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Stack #3233862
Question | Answer |
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Cardiac muscle tissue | Only the heart contains cardiac muscle tissue, which forms most of the heart wall. Cardiac muscle is also striated, but its action is involuntary. The alternating contraction and relaxation of the heart is not consciously controlled. |
Properties of muscle tissue | Muscular tissue has four special properties that enable it to function and contribute to homeostasis: 1. electrical excitability 2. contractility 3. extensibility 4. elasticity |
Elasticity | is the ability of muscular tissue to return to its original length and shape after contraction or extension. |
Functions of muscular tissue | . Producing motions. 2. Stabilizing body positions. 3. Storing and moving substances within the body. 4. Generating heat (thermogenesis) |
Subcutaneous tissue | Connective tissue surrounds and protects muscular tissue. The subcutaneous layer or hypodermis, which separates muscle from skin, is composed of areolar connective tissue and adipose tissue |
Bursae | Fluid filled sacs containing synovial fluid |
Three layers of connective tissue | 1. epimysium 2. perimysium 3. endomysium |
Tendon | The epimysium, perimysium, and endomysium are all continuous with the connective tissue that attaches skeletal muscle to other structures, such as bone or another muscle. |
Fibromyalgia | is a chronic, painful, nonarticular rheumatic disorder that affects the fibrous connective tissue components of muscles, tendons, and ligaments |
sarcolemma | The multiple nuclei of a skeletal muscle fiber are located just beneath the sarcolemma (sarc- = flesh; -lemma = sheath), the plasma membrane of a muscle cell |