Smooth Muscle Tissue Under Microscope Labeled
As indicated by its name the tissue displays no striations or other distinct patterns under the microscope.
Smooth muscle tissue under microscope labeled. Involuntary muscle smooth muscle also called involuntary muscle muscle that shows no cross stripes under microscopic magnification. It consists of narrow spindle shaped cells with a single centrally located nucleus. More varied than other types of muscle tissue smooth muscle may exhibit a number of different. The contraction of smooth muscle is slow and generally under the control of the autonomic nervous system resulting in its alternate moniker involuntary muscle.
Osteocytes are once osteoclasts that became trapped in the hardening bone tissue false because if the stripes visible under the microscope smooth muscle is called striated muscle. Smooth muscle is found in the walls of internal organs such as the organs of the digestive tract blood vessels and others. Instead of having motor units all cells within a whole smooth muscle mass contract together. Skeletal and cardiac muscle cells are called striated muscle because of the very regular arrangement of their intracellular contractile units sarcomeres at the light microscope lm and electron microscope em levels.
It consists of mononucleatefibers with tapered edges. Cardiac muscle tissue like skeletal muscle tissue looks striated or striped. If the nuclei look long and thin the cells have been sectioned longitudinally ls. Smooth muscle tissue under microscope labeled.
There are three kinds of muscle tissue. 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. Since it is not under conscious. Smooth muscle tissue unlike striated muscle contracts slowly and automatically.
January 22 2019 hajid leave a comment. Unlike skeletal muscle tissue the contraction of cardiac muscle tissue is usually not under conscious control so it is called involuntary. Sc 2115 anatomy and physiology i. Note that skeletal muscle cells are multinucleate that is each cell has more than one nucleus.
Smooth muscle has inherent contractility and the autonomic nervous system hormones and local metabolites can influence its contraction. Smooth muscle designed for slow sustained. Smooth muscle is specialized for slow and sustained contractions of low force. The bundles are branched like a tree but connected at both ends.
No striationsare visible in smooth muscle under the microscope. Because skeletal muscle fibers have obvious bands called striations that can be observed under a microscope it is also called striated muscle. This regular arrangement imparts a cross striated or striped appearance. Muscle tissue junqueira s basic histology 14e.