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Bio Chapter 10- Muscle Tissue.docx - Biology: Human Anatomy...

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Biology: Human Anatomy and PhysiologyChapter 10: Muscle TissueWhat are thetypes of muscular tissue?1.Skeletal muscle tissueStriatedVoluntary2.Cardiac muscle tissueStriatedinvoluntaryautorhythmicity3.Smooth muscle tissueNon-striatedInvoluntarySkeletal Muscle TissueTissue of the skeletal muscle, composed ofstriated muscle fibers (cells),supported by connectivetissue, attached to a bone by a tendon or an aponeurosis, andstimulated by somatic motorneurons.1.StriatedAlternating light and dark protein bands (striations) are seen when the tissue isexamined with a microscope2.VoluntarySkeletal muscle tissue works mainly in avoluntarymanner. Its activity can beconsciously controlledby neurons (nerve cells) that are part of the somatic(voluntary) division of the nervous systemCardiac Muscle TissueStriated muscle fibers (cells) that form the wall of the heart; stimulated by an intrinsic conductionsystem and autonomic motor neurons.1.StriatedCardiac muscle is alsostriated2.InvoluntaryThe alternating contraction and relaxation of the heart is not consciouslycontrolled3.AutorhythmicityBuilt-in rhythmSmooth Muscle TissueLocated in the walls of thehollow internal structuressuch asblood vessels, airwaysand mostorgans.Also found in theskin,attached to the hair follicles.1.Non-striated2.Involuntary
Involuntary, and somesmooth muscle tissue, such as the muscles that propelfood through your gastrointestinal tract, hasautorhythmicity.What are thefunctionsand properties of thethree types of muscular tissue.1.producing body movements2.stabilizing body positions3.storing and moving substances within the body4.generating heat (thermogenesis)DescribeThermogenesisInvoluntary contractions of skeletal muscles, known as shivering, can increase the rate of heatproductionWhat are the4 properties of muscular tissue?1.Electrical excitabilityThis is theability to respond to certain stimuli by producing electrical signals calledaction potentials.2.ContractilityAbility of muscular tissue to contract forcefully when stimulated by an action potential.When a skeletal muscle contracts, it generated tension while pulling on its attachmentpoints.3.ExtensibilityThis is theability of the muscular tissue tostretch, within limits, without being damaged.4.ElasticityTheability of the muscular tissue toreturn to its original lengthand shape aftercontraction or extension.10.2 SKELETAL MUSCLE TISSUEWhat is the function of skeletal muscle?Controlmovement of substances throughout the bodyAllows muscle to move, aids in swallowing, urination, and deficationProtects internal organsContributes to themaintenance of homeostasis in the body bygenerating heat.

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Term
Fall
Professor
Allan Kew
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