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Choosing Good Health
Grade 6 chapters 3 and 4
| Term | Definition |
|---|---|
| placenta | served as your lungs, kidneys, and intestines before you were born |
| umbilical cord | carried oxygen and nutrients from your mother's body to yours in the womb |
| tissues | made up of similar cells |
| organs | made up of similar tissues |
| systems | made up of similar organs |
| nucleus | control center of the cell |
| cell | basic unit of the human body |
| organelles | laborers in the cell that perform many chemical reactions and functions |
| cytoplasm | thick fluid inside a cell |
| cell membrane | outer layer of the cell |
| immovable | joints that do not allow movement |
| cartilage | tough, solid tissue from which your joints are made |
| arthritis | degenerative disease that breaks down the structure of a joint |
| 206 | number of bones in your body |
| circulatory | system that transports nutrients, water, and oxygen to every living cell in your body |
| nervous | system that sends and receives messages to and from other body systems |
| plaque | fatty deposits in an artery which restrict the flow of blood |
| caffeine | drug that may be harmful to the body during the growing years |
| muscle tone | muscle's ability to maintain a slight contraction |
| diaphragm | dome-shaped muscle responsible for breathing |
| osteoporosis | disease where bones become brittle and break down |
| skeletal | system that provides your body with support and rigidity |
| origin | point where a muscle is anchored to an immovable part of the body |
| nutrients | substances your body need to function properly |
| muscular | system responsible for all movement |
| cholesterol | fatty substance in the blood |
| aerobics | exercises that increase your circulatory system's ability to transport and process oxygen |
| alveoli | tiny air sacs in the lung |
| insertion | point where a muscle is attached to a movable part of the body |
| nervous | system that controls all body systems; sends and controls messages |
| narrow | fatty substance inside a long bone |
| respiratory | system that provides the body with oxygen and eliminates carbon dioxide |
| womb | place inside your mother's body where you grew and developed |
| pineal | gland that is your alarm clock |
| gonads | reproducing glands |
| adrenals | emergency energy boosters |
| master gland | pituitary |
| islets of Langerhans | sugar supervisors |
| thyroid | gland that is the chemical reaction controller |