NU FS374 Study Guide - Quiz Guide: Cell Membrane, Action Potential, Endomysium

• School: University of Alberta
• Department: Nutrition and Food Sciences
• Course: NU FS374
• Professor: Mirko Betti

Document Summary

The smooth muscle has a single nucleus located centrally to each cell. It looks layered and is involved in involuntary movements. The skeletal muscle has multiple nuclei, peripherally located. This type of muscle is involved in voluntary and involuntary movements. The cardiac muscle is the only one that runs in different directions but it only has single nucli centrally located. Tendons attach to the bones and then muscles attach to tendons. The muscle is made up of many layers inside one another. Inside the epimysium are bundles of muscle fibers. All the bundles are held together by the perimysium. Each individual bundle is surrounded by the endomysium. The bundles are made up of muscle fibers, which are made up of myofibril. A single muscle cell is called a muscle fiber. As previously mentioned those muscle fibers have smaller units called myofibrils. The muscle has lots of mitochondria and therefore, there is lots of atp produced.