L17 heart and circulatory system vertebrates

4 important questions on L17 heart and circulatory system vertebrates

Extracellular inorganic electrolytes:

Sodium, chloride and biocarbonate ions

Intracellular inorganic electrolites:

Potassium, magnesium and phosphate ions and proteins

What is coronary circulation?

Heart that has its own blood vessels.
occurs in larger fishes, frogs, repiles, bird and mammals.

heart at rest requires 70% of oxigen
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Arteries far from heart are:

Less elastic but muscular

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