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Body System/Genetics
Term | Definition |
---|---|
Gene | A basic physical unit made up of DNA that is passed from parents to their children. |
Nervous System | Body system including brain and spinal cord; makes you who you are; send messages to brain, involuntary! |
Respiratory System | Body system providing oxygen; eliminating waste (carbon dioxide!) main organ - lung, diaphragm |
Skeletal System | Body system providing protection of organ; support of body, bones. |
DNA | Short for deoxyribonucleic acid, the name of the molecule that carries genetic instructions for all living things. |
Inherited Trait | Features that are passed down from parents to their children and determined by genetics. Examples are hair color, eye color, height. |
Learned Behavior | A behavior that is learned by the offspring and not a part of their genes. Examples are intelligence, sports ability, and favorite things. |
Cell | the basic structural and functional unit |
Tissue | a family of cells working together |
Organs | tissues working with other tissues |
Muscular System | The body system made of muscle tissue that allows the body to move. |
organism | an entire living thing that carries our all the basic life |
Smooth Muscle | Also called involuntary muscles, these muscles are usually in sheets, or layers, with one layer of muscle behind the other. You can't control this type of muscle. |
Cardiac Muscle | The thick muscles of the heart that contracts to pump blood out and then relaxes to let blood back in after it has circulated through the body |
Brain | The main part of the nervous system in all mammals. |
Small Intestine | A long tube that’s packed inside you beneath your stomach. This organ breaks down the food mixture even more so your body can absorb all the vitamins, minerals, proteins, carbohydrates, and fats. |
Gastric Juices | Acid that come out of the stomach wall to break down food and also help kill bacteria that might be in the food. |
Esophagus | A stretchy pipe that's about 10 inches long and moves food from the back of your throat to your stomach. But also at the back of your throat is your windpipe, which allows air to come in and out of your body. |
Digestive System | The body system that allows your body to get the nutrients and energy it needs from the food you eat. |
Stomach | This organ end of the esophagus, is a stretchy sack shaped like the letter J. It has three important jobs: to store the food you've eaten, to break down the food into a liquid mixture, and to slowly empty that mixture into the small intestine. |
Unicellular Organism | A single celled organism, or an organism made of only one cell that performs all the cell needs for life |
bacteria | single cell/unicellular! ABLE to do ALL things with one CELL |
amoeba | single cell/unicellular! ABLE to do all things with one cell |
Multicellular Organism | specialized! more than one cell! humans! plants! animals! |
Unicellular and multicellular | MUST BE ABLE TO ELIMINATE WASTE |
Circulatory System | The circulatory system is an organ system that passes nutrients, gases, hormones, blood cells, etc.TRANSPORT blood |
Cardiovascular system | transport blood/provide nutrients/transport oxygen |
25. Lungs – | The main organ in the respiratory system, this organ takes oxygen into the body and carbon dioxide is breathed out. |