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2006-08-05 02:58:38 · 4 answers · asked by i dunno 2 in Education & Reference Homework Help

4 answers

the heart...

2006-08-05 06:50:46 · answer #1 · answered by Anonymous · 0 0

The heart is where cardiac muscles are. The heart is a muscle with valves and plumbing. The contractions of the heart are the movements of the cardiac muscles pushing the blood through the vascular system (arteries and veins).

2006-08-05 04:40:37 · answer #2 · answered by vector4tfc 4 · 0 0

The cardiac muscles are the muscles that make up the heart..which in itself is muscle.

2006-08-05 03:03:49 · answer #3 · answered by ? 6 · 0 0

in the heart

2006-08-05 03:12:04 · answer #4 · answered by still breathing 6 · 0 0

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