KINESIOL 2YY3 Lecture 6: Lecture 6: Online - Blood
26 Jan 2018
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Document Summary
Transport of oxygen, carbon dioxide, glucose, amino acids, fatty acids, metabolic end products (removing waste) Vitamin d precursor from skin to liver and kidneys. Kidneys to intestines (kidney doesn"t really use vitamin d) Hormones (from endocrine glands to rest of body) (ex. Norepinephrine and epinephrine from adrenal medullla to heart) Blood uses the bicarbonate buffer to carry carbon dioxide and resist changes in ph. Blood travels to muscle tissue to pick up heat (heat transfer to blood) then to skin to external environment during exercise. Built in mechanism for self-repair of damaged tissues. Blood tubes are taken and spinned down in the lab to break the blood down into different components. Blood is 8% of our body weight, avg person 4-6 l of blood volume. Fluid portion stays on top (55%) called plasma (the extracellular matrix) Cellular portion (45%) remains on the bottom (red blood cells) and the buffy coat (white blood cells, platelets)
