How much blood do cats have?

How much blood do cats have? I am referring to the domestic cat as this must be how the question should be interpreted.

The body of a typical cat of around 12 pounds or 5 kilograms contains about 330 ml (millilitres) or 12 ounces of blood.

To get a feel as to what this represents, it is the same amount as in a 12 oz can of coke.

Domestic cat has 12 ounces of blood
Domestic cat has 12 ounces of blood
Two useful tags. Click either to see the articles: Toxic to cats | Dangers to cats

The cat’s brain takes about 15-20 percent of the cat’s blood. This is 2.4 ounces.

Resting muscles get about 40 percent or 4.8 ounces. During pursuits after prey the muscles use 90 percent of the cat’s blood.

Nerves and hormones control how the blood is distributed. Blood vessels dilate to increase the amount of blood which is carried to a particular region.

The cat’s arteries carry the blood from the heart and is higher in pressure to blood in the veins where it is returned to the heart.

Veins have valves to ensure that the blood moves in one direction.


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Source: Dr Bruce Fogle’s The Encyclopedia Of The Cat

Useful tag. Click to see the articles: Cat behavior

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