Neuromuscular System Adaptations - Long-Term Exercise

Neuromuscular System Adaptations - Long-Term Exercise

Multiple Choice

What is a motor unit?

• Medulla Oblongata

• The properties of a muscle fibre

• Neuromuscular Junction

• A motor neuron and its muscle fibres

Multiple Choice

What is the process of either all or none of the muscle fibres in a motor unit contracting known as?

• Maximum contraction

• All or nothing law

• Motor unit recruitment

• Sliding filament theory

Multiple Choice

Can a motor unit partially contract?

• Yes

• No

Multiple Choice

What happens if the threshold is met or surpassed?

• Motor unit relaxation

• Motor unit contraction

• Partial motor unit contraction

Fill in the Blank

When an impulse reaches a muscle fibre - what is this known as? (Think back to the sliding filament theory)

Multiple Choice

A muscle is made up of multiple motor units

• True

• False

Multiple Choice

Do all motor units in a muscle always contract at the same time?

• Yes

• No

Fill in the Blank

What is the speed of activation of and the number of motor units recruited known as?

Fill in the Blank

What is the name of the neurotransmitter at the neuromuscular junction?

Fill in the Blank

At the neuromuscular junction - what does acetylcholine take the impulse across?

Fill in the Blank

At the neuromuscular junction - what does acetylcholine take the impulse across?

Multiple Choice

What is nervous inhibition?

• The increase of an action potential

• A way to allow for maximum contraction

• The cause of the anticipatory rise

• A protective mechanism that prevents a muscle from overworking

Fill in the Blank

What is a GTO?

Fill in the Blank

What is a GTO?

Multiple Choice

The role of a GTO is to detect levels of tension within a muscle

• True

• False

Multiple Choice

High intensity training can increase the threshold of the GTO

• True

• False

Multiple Choice

What will this increase in threshold achieve?

• Less powerful muscle contractions

• More powerful muscle contractions

Open Ended

Why could the increase in threshold cause injury?

Poll

Today's session I

• Fully understand

• Partially understand

• Didn't understand

Open Ended

What areas would you like to revisit?