how does the cardiovascular system integrate with the skin to control body temperature?
Why do our muscles tire durng exercises?
how does the lymphatic system work with the cardiovascular system to protect the body?
Why doesn't the blood flow backward in our veins?
What does adreline do to our cardiovascular system?
How does the conduction system control proper blood flow?
2007-03-25 11:06:30 · 3 answers · asked by lovely86 1 in Science & Mathematics ➔ Biology
1) capillaries near the surface of the skin can bring blood right up to the outside in order to cool the body or keep blood away from the skin in order to warm the body
2) because they use up all of their ATP and are working too quickly to make more via respiration. Instead, all they can do is anaerobic respiration (fermenation) producing a lactic acid buildup causing that burning sensation.
3) blood is filtered through the spleen, where white blood cells can be added
4) because veins are a) surrounded by muscles, pushing the blood up to the heart and also because b) veins have valves which prevent back flow
5) increases heart rate and stroke volume
2007-03-25 11:17:43 · answer #1 · answered by dixiechck615 3 · 0⤊ 0⤋
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2016-09-05 15:42:19 · answer #2 · answered by kindle 4 · 0⤊ 0⤋
I'll just pick one... Why doesn't the blood flow backward in our veins?
Most veins contain one-way valves that keep the blood from coming back the way it came. The pressure of our muscles on the veins keeps the blood moving through them.
2007-03-25 11:16:55 · answer #3 · answered by birdbrained22 2 · 0⤊ 0⤋