Terms : Hide Images
| 7709384730 | organ | This is made of a collection of tissues that perform a specific function in the body. |  | 0 |
| 7709384731 | function | This refers to the specialized activities performed by an organ or body system. Ex. The liver removes toxins from the blood. | 1 | |
| 7709384732 | structure | This is the way an organ is made up: it's shape, types of tissues, or special features it has. Ex. The stomach is stretchy so that it can hold food. |  | 2 |
| 7709384733 | body system | This is a group of organs working together to perform a certain function. Ex. digestive |  | 3 |
| 7709384734 | cardiovascular system | This is a closed circulatory system in most vertebrates that includes one or more hearts with a branching network of arteries, capillaries, and veins. |  | 4 |
| 7709384735 | digestive system | This is a system of organs working together for taking in food, digesting it, and absorbing nutrients. |  | 5 |
| 7709384736 | excretory system | This is a system of specialized organs responsible for removing excess water, waste products, and toxins out of the body. |  | 6 |
| 7709384737 | musculoskeletal system | This is a system of muscles, tendons, ligaments, bones, joints and related tissues that move the body and support its structure and form. |  | 7 |
| 7709384738 | respiratory system | This is a system of organs that work together to take oxygen into the body and to remove carbon dioxide from the body. |  | 8 |
| 7709384739 | nervous system | This is an organ system that coordinates and controls the actions of internal organs and body systems by receiving and processing sensory information from the surrounding environment. |  | 9 |
| 7709384740 | tissue | In the body of a multicellular organism, this is a group of similar cells that work together to carry out a specific function. |  | 10 |
| 7709384741 | teeth | These digestive system structures begin the process of mechanical digestion. |  | 11 |
| 7709384742 | kidneys | These excretory system organs remove wastes from the blood and transfer them into urine. |  | 12 |
| 7709384743 | small intestine | This digestive system organ is where nutrients are absorbed from food and go into the blood here. |  | 13 |
| 7709384744 | rectum | This is the end of the digestive system and holds solid waste before it is expelled. | 14 | |
| 7709384745 | pancreas | This digestive system organ produces chemicals, such as digestive enzymes, that help digest food. |  | 15 |
| 7709384746 | trachea | This respiratory system tube connects the throat and nose to the bronchial tubes. |  | 16 |
| 7709384747 | alveoli | These are the tiny sacs in the respiratory system where the exchange of oxygen and carbon dioxide takes place. |  | 17 |
| 7709384748 | brain | This nervous system organ signals the body to react to changes in the environment, such as danger or the smell of food. |  | 18 |
| 7709384749 | nerves | These organs sense the outside world and communicate with the rest of the body's systems. |  | 19 |
| 7709384750 | ribcage | This musculoskeletal feature protects the lungs and supports breathing. |  | 20 |
| 7709384751 | bladder | This excretory system organ holds urine before it is released from the body. |  | 21 |
| 7709384752 | heart | This cardiovascular pump works every minute of life. |  | 22 |
| 7709384753 | veins | These blood vessels carry blood toward the heart. |  | 23 |
| 7709384754 | esophagus | This digestive system organ moves food from the mouth into the stomach. |  | 24 |
| 7709384755 | stomach | This digestive organ is a stretchy muscular sac holds food. |  | 25 |
| 7709384756 | urethra | In the excretory system, urine is eliminated from the body through this tube. | 26 | |
| 7709384757 | large intestine | This digestive system organ absorbs water from food, stores wastes, and eventually eliminates wastes from the body. |  | 27 |
| 7709384758 | liver | This digestive system organ produces bile, which helps digest fats, breaks down toxins, and regulates cholesterol and sugar in the blood. |  | 28 |
| 7709384759 | muscles | These organs contract and pull on bones to help the body move. |  | 29 |
| 7709384760 | nose and mouth | In the respiratory system, air enters the body here. |  | 30 |
| 7709384761 | bronchial tubes | In the respiratory system, air passes through these just before it reaches the lungs. |  | 31 |
| 7709384762 | lungs | These large respiratory system organs are where oxygen is exchanged between the blood and the circulatory system. These expand during inhalation and contract during exhalation. |  | 32 |
| 7709384763 | spinal cord | This is a bundle of nerves that connects your brain to all the rest of your body. |  | 33 |
| 7709384764 | long bones | These strong organs provide support for the body and are where blood cells are produced. | 34 | |
| 7709384765 | spinal column | This musculoskeletal system feature protects the spinal cord and support the head. |  | 35 |
| 7709384766 | ureters | These excretory system organs are tubes that urine passes through from the kidneys to the bladder. |  | 36 |
| 7709384767 | arteries | These blood vessels carry blood away from the heart. |  | 37 |
| 7709384768 | capillaries | In these tiniest blood vessels blood and organs exchange nutrients and waste. |  | 38 |
| 7709384802 | organization of human body | body > system > organ > tissue > cell |  | 39 |
