production not enough iron prevents hemoglobin cause a lack of O2 carried CO2

Production not enough iron prevents hemoglobin cause

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production not enough iron prevents hemoglobin cause a lack of O2 carried CO2 + H2O H2CO 3 HCO3- + H+ in blood near body cells carbonic acid bicarbonate ion carbonic anhydrase blood in lungs
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o Hemolytic anemias: occur when RBC destruction exceeds production (faster destruction than formed cells) sickle cell anemia: caused by genetically abnormal hemoglobin one amino acid was inherited incorrectly blood has too little O2 in it and hemoglobin changes shape increased survival of malaria WBC Disorders o mononucleosis: a viral disease of the lymphocytes caused by the Epstein-Barr virus (kissing disease; mono) causes abnormally-shaped lymphocytes symptoms: similar to influenza; fever, chills, headache, sore throat, swollen glands o Leukemia: a cancer of the WBCs that causes the number of WBCs to increase affects the production of ‘normal’ blood cells from bone marrow can cause tumors, blood vessels to invade tissues in the body symptoms: anemia, chronic fatigue, increased susceptibility to infections, bone tenderness treatments: radiation and chemotherapy, blood transfusions, bone marrow transplant blood types: genetically determined by the glycoproteins found on the surface of RBCs o named by the antigen found on the surface of the cell antigens: molecules/substance that the body sees as foreign antibodies: ‘Y’ shaped with receptor on the top that fits with the opposite antigen causes agglutination o agglutination: clumping that occurs when one’s antibodies contact a foreign cell agglutinated cells get stuck in vessels and block blood flow recipient’s antibodies determine blood types that may be transfused a mass of RBCs o Rh factor: an important antigen the becomes critical during pregnancies of Rh negative women problem occurs at child birth the second pregnancy is where the problem occurs anti-Rh antibodies can develop in the mother and cross the placenta, destroying the fetus’s RBCs RBCs don’t cross, just the antibodies this condition is called hemolytic disease of the newborn blood clotting o inactive blood protein (clotting factor proteins), released by platelets, and doesn’t cause a problem until there is a cut blood vessel is activated, and gets sticky and clots together, known as fibrin becomes a scab o the skin surface
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o disorders hemophilia: an inherited condition that results in one or more of the clotting actors not being made embolus: a clot that continues to circulate thrombus: a clot that lodges in a vessel o can cause a heart attack or stroke 10/25/17 – Chapter 12 Circulatory System o cardiovascular system o lymphatic system Cardiovascular System o heart artery arteriole capillary venule vein heart o heart puts the pressure on blood to move it around the body o blood vessels: responsible for keeping RBCs, platelets, and plasma/proteins in the system (prevent them from leaving) o capillaries are the only place where cells can be exchanged/move in or out of the blood vessels O2 and CO2 move in and out of the blood via the capillaries
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