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GrossAnatomy
Muscle
Question | Answer |
---|---|
what is fascia? | connective tissue that surrounds muscle |
what is synonymous to muscle cell? | muscle fiver |
what is a sarcomere? | smallest functional unit of muscle. |
what is the sarcomere made of? | actin and myosin filaments that interdigitate. they ratchet closer together and pull apart. need ATP and calcium. |
in what form and function are most muscles? | they are in pairs. they only contract (do not detract). other muslces pull back again. |
what are myofibrils? | long chain of sarcomeres. stacked sarcomeres from end on end |
what is the longest muscle in the body? | sartorius muscle in the thigh |
what is a muscle cell? | runs the length of the muslce. it is filled wtih myofibrils whcih are the cell product. this is what the muscles make |
sarcoplasmic reticulum |