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SYSTEMS
digestive, circulatory, respiratory, musculoskeletal, nervous
| question | Answer |
|---|---|
| The digestive system... | takes in food, digests it(breaks down the food into smaller components) and eliminates the remaining waste. |
| digestive tract... | mouth, esophagus, stomach, large intestine, small intestine, anus |
| accessory organs... | liver, pancreas, gall bladder |
| the digestive tract is lined with... including... | epithelial tissue -- including goblet cells that secrete mucus |
| mucus protects the... | digestive tube from digestive enzymes |
| the mouth breaks down food in two ways... | mechanically(with teeth and tongue) and chemically(with enzymes that break apart molecules of food) |
| Saliva is produced by...and its function... | epithelial tissue -- it softens the food before it is swallowed into the esophagus |
| The esophagus is connected to... | the stomach |
| The esophagus consists of... | smooth muscle tissue |
| peristalsis? | contracts rhythmically to move food downwards into the stomach |
| The stomachs main function | hold food and churn it |
| the stomachs lining contains cells that produce digestive... | enzymes and acids |
| the small intestine... | 6m long, most absorption occurs, goblet cells secrete mucus and nutrients are absorbed through the wall and enter the bloodstream |
| the large intestine... | 1.5 m long, absorbs water from the indigestible food, is excreted as feces from the anus |
| all accessory organs supply digestive... | enzymes |
| liver... | produces bile |
| where is bile stored? | gall bladder |
| what is bile used for? | to break down fat |
| pancreas? | produces insulin |
| what does the pancreas regulate the concentration of? | sugar |
| the circulatory system consists of... | blood, the heart, blood vessels |
| the main function of the circulatory is? | transport nutrients and waste to and from body cells |
| Circulatory regulates? | body temperature |
| the heart pumps the blood... | AWAY through large blood vessels called arteries |
| what are capillaries? | the smallest blood vessels |
| what are veins? and where does the blood eventually return too? | blood flows into larger blood vessels and returns to the heart |
| what is blood a type of... | connective tissue |
| red blood cells transport... | oxygen, throughout the body by hemoglobin |
| white blood cells... | is an infection fighting cells, and is the only blood cells to have a nucleus |
| platelets... | tiny cells that help in blood clotting |
| plasma? | protein-rich liquid that carries the blood cells along |
| the heart is made up of... | cardiac muscle tissue nerve tissue connective tissue |
| where is cardiac muscle tissue found only... | in the heart |
| he muscles and nerves are covered with a smooth layer of | epithelial cells. |
| Hardening or roughening of the inner lining can lead to | heart problems |
| arteries are... | carries blood AWAY from the heart, has thick walls(elastic), blood is under great pressure |
| veins are | carries blood TOWARD the heart, thin walls, blood is under low pressure |
| further from the heart, blood vessels branch out and become.... | smaller |
| arteries and veins are connected by... | very tiny blood vessels called capillaries |
Created by:
SelenaPJS
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