Myofibrils
myofibrils
the so called longitudinal bundles in the cytoplasm of a skeletal muscle are actually the muscle contractile proteins, namely actin and myosin.
Myofibril If you're looking for the answer for Medical Mayham it's myofibril.
Sarcoplasm
A sacroplasm is the cytoplasm of inside a skeletal muscle cell.
Same place as everywhere else in the body. The cytoplasm.
It's stored inside the longitudinal tubules of the sarcoplasmic reticulum.
The long ribbon-like organelles that nearly fill the cytoplasm of skeletal muscle cells are called myofibrils. These structures are composed of repeating units called sarcomeres, which contain the contractile proteins actin and myosin. Myofibrils enable muscle contraction and give skeletal muscle its striated appearance. As they occupy most of the cytoplasm, they push the nuclei to the periphery of the muscle fibers.
The organization of contractile proteins into a regular end-to-end repeating pattern of sacromeres along the length of each cell accounts for the striated, or striped, appearance of skeletal muscle in longitudinal section.
Sound waves are longitudinal.
Sound, at least in gases like air, can only propagate as a longitudinal wave.
A compression wave is another name for a longitudinal wave.