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3D Elevate Science

Topic 3 Human Body Systems Lesson 4 Managing Materials

QuestionAnswer
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