Presentation on theme: "KEY CONCEPT Blood is a complex tissue that transports materials."— Presentation transcript:
1 KEY CONCEPT Blood is a complex tissue that transports materials.
2 Blood is composed mainly of cells, cell fragments, and plasma. Whole blood is made up of different materials.plasmared blood cellswhite blood cellsplateletsred blood cells,white blood cells,and plateletsplasma
3 Plasma is a key factor in maintaining homeostasis. molecules diffuse into and out of plasmacontains proteins that stabilize blood volumecontains clotting factorscontains immune proteins
4 Platelets and different types of blood cells have different functions. The bone marrow manufactures most of the blood components.red blood cellplateletwhite blood cell
5 Red blood cells (erythrocytes) make up 40-45 % of all blood cells. transport oxygen to cells and carry away carbon dioxidehave no nuclei and contain hemoglobinHemoglobin is a protein that contains iron to which the oxygen binds
6 White blood cells (leukocytes) fight pathogens and destroy foreign matter. red blood cellplateletwhite blood cell
7 Platelets help form clots that control bleeding. fibrinred blood cellwhite blood cell
8 Protein markers define blood types and Rh factors. ABO blood group the most commonRh factor can be negative or positiveblood types must be compatible for transfusionsAgglutination occurs when blood cells clump togetherThis would occur if someone with Type A blood is given a transfusion from someone with Type B blood.The b antibodies in the Type A blood will attack the B antigens in the Type B blood.
9 Protein on RBC (antigen) Antibodies in blood plasma Can Donate to Blood TypeGenotypeProtein on RBC (antigen)Antibodies in blood plasmaCan DonatetoCan Receive fromAIAIA or IAiBIBIB or IBiABIAIBOiiRh FactorRh+Rh+Rh+ orRh+Rh-Rh-Rh-Rh-
10 The lymphatic system collects fluid that leaks out of the capillaries. Lymph is collected from tissues and returned to the circulatory system.heartlymph nodeslymph vesselsThe lymphatic system collects fluid that leaks out of the capillaries.Lymph vessels have valves to prevent backflow.Lymph nodes filter the lymph and destroy foreign matter.Lymph vessels return cleaned fluid to the circulatory system.If lymph vessels or nodes are damaged, lymph collects in an area.
11 The lymphatic system is a major part of the immune system. tonsilsthymusspleenStructures in the lymphatic system help fight disease.tonsils filter bacteria and virusesthymus develops white blood cellsspleen filters lymph, contains immune cellsLymphocytes help destroy pathogens, parasites, and foreign matter.