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3D Elevate Science
Topic 3 Human Body Systems Lesson 4 Managing Materials
| Question | Answer |
|---|---|
| What is the Circulatory System made up of? | the Cardiovascular System and the Lymphatic System |
| What does the Circulatory System do? | it brings nutrients and oxygen to cells; it removes waste products and helps fight off diseases and infections |
| What does the heart do? | it pumps blood throughout the body using various blood vessels |
| What happens with blood during Loop 1 of the Double Loop System? | blood travels from the heart to the lungs, and then back to the heart |
| Describe "Loop 1" in the double Loop System of the Circulatory System. | the right atrium carries oxygen poor blood to the right ventricle; the right ventricle then carries oxygen poor blood to the lungs; the lungs oxygenate blood (oxygen rich blood), which then travels back to the heart |
| What is Pulmonary Circulation? | circulation from the heart, to the lungs and then to the heart again |
| What happens with blood during Loop 2 of the Double Loop System? | blood travels from the heart to the body, then back to the heart |
| Describe "Loop 2" in the double Loop System of the Circulatory System. | the left atrium carries oxygenated blood to the left ventricle; the left ventricle carries oxygenated blood to the body cells; the body cells is where there is oxygen and carbon dioxide exchange- the blood goes back to the heart (the right atrium) |
| What is Systemic Circulation? | circulation from the heart to the body's cells and back to the heart |
| What do red blood cells do? | they carry oxygen from the lungs to the cells; they carry carbon dioxide away from the cells to the lungs |
| What is the Lymphatic System? | it is a network of vessels that remove excess fluid from tissues, and return it to the bloodstream |
| What is the Lymph? | the fluid part of the lymphatic system |
| Describe the lymph. | water, white blood cells, dissolves materials such as glucose |
| Describe/Explain Lymph vessels. | they connect small knobs fo tissues called lymph nodes |
| What are lymph nodes? | they filter the lymph, which traps bacteria and other diseased microorganisms |
| What do blood vessels do? | they connect the heart to the rest of the body |
| What do arteries do? | they carry oxygen rich blood to the body cells |
| What do veins do? | they carry oxygen poor blood back to the heart; have valves to prevent backflow |
| What do capillaries do? | they connect arteries and veins; they allow for substances to diffuse through thin walls |
| What is blood pressure? | the force in which the ventricles contract to push the blood throughout the body |
| What is the respiratory system? | it is the system that takes oxygen into your body and removes carbon dioxide and water from your body |
| What is the path of oxygen being taken in and carbon dioxide being taken out? | the nose/mouth to the pharynx (throat) to the larynx (voice box) to the trachea (windpipe) to the bronchi to the lungs |
| What are bronchi? | they are two passages that direct air into the lungs |
| What are alveoli? | they are tiny sacs of lung tissue where carbon dioxide and oxygen diffuse into and out of |
| What is respiration? | it is the process used to break down glucose for energy |
| Describe breathing. | the exchange of gasses between the inside and outside of the body |
| Explain the breathing process. | the diaphragm contracts (goes down) when you breathe in; the diaphragm relaxes (moves back up) when you breathe out |
| What is the excretory system? | it is the system that removes chemical waste from the body (water, carbon dioxide and toxins) |
| What do the kidneys do? | they are two bean-shaped organs that filter bood and regulate the amount of water in the body |
| What do nephrons do? | they are tiny tubes in the kidneys that filter blood |
| Where does waste travel through? | it travels through the ureters to the urinary bladder |
| Where does waster get expelled through? | the urethra |
| What do lungs release? | they release carbon dioxide and a small amount of water |
| What does skin release? | it releases sweat (water and urea) |
| What does the liver produce? | it produces urea from old red blood cells and proteins |
Created by:
carlsond
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