Smooth Muscle Under Microscope Labeled

Smooth muscle tissue under microscope labeled.

Smooth muscle under microscope labeled. To find the muscle layer look at the at slide at the lowest power this is about the same as looking at the glass slide with the naked eye. Smooth muscle fibers are spindle shaped wide in the middle and tapered at both ends somewhat like a football and have a single nucleus. Note that skeletal muscle cells are multinucleate that is each cell has more than one nucleus. The contraction of smooth muscle is slow and generally under the control of the autonomic nervous system resulting in its alternate moniker involuntary muscle.

Smooth muscle 100x to get an idea of the arrangement of the individual cells look at the nuclei which look like purple spots in this image. As indicated by its name the tissue displays no striations or other distinct patterns under the microscope. The bundles are branched like a tree but connected at both ends. Muscle tissue junqueira s basic histology 14e.

Instead of having motor units all cells within a whole smooth muscle mass contract together. They range from about 30 to 200 mm thousands of times shorter than skeletal muscle fibers and they produce their own connective tissue endomysiumalthough they do not have striations and sarcomeres smooth muscle fibers do have actin and myosin. Sc 2115 anatomy and physiology i. Smooth muscle is typically comprised of numerous elongate spindle shaped cells each of which contains a single nucleus located in its center.

Smooth muscle designed for slow sustained. Because skeletal muscle fibers have obvious bands called striations that can be observed under a microscope it is also called striated muscle. Smooth muscle also called involuntary muscle muscle that shows no cross stripes under microscopic magnification. Unlike skeletal muscle tissue the contraction of cardiac muscle tissue is usually not under conscious control so it is called involuntary.

Since it is not under conscious. Smooth muscle cells are a lot smaller than cardiac muscle cells and they do not branch or connect end to end the way cardiac cells do. Smooth muscle tissue unlike striated muscle contracts slowly and automatically. It consists of narrow spindle shaped cells with a single centrally located nucleus.

Smooth muscle may be studied using slide 29 029 1 smooth muscle webscope or slide 169 169 webscope both in the intestine. Cardiac muscle tissue like skeletal muscle tissue looks striated or striped. January 22 2019 hajid leave a comment.