09 Skeletal Muscles
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![](https://photos.thisispiggy.com/file/wikiFiles/51A4A3AE-20F3-4712-AD42-F65DD4573205.jpg)
- smooth muscle no striation
![](https://photos.thisispiggy.com/file/wikiFiles/06FE0A9A-CFB3-4FF8-B7FA-A4286CF47C45.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/C187A3F9-6D40-4D22-8794-E08D09263418.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/488B0270-E2ED-41CD-BB52-EE29E93B3DB3.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/310B60C4-1C6A-46D0-B543-D5F8E5AC05E9.jpg)
- triad of T tubule + 2 terminal cisterna
![](https://photos.thisispiggy.com/file/wikiFiles/218BBE63-A32A-4BDD-9716-9D334BC6E42D.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/7865BF0D-0497-4554-B773-1C6175F0A5C4.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/C77A82DF-1C41-4692-BF5D-44A7C72A7CF2.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/E60A6893-412D-4327-AD23-C7CAE5448DCE.jpg)
- A not change
- H and I shrink
![](https://photos.thisispiggy.com/file/wikiFiles/7E3DF000-E7C4-4FBB-9F3F-9340373C9A61.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/38812823-41A8-426F-8A88-E70BD72072FB.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/A9939A22-4E12-4AF7-89A2-1A90B59394FA.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/66A491A1-4D02-4F2B-A05E-8F1E4417416C.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/13642C75-772B-4558-BAEC-14EBAC649B4C.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/63F88F4D-8401-42BF-84BD-5FB9517265AA.jpg)
- thin filament regulate: regulated by tropomyosin, part of actin
- smooth muscle thick filament regulated
![](https://photos.thisispiggy.com/file/wikiFiles/CBAD050A-309A-4367-A5CB-047E14D2E939.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/3A544C5B-E4F1-4118-B9CE-D45668891D17.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/92A86194-5445-46B6-A84B-9C1F1D872109.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/68C3E69F-42F0-497F-BF09-B861A46EE50B.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/EB04CAD2-6281-4BC7-89AA-C9DD40778E9A.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/8B9A53F8-E471-42D3-948B-15C640871140.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/4DB133BA-A52C-40D0-8F18-4796B35B3AF7.jpg)
- EC coupling: voltage and depolarization of muscle cell coupled by Ca to contraction of muscle
![](https://photos.thisispiggy.com/file/wikiFiles/462A7538-2B0C-4FBA-B3FC-A8FA2B1D99FC.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/929C4EE7-A950-426F-BC95-7D3B013ACD08.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/9C7458D9-FFFA-4D7F-9533-EDA0D378DC88.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/6ED16C43-B9DB-4513-902B-6C19F08B86EC.jpg)
- contraction of muscle cells follows AP
![](https://photos.thisispiggy.com/file/wikiFiles/1CDCA2EB-A7A0-408A-82CE-F9B6F764A17D.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/AF0F8E2E-1CBB-4777-80C9-D2345490524C.jpg)
- CCB main effect on smooth muscle not skeletal
![](https://photos.thisispiggy.com/file/wikiFiles/E20F2951-2357-4F1B-BC10-90423FACDC0C.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/9714AE74-FBF1-4C64-987C-C49A1824F668.jpg)
- must get Ca back in for more contraction
![](https://photos.thisispiggy.com/file/wikiFiles/90DF8B50-D7E1-4481-8DAA-E66CA2B6594C.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/BEB46FF7-2B0B-46E5-999B-005CAD7001EE.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/A18E8FAA-B3F9-4F39-AF1F-75B1810A5B8A.jpg)
![](https://photos.thisispiggy.com/file/wikiFiles/B2F224A1-2D26-496E-BEF7-16B6B9973FD1.jpg)
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