NUTR 1010 Lecture Notes - Lecture 12: Low-Density Lipoprotein, Megaloblastic Anemia, Stunted Growth
21 Apr 2016
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Plasma the fluid (water with electrolytes: 55% of blood volume. Red blood cells (aka erythrocytes: 45% of the blood volume. White blood cells (part of the immune system) and platelets (for blood clotting: less than 1% of blood volume. Important in the healing process: blood carries platelets for clotting. Important part of the immune system: blood carries white blood cells. Unhealthy blood: transports everything efficiently, doesn"t transport oxygen and/or nutrients well, usually because of problems with red blood cells. Hemoglobin binds oxygen, delivers it to cells. If there are too few red blood cells or if the red blood cells are damaged in some way, oxygen transport doesn"t happen. A trace mineral (the opposite of a major mineral: need less than 100mg per day. Part of hemoglobin: oxygen-carrying protein found in red blood cells, transports oxygen around the body. Part of myoglobin: like hemoglobin, but found in muscle cells, helps carry oxygen into muscle cells.
