- Organism |
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Are the building blocks of living things.
Each cell has a specific job:
- Brain Cells
- Bone Cells
- Blood Cells
- Disease Fighting Cells
- Nerve Cells
- Muscle Cells |
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The cells that make up your body are organized into tissues.
Four basic types of tissues:
- Muscle
- Connective
- Nerve
- Epithelial |
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Is made of cells that can contract and relax to produce movement.
There are three kinds of muscle tissue:
- Skeletal Muscle Tissue: (voluntary muscle) will contract and move parts of your body when you wish.
- You have no control over Smooth Muscle Tissue (involuntary muscle), it lines the walls of your organs inside your body.
- Cardiac Muscle Tissue: (heard muscle tissue) is only found in the heart. |
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Joins, supports, protects, insulates, nourishes, and cushions organs. It also keeps organs for falling apart.
The four types of Connective Tissue:
- Areolar
- Bones
- Blood
- Fat |
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| NERVE TISSUE (NERVOUS TISSUE) |
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| Carries electrical messages back and forth between the brain, spinal cord, and all other parts of your body. |
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| Covers and protects underlying tissue. It lines the surface of your skin and the cavities, or hollow spaces, of the mouth, throat, ears, stomach, and other parts. |
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Different types of tissues combine to form organs:
An Organ is a group of different tissues with a specific job.
Ex: Heart, Stomach, and Brain |
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An Organ System is a group of organs that work together to perform a specific job.
Ex: Circulatory System, Nervous System, Digestive System, etc... |
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| Consists of skin, hair, and nails. It is responsible for protecting underlying tissue. |
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| Consists of all of the muscles in the body. It is responsible for moving your bones. |
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| Consists of bones, cartilage, ligaments, and tendons. It is responsible for protecting organs, providing a frame to support the body, and making red blood cells. |
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| Consists of the heart, blood vessels, and blood. It is responsible for transporting oxygen and nutrients to your cells and removing carbon dioxide and other forms of waste from your cells. |
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| Consists of the brain, spinal cord, and nerves. It is responsible for receiving and sending electrical messages throughout the body. |
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| Consists of lymph nodes, lymphatic vessels, spleen, and tonsils. It is responsible for returning leaked fluids to blood vessels. It also helps get rid of germs that can harm you. |
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| Consists of the stomach, small intestines, large intestines, and colon. It breaks down the food you eat into nutrients that can be absorbed into your body. |
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| Consists of the kidneys, urinary bladder, and urethra. It is responsible for removing waste from the blood and regulating the body's fluids. |
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| Consists of the adrenal gland, pancreas, ovaries, testes, pituitary gland. These glands regulate body functions by sending out chemical messengers. |
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| Consists of the pharynx, larynx, trachea, bronchus, lung, and diaphragm. It is responsible for absorbing oxygen and releasing carbon dioxide. |
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