Anatomy of Muscle Cells There are three types of muscle tissue in the human body. These muscle tissues are skeletal muscles, smooth muscles and cardiac muscles. Each of these muscle tissues has it very own anatomical makeup, which vary from muscle to muscle. The muscle cells in a muscle are referred to as muscle fibers, these fibers are skeletal muscle fibers, smooth muscle fibers and cardiac muscle fibers. The anatomy of a skeletal muscle fiber …showed first 75 words of 1024 total…

…showed last 75 words of 1024 total…another. In cardiac muscle fibers, calcium ions enter the sarcoplasm both from the sarcoplasmic reticulum and from extracellular fluid. The mitochondria in cardiac muscle fiber are larger and more numerous than in skeletal muscle fiber. Cardiac muscle fibers can also use lactic acid produced by skeletal muscle fibers to make ATP, a benefit during exercise. I had already submitted my Email is Johnnynip@aol.com,please excuse me for forgetting my email address....thank you