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Muscle tissue that surrounds hollow organs and tubes, it is found as single cells or in small groups. Its contraction leads to the propulsion of luminal contents or flow regulation. It is controlled by the autonomic NS and is involuntary. Functions of muscular tissue. Producing body movements, stabilizing body positions, storing & moving ...
List the major structural and functional differences among the three types of muscle tissue. Skeletal muscle tissue is primarily attached to bones. It is striated and voluntary. Cardiac muscle tissue forms the wall of the heart. It is striated and involuntary. Smooth (visceral) muscle tissue is located in the viscera.
Skeletal muscle tissue moves the body by pulling on our bones, cardiac muscle tissue pumps blood through the cardiovascular system, and smooth muscle tissue pushes fluids and solids along the digestive tract and other internal organs, and regulates the diameters of small arteries. Identify the common properties shared by muscle tissues.
Skeletal muscle fibers are organized into groups called fascicles. Blood vessels and nerves enter the connective tissue and branch in the cell. Muscles attach to bones directly or through tendons or aponeuroses. Skeletal muscles maintain posture, stabilize bones and joints, control internal movement, and generate heat.
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
The muscle cell, or myocyte, develops from myoblasts derived from the mesoderm. Myocytes and their numbers remain relatively constant throughout life. Skeletal muscle tissue is arranged in bundles surrounded by connective tissue. Under the light microscope, muscle cells appear striated with many nuclei squeezed along the membranes.
Figure 4.4.1 – Muscle Tissue: (a) Skeletal muscle cells have prominent striation and nuclei on their periphery. (b) Smooth muscle cells have a single nucleus and no visible striations. (c) Cardiac muscle cells appear striated and have a single nucleus. From top, LM × 1600, LM × 1600, LM × 1600.
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