You are watching: Why are the connective tissue wrappings of skeletal muscle important
why are there more indirect- that is, tendinous- muscle attachmens to bone than there are indirect attachments?
they can span rough bony prominences that would destroy the more delicate muscle tissues and because of their relatively small size, more tendons than muscles can pass over joints.
tendons are strong and cord-like and attach muscle to bone; aponeurosis are sheet-like and attach muscle to muscle or indirectly to bone
when the _____ reaches the ends of the axon, the neurotransmitter is released and diffuses to the muscle cell membrane to combine with receptors there.
The combining of the neurotransmitter with the muscle membrane receptors causes a change in permeability of the membrane, resulting in ____________________ of the sarcolemma. Then contraction of the muscle fiber occurs.
necrotizing fasciitis is a serous bacterial infection. Necrosis is death of tissues in the body. Considering the organization of the connective tissue sheaths of skeletal muscle, explain how the is infection could spread rapidly throughout the body.
this infection can spread rapdily throughout the body because the (fascia = connective tissue that surrounds the most important structure muscles, nerves, fat, blood vessels) and the toxins kill fascia and the numerous surrounding tissues. the infection also spreads through the blood vessels.
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the bacterium clostridium secrets botulinum toxin, a neurotoxin. the toxin blocks the release of acetylcholine from the axon terminal of a motor neuron. Explain how the toxin binding would change the normal sequence of events at the neuromuscular junction
because clostridium botulinum secretes botulinum toxin which blocks the release of ACh from the axon terminal, causing paralysis.
Connect Anatomy and Physiology with LearnSmart for Hole"s Essentials of Anatomy & Physiology11th EditionDavid N. Shier, Jackie L. Butler, Ricki Lewis
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