Physiology · Muscular System · Medium
Actin
Meaning: The thin filament protein in muscle cells that interacts with myosin to produce contraction.
In practice: Thin filaments of actin slide past thick filaments during contraction.
Quick check
Two questions on related physiology words.
Which word means: The breakdown of stored triglycerides into free fatty acids and glycerol to release energy.
Answer: Lipolysis
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Answer: Glucocorticoid
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