This is the question for the letter M: Muscle!
What type of muscle is the heart?
A. Skeletal
B. Smooth
C. Cardiac
Scroll down for the answer!
The answer is C: Cardiac
The heart is cardiac muscle
Cardiac muscle contracts to allow the heart to pump blood. Cardiac muscle uses a lot of energy, requiring a constant supply of oxygen and nutrients.
The heart is about the size of your fist, beats about 115,00 times/day, and pumps about 2,000 gallons of blood/day.
Most heart attacks happen on a Monday, and the most common day is Christmas day.