Fort Bend ISD / Homepage



________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________The respiratory and circulatory systems The respiratory and circulatory systems work together to maintain ______________The circulatory system transports blood and other materials. brings supplies to cells carries away wastes separates oxygen-poor and oxygen-rich blood The respiratory system is where _____________________________________________.picks up____________________ from inhaled air expels __________________________________respiratory system moves gases into and out of the blood.The lungs contain the __________________________________________. Millions of alveoli give the lungs a huge surface area. The _______________________________________ absorb oxygen from the air you inhale. Breathing involves the diaphragm and muscles of the rib cage. Air flows from areas of_____________________ pressure to______________________ pressureThe circulatory system moves blood to all parts of the body. The system includes the _______________________________________________________________heart pumps blood throughout body ___________________ move blood away from heart _______________________ move blood back to heart __________________________ get blood to and from cellsThere are three major functions of the circulatory system.transporting blood, gases, nutrients collecting waste materials26479520955000___________________________Gas exchange occurs in the __________________ of the lungs. Oxygen and carbon dioxide are carried by the blood to and from the alveoli.oxygen diffuses from alveoli into capillary oxygen binds to______________________ in red blood cells carbon dioxide diffuses from capillary into alveoli________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Respiratory diseases interfere with gas exchange.Lung diseases reduce airflow and oxygen absorption._____________destroys alveoli.____________________ constricts airways.__________________ produces sticky mucusThe heart is a muscular pump that moves the blood through two pathways16954529400500Cardiac muscle tissue works continuously without tiring.The heart has four chambers: two atria, two ventricles._______________________________ in each chamber prevent backflow of bloodMuscles squeeze the chambers in a powerful pumping action. The heartbeat consists of two contractions______________________________, or pacemaker, stimulates atria to contract______________________________ stimulates ventricles to contract5822315-4445000Blood flows through the heart in a specific pathway._____________________________oxygen-rich blood from lungs enters left atrium, then left ventricle _____________________________oxygen-poor blood enters right atrium, then right ventricleThe heart pumps blood through two main pathways. ________________________________ occurs between the heart and the lungs.oxygen-poor blood enters lungs excess carbon dioxide and water expelled blood picks up oxygen oxygen-rich blood returns to heart ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ occurs between the heart and the rest of the body. oxygen-rich blood goes to organs, extremities, oxygen-poor blood returns to heart 783590317500Arteries, veins, and capillaries transport blood to all parts of the body._________________ carry blood away from the heart.blood under great pressurethicker, more muscular walls __________________ carry blood back to the heart.blood under less pressurethinner walls, larger diametervalves prevent backflowCapillaries move blood between veins, arteries, and cells. 2788920952500Blood pressure is a measure of the force of blood pushing against artery walls. ____________________________: left ventricle contracts ____________________________: left ventricle relaxes ___________________________ lack of oxygen to the heart___________________ lack of oxygen to the brainTissue damage due to lack of oxygen43313356731000Blood is a complex tissue that transports materials. Blood is composed mainly of cells, cell fragments, and plasma. Whole blood is made up of different materials.__________________________________________________________________________________________________________________Plasma is a key factor in maintaining homeostasis. molecules diffuse into and out of plasmacontains proteins that stabilize blood volume________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________contains clotting factors contains immune proteinsPlatelets and different types of blood cells have different functions.The _________________________________ manufactures most of the blood components. Red blood cells make up 40-45 % of all blood cells.transport oxygen to cells and carry away carbon dioxidehave no nuclei and contain hemoglobin White blood cells fight pathogens and destroy foreign matter. _____________________________ help form clots that control bleeding.The ____________________________________________ provides another type of circulation in the body.The lymphatic system is a major part of the immune system.tonsils filter bacteria and virusesthymus develops white blood cells spleen filters lymph, contains immune cells ____________________________________ help destroy pathogens, parasites, and foreign matter.White blood cells attack infections inside the body.Phagocytes engulf and destroy pathogens. ______________________ destroy infected cells.______________________ produce antibodies.Functions of the Immune System____________________________________________________________________________________________________________________________ any non-self substance capable of triggering an immune response An antigen can be a whole non-self cell, a bacterium, or a virus. Even allergens and cancerous cells_____________________________: Protein that recognize and bind to pathogens. Once the body has been exposed to a pathogen, the body creates memory B cells, reducing the chance of being infected again!ANATOMY OF THE IMMUNE SYSTEMimmune cells develop in the _______________________________ immune responses occur in the secondary organs__________________: filters and removes old and damaged red blood cells removes infectious agents and uses them to activate cells called lymphocytes____________________: tissue insides bones that produces blood cells B cells and T cells are types of white blood cells____________________: T cells mature here (learn their job)____________________ small organs that filter out dead cells, antigens, and other “stuff” to present to lymphocytes____________________ collects fluid (lymph) “leaked” from blood into the tissues and returns it to circulation______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3 pairs masses of lymphoid tissue- helps protect against bacteria around the throat______________________________: “safe house” for the beneficial bacteria living in the human gutThe Immune ResponseNonspecific Defense MechanismsSpecific Defense Mechanisms(Immune Response)First Line of DefenseSecond Line of DefenseThird Line of DefenseGoal:Details:Goal:Details: Two types of cells are involved:B cells: provide immunity against antigens and pathogens in the body fluids by making antibodiesThis is called _____________________________________________Vaccines cause _______________________________ to produce _____________________________________T cells: provide defense against abnormal cells and pathogens inside living cellsIn___________________________________ diseases, white blood cells attack the body’s healthy cells. ................
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