A biologist is looking at human muscle fibers under the microscope.Which criterion should the biologist use to distinguish between skeletal and cardiac muscle fibers?

Question

Quizplus · Accepted Answer

The presence of more than one centrally located nucleus in a fiber indicates that the fiber is skeletal muscle. Cardiac muscle fibers only have one centrally located nucleus. Other criteria such as the presence of T tubules, regular arrays of thick and thin filaments, the number of mitochondria, or the presence of a sarcoplasmic reticulum may also apply to both types of muscle fibers.

A Biologist Is Looking at Human Muscle Fibers Under the Microscope.Which