week 5 quiz

Question 1

Name the neurotransmitter that acts on the neuromuscular junction in skeletal muscle

Answer 1

acetyl-choline

Question 2

The link between the generation of action potential in the sarcolemma and the start of muscle contraction is called _____ ______ coupling.

Answer 2

excitation-contraction

Question 3

Which type of muscle fibre allows for extremely quick contractions but fatigues quickly?

Answer 3

fast fibres

Question 4

`Which type of muscle fiber is supplied by extensive blood vessels?

Answer 4

Type I fibres

Question 5

The resting tension in a muscle is called muscle _________

Answer 5

tone

Question 6

In a(n) __________ contraction, the peak tension developed is less than the resistance, and the muscle elongates due to the contraction of another muscle or the pull of gravity

Answer 6

eccentric

Question 7

When energy reserves in a muscle are exhausted and lactic acid levels increase, __________ occurs.

Answer 7

fatique