Muscular System Flashcards

1
Q

What does the deltoid do?

A

Abduction
Outward arm action in a jumping jack

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2
Q

What do the pectorals do?

A

Adduction of the shoulder
Upward phase of a press-up

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3
Q

What does the tricep do?

A

Extend the elbow
Shooting in basketball

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4
Q

What does the bicep do?

A

Flex the elbow
Doing a bicep curl

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5
Q

What do the abdominals do?

A

Flex the trunk across the stomach
Performing a sit-up

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6
Q

What does the Latissimus Dorsi do?

A

Shoulder adduction
Butterfly stroke in swimming

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7
Q

What do the quadriceps do?

A

Extend the knee
Kicking a ball

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8
Q

What do the hamstrings do?

A

Flex knee
Performing a hamstring curl

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9
Q

What do the gastrocnemius do?

A

Plantar flexion of the ankle (pointing the toes downwards)
When cycling

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10
Q

What does the tibialis anterior do?

A

Dorsiflexion of the ankle (bringing the toes up towards the shin)
Foot making contact with a football

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11
Q

What is an isotonic contraction?

A

When a muscle contracts and changes length

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12
Q

What is an isotonic concentric contraction?

A

Involves the muscle shortening

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13
Q

What is an isotonic eccentric contraction?

A

Involves the muscle lengthening whilst it is under tension.

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14
Q

What is an isometric contraction?

A

This involves a muscle producing tension but staying the same length.

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15
Q

What’s an agonist muscle?

A

The muscle that is contracting

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16
Q

What’s an antagonist muscle?

A

The muscle that is relaxing or lengthening