Microscopic anatomy and organization of skeletal muscle pdf

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microscopic anatomy and organization of skeletal muscle pdf

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MUSCLES-STRUCTURE AND FUNCTION

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. Published on Jul 12, Introduction to Muscular System. SlideShare Explore Search You.

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Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Full Name Comment goes here. Are you sure you want to Yes No. Anirudh Srivastava. Rubi Banik. A Rayees Ahangar.

Amit Shaw. Show More. No Downloads. Views Total views. Actions Shares. No notes for slide. Lesson ObjectiveLesson Objective By the end of this 2 hours lecture, student will beBy the end of this 2 hours lecture, student will be able to:able to: 1.

State the types of muscle tissuesState the types of muscle tissues 2. Explain the microscopic structure of skeletal musclesExplain the microscopic structure of skeletal muscles 3. Explain the structure and function of the tendonExplain the structure and function of the tendon 4. Explain microscopic structure of cardiac musclesExplain microscopic structure of cardiac muscles 5. Explain microscopic structure of smooth musclesExplain microscopic structure of smooth muscles 6. State the properties of musclesState the properties of muscles 7.

State the functions of the muscular systemState the functions of the muscular system 3. Types of Muscle TissuesTypes of Muscle Tissues 3 types of muscular tissues:3 types of muscular tissues: 1. Skeletal muscle tissueSkeletal muscle tissue 2. Cardiac muscle tissueCardiac muscle tissue 3. Smooth muscle tissueSmooth muscle tissue 5.

Derived from myoblast precursor cells. Epimysium, perimysium and endomysium. Microscopic StructureMicroscopic Structure 7. Microscopic StructureMicroscopic Structure 8. Microscopic StructureMicroscopic Structure 9. Microscopic StructureMicroscopic Structure Z discsZ discs 2. A bandA band 3. I bandI band 4. H zoneH zone 5. Thin FilamentsThin Filaments Attachment of myosin to actin to formAttachment of myosin to actin to form crossbridges.

Power strokePower stroke 4. Phosphate group. Myosin head become reoriented and energized. Phosphate group releases from myosin head.

Flat and broad tendon called aponeuresis. Contain desmosomes, and gap junction. Contain endo and perimysium but lack with epimysium. Cardiac MusclesCardiac Muscles Smooth MusclesSmooth Muscles Consists single, oval, centrally located nucleus. Muscular tissues has four special properties that enable itMuscular tissues has four special properties that enable it to function and contribute to homeostasis:to function and contribute to homeostasis: 1.

Electrical excitabilityElectrical excitability 2. ContractilityContractility 3. ExtensibilityExtensibility 4. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips.

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Skeletal muscle

The muscular system controls numerous functions, which is possible with the significant differentiation of muscle tissue morphology and ability. The muscular system is made up of muscle tissue and is responsible for functions such as maintenance of posture, locomotion and control of various circulatory systems. This includes the beating of the heart and the movement of food through the digestive system. The muscular system is closely associated with the skeletal system in facilitating movement. Both voluntary and involuntary muscular system functions are controlled by the nervous system.

Cardiac muscle appears striated due to the presence of sarcomeres, the highly-organized basic functional unit of muscle tissue. Cardiac muscle, like skeletal muscle, appears striated due to the organization of muscle tissue into sarcomeres. While similar to skeletal muscle, cardiac muscle is different in a few ways. Cardiac muscles are composed of tubular cardiomyocytes, or cardiac muscle cells. The cardiomyocytes are composed of tubular myofibrils, which are repeating sections of sarcomeres. Intercalated disks transmit electrical action potentials between sarcomeres. A sarcomere is the basic unit of muscle tissue in both cardiac and skeletal muscle.

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Telocytes are a recently described stromal cell type widely distributed in various organs including the female and male reproductive systems. This study was aimed to investigate for the first time the existence, distribution and characteristics of telocytes in normal human testis by an integrated morphological approach immunohistochemistry, immunofluorescence and transmission electron microscopy.


On the following figure, label blood vessel, endomysium, epimysium, fascicle, muscle cell, perimysium, and tendon. Review Sheet 14 e b. Perimysium. Blood.


Muscle Contractions: How Neurotransmitters And Chemical Reactions Move Muscles And Bones

How do the bones of the human skeleton move? Skeletal muscles contract and relax to mechanically move the body. Messages from the nervous system cause these muscle contractions. The whole process is called the mechanism of muscle contraction and it can be summarized in three steps:.

MUSCLES-STRUCTURE AND FUNCTION

Muscle Lab Learning Objectives Identify the histological landmarks of skeletal muscle Contrast the structure and function of skeletal, smooth, and cardiac muscle tissue.

T-tubule biogenesis and triad formation in skeletal muscle and implication in human diseases

Skeletal muscle , also called voluntary muscle , in vertebrates , most common of the three types of muscle in the body. Skeletal muscles are attached to bones by tendons , and they produce all the movements of body parts in relation to each other. Unlike smooth muscle and cardiac muscle , skeletal muscle is under voluntary control. Similar to cardiac muscle, however, skeletal muscle is striated; its long, thin, multinucleated fibres are crossed with a regular pattern of fine red and white lines, giving the muscle a distinctive appearance. Skeletal muscle fibres are bound together by connective tissue and communicate with nerves and blood vessels.

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Microscopic Anatomy and Organization of Skeletal Muscle. Skeletal Muscle Cells and Their Packaging into Muscles. 1. Use the items in the key to correctly.


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