Biology Chapter 23-2

Biology Chapter 23-2 - WBCs also help clean wounds. Some...

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Chapter 23 Chapter 2 – Blood Blood is part of the circulatory system.  It travels through miles and miles of blood  vessels to reach every cell in your body. The average body contains about 6 quarts of blood. That is less than three 2-liter bottles. The circulatory system is made up of your heart, your blood vessels, and blood. Blood – connective tissue made of plasma, red blood cells, white blood cells, and platelets. Plasma the fluid part of the blood. Plasma is a mixture of water, minerals, nutrients, sugars, proteins, and other substances. RBC’s, WBC’s and platelets are found in plasma. Red Blood Cells RBC’s take oxygen to every cell in your body. RBC’s has hemoglobin. hemoglobin – an oxygen-carrying protein. It gives blood its red color. White Blood Cells helps keep the body healthy by destroying bacteria and viruses.
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Unformatted text preview: WBCs also help clean wounds. Some WBCs squeeze out of the blood vessels and move around in tissues, searching for pathogens (bacteria and viruses) 1 Other WBCs release antibodies. Antibodies are chemicals that identify or destroy pathogens. Platelets pieces of larger cells formed in the bone marrow. When a person bleeds, platelets begin to clump together in the damaged area. They form a plug that reduces blood loss. A blood clot is formed. Blood Types Every person has one of four blood types: A, B, AB, O Type O blood is called the universal donor. Everyone can receive Type O blood. Rh factor is involved in blood transfusions. Rh positive and Rh negative. Discovered in the Rhesus monkey. 2...
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Biology Chapter 23-2 - WBCs also help clean wounds. Some...

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