Muscle Contraction

Muscle Contraction

Multiple Select

Which is an example of an isometric muscle contraction?

• Plank

• Wall sit

• Crucifix (in gymnastics)

Multiple Choice

How many isotonic muscle contraction types are there?

• 1

• 2

• 3

• 4

Multiple Choice

Which isotonic contraction type is where the muscle is lengthening?

• Concentric

• Eccentric

Multiple Choice

Which is an example of a concentric contraction?

• Plank

• Downward phase of a bicep curl

• Upward phase of a bicep curl

Multiple Choice

Muscles contract by......

• Pushing

• Pulling

Multiple Choice

Which looks to stabilize a joint during movement?

• Synergist

• Agonist

• Antagonist

• Fixator

Multiple Choice

How many stages is the sliding filament theory?

• 1

• 2

• 3

• 4

• 5

Multiple Choice

A nerve impulse starts the sliding filament theory.

• True

• False

Multiple Choice

Which disappears as muscle shortens?

• Z line

• H Zone

• H line

• Z Zone

Multiple Choice

What is the energy source required to allow actin and myosin to consistently attach and reattach (contract)?

• ADP

• ATP

• PAD

• TAP

Multiple Choice

Which will reattach to actin to prevent the crossbridge?

• Sarcomere

• Sarcoplasmic Reticulum

• Calcium

• Tropomyosin