Biology Help +k

The heart is made up of cardiac muscle which is similar to the two other muscle types which I forget what there called maybe skeletal and smooth muscle?

 
all above answers are right. there are three types of muscles (i forget there names) like arm muscles, throat muscles, and heart muscle. the heart is designed to beat automatically without your control.
 
yep, the heart is cardiac tissue. It is the most efficient muscle in the human body and the strongest. If all your tough muscle were cardiac we would have people sprinting marathons
 
both cardiac and skeletal muscle are striated (cardiac more so) and multinucleated, smooth muscle isn't. it also has lots of myoglobin and mitochondria.unlike skeletal muscle, cardiac muscle has fewer, bigger t-tubules. it also has intercalated disks between its cells.
 
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