overview of muscle tissue & how it contracts

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Overview of Muscle Tissue & How it Contracts Anatomy & Physiology

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Overview of Muscle Tissue & How it Contracts. Anatomy & Physiology. Muscle Tissue: Comparisons. Skeletal attached to bones or skin cells singular, very long, cylindrical, multinucleated voluntary striated contractions slow to fast. Skeletal Muscle Fibers. Muscle Tissue:Comparisons. - PowerPoint PPT Presentation

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Page 1: Overview of Muscle Tissue & How it Contracts

Overview of Muscle Tissue & How it ContractsAnatomy & Physiology

Page 9: Overview of Muscle Tissue & How it Contracts

Connective Tissue Wrappings of Skeletal Muscle

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Page 14: Overview of Muscle Tissue & How it Contracts

Skeletal Muscle Properties1. Irritability

▫ ability to receive & respond to stimuli2. Contractility

▫ ability to forcibly shorten when adequate stimulus received

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NMJ•neurotransmitter : chemical

(messenger molecule) released from axon terminal

•synaptic vesicles: vesicles that store neurotransmitter molecules in axon bulb until action potential hits which causes vesicle exocytose

•acetylcholine: neurotransmitter in all motor neurons

•motor end plate: portion of sarcolemma that has receptor proteins for acetylcholine

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•http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter10/animation__function_of_the_neuromuscular_junction__quiz_3_.html

•http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP2804

•http://faculty.massasoit.mass.edu/whanna/201/201_content/topicdir/muscle/muscle_media/muscle_VD/page142/page142.html

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Mechanisms of Muscle Contraction

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