Living SystemsFocus Question:How do the circulatory and respiratorysystems work together?Lesson 1-1B
Circulatory System ReviewWhat are the basic needs of all living cells?How do the cells in multicellular organisms get theresources they need to stay alive?What is the main function of the left side of thehuman heart?What is the main function of the right side of thehuman heart?What is the function of the red blood cells?What are the main kinds of blood vessels and whatfunctions do they perform?Describe what happens when blood flows throughthe lungs.Describe what happens when blood in capillariesflows past cells.
Circulatory and RespiratorySystems VideoWatch & listen for information thatconfirms what you know about thecirculatory system and how it interactswith the respiratory system.Think about how the new informationrelates to the big idea of the circulatorysystem, which provides life support forcells.
Video QuestionsWhat happens to heart rate duringexercise?Why does that happen?How does this help cells in the body?What happens when a blood vessel iscut?How does this help cells in the body?What other kinds of cells are in theblood and what do they do?
VocabularyCell - the basic unit of lifeOxygen - an atmospheric gasneeded by most living cellsCarbon dioxide - a waste gasproduced by living cells
VocabularyHeart - a muscular organ that contractsrhythmically, producing a pulse witheach contractionBlood - a liquid tissue that flows to andfrom cells in blood vessels calledarteries, veins, and capillariesArteries - carry blood away from theheart to the bodyVeins - carry blood from the body to theheart
Capillaries - connect arteries and veins.Gases, nutrients, and wastes areexchanged between capillaries andcellsFour chambers of the human heart -right atrium, right ventricle, leftatrium, and left ventricleCirculatory system - includes tissues(blood and blood vessels) and organs(heart) that transport life-supportsubstances to cells and removes waste
Lung - organ in animals where gases,such as oxygen and carbon dioxide,pass between the atmosphere and thebloodRespiratory system - includes tissuesand organs (lungs) that provide gasexchange between the blood andatmosphereTissue - a group of similar cells workingtogether to perform a function
ContentWhat do cells need to stayalive?Cells need water, food, oxygen,and waste disposal to stayalive.
ContentHow do cells get the thingsthey need to survive?Cells get the things they needto survive by the circulatorysystem which delivers water,sugar, and oxygen to cells andcarries waste carbon dioxideaway from cells.
ContentWhat is the general path taken byblood through the circulatory system?The path the blood flows through thecirculatory system is: from the body tothe right atrium of the heart, to the rightventricle, to the lungs, to the left atrium,to the left ventricle, into arteries thatflow into capillaries, which are incontact with cells. Blood returns to theheart in veins.Your questions?