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WorksheetsMuscle Contraction
Total questions: 20
Worksheet time: 12mins
__________ is attached to the Z line?
myosin
actin
thick filament
troponin
What is the contractile unit formed from Z line to Z line?
Sarcomere
T Tubule
Sarcoplasmic reticulum
Fascicle
____________ attaches to actin to form the cross bridge.
Troponin
Tropomyosin
Myosin
Calcium
What does calcium attach in a muscle contraction?
Myosin
Tropomyosin
Troponin
Actin
What is released from the sarcoplasmic reticulum?
Inorganic phosphate
ADP
Calcium
ATP
What is the name of the neurotransmitter released at a neuromuscular junction?
Calcium
Acetylcholine
Dopamine
Troponin
What causes the muscle to stop contracting?
Lack of effort
Myosin-Heads fail to attach
Calcium Ions are pumped away
Muscle fibre tears
Another name for the prime mover is
antagonist
agonist
synergist
fixator
A muscle that helps the agonist is called a
antagonist
agonist
synergist
fixator
What is the opposing muscle group for the biceps?
abdominals
triceps
deltoids
hamstrings
What is the opposing muscle group for the quadriceps?
biceps
lower back
hamstrings
obliques
In knee flexion, which is the agonist? (the one contracting or getting shorter)
hamstrings
quadriceps
Antagonist muscles in the squat pose would be?
hamstrings
quadriceps
What is the agonist and what is the antagonist in a bicep curl?
biceps are the agonist, triceps are the antagonist
triceps are the agonist, biceps are the antagonist
