Muscle contraction - sliding filament theory

Question 1

SFT step 1

Answer 1

Action potential arrives at neuromuscular junction

Question 2

SFT step 2

Answer 2

This causes the release of acetylcholine

Question 3

SFT step 3

Answer 3

Sodium channels open - action potential in sarcolemma

Question 4

SFT step 4

Answer 4

Release calcium

Question 5

SFT step 5

Answer 5

Myosin binds to actin

Question 6

SFT step 6

Answer 6

Actin and myosin slide over each other, resulting in a muscle contraction

Question 7

SFT step 7

Answer 7

force transmitted through tendon, which pulls on bone to generate movement