1
Q
smooth muscle location
A
wall of all hollow organs (e.g. blood vessels, GIT)
2
Q
smooth muscle structure
A
no regular actin and mosin arrangement so not striated
3
Q
what controls smooth muscle
A
autonomic nervous system
4
Q
speed of smooth muscle excitation-contraction coupling
A
slower than cardiac and skeletal
5
Q
smooth muscle excitation-contraction coupling
A
depolarisation activates voltage-gated Ca2+ channels → Ca2+ influx → Ca2+ binds to calmodulin (CaM) → formation of Ca2+-CaM complex → myosin light chain kinase (MLCK) activated → MLCK phosphorylates myosin light chains (MLC20) → form cross-bridges with actin filaments → contraction (e.g. vasoconstriction)
MCD Tissues
flashcards
Decks in class (25)
# Cards
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fluid compartments9
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fluid compartments9
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fluid compartments10
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fluid compartments12
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specialised tissues12
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specialised tissues40
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specialised tissues30
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specialised tissues28
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specialised tissues7
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specialised tissues5
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specialised tissues30
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specialised tissues20
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specialised tissues9
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cell biology of tissues5
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cell biology of tissues5
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cell biology of tissues26
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cell biology of tissues5
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extracellular matrix24
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extracellular matrix35
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extracellular matrix15
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extracellular matrix6
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extracellular matrix6
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communication between cells6
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communication between cells9
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communication between cells47
