Answer :
Using the theories of arteries, we got that cardiac muscle tissue is the tissue of the heart which is affected first when there is decreased blood supply to the coronary arteries.
The different types of tissues found in human heart are-
- Cardiac muscle tissue
- Epithelial tissue
- Connective tissue
The cardiac muscle tissue supports in the pumping of the blood in the heart and out of the heart.
The connective tissues helps to support its shape and also connect the muscles to each other. The connective tissue actually forms the protective covering known as the pericardium.
The epithelial tissue forms the lining of the heart their by allowing the blood so that blood move smoothly.
Hence, When there is decreased blood supply to the coronary arteries, then the tissue of the heart which is affected first is cardiac muscle tissue.
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