Voluntary muscle movements Flashcards

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1
Q

Name 4 antagonistic muscle pairs.

A

(1) biceps and triceps
(2) quadriceps and hamstring
(3) rectus abdominals and erector spinae
(4) pectoralis major and trapezius

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2
Q

Name the agonist and antagonist muscle when doing an arm curl.

A

AGONIST MUSCLE: bicep

ANTAGONIST MUSCLE: tricep

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3
Q

Name the agonist and antagonist muscle when sitting in a chair and raising the lower legs to be perpendicular to the body.

A

AGONIST MUSCLE: quadriceps

ANTAGONIST MUSCLE: hamstrings

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4
Q

Name the agonist and antagonist muscle when doing a situp.

A

AGONIST MUSCLE: rectus abdominals

ANTAGONIST MUSCLE: erector spinae

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5
Q

Name the agonist and antagonist muscle when He-Man brings his arms into the centre to punch both fists.

A

AGONIST MUSCLE: pectoralis major

ANTAGONIST MUSCLE: trapezius

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6
Q

What are the 3 types of muscle contraction?

A

(1) concentric
(2) eccentric
(3) isometric

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7
Q

In concentric contraction does the muscle shorten or lengthen?

A

shortens

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8
Q

In Eccentric contraction does the muscle shorten or lengthen?

A

lengthens

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9
Q

In Isometric contraction, does the muscle shorten or lenghthen?

A

neither, it does not change in length

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10
Q

In archery, how do muscles in the arm contract to extend the bow arm?

A

the archer’s work concentrically and the biceps work eccentrically.

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11
Q

As a dumb-bell is lowered what type of contraction is occurring in the bicep?

A

the bicep muscle is demonstrating eccentric contractions

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12
Q

When a gymnast suspends himself on the rings, what type of contraction is taking place in most of the muscles of his upper body?

A

isometric contractions of the abdominals, erector spinae,biceps, triceps, deltoids, trapezius, latissimus dorsi and pectoral muscles in his upper body.

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13
Q

In an antagonistic pair, one muscle does what while the other does what?

A

One muscle contracts while the other relaxes

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14
Q

In an antagonistic pair, the muscle that contracts is known as the what?

A

Agonist

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15
Q

In an antagonistic pair, the muscle that relaxes is known as the what?

A

Antagonist

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16
Q

Antagonistic pairs work together to provide movement of the what?

A

Movement of the joints

17
Q

In what type of muscles do you find antagonistic pairs?

A

Skeletal or voluntary or striated

18
Q

What connects muscles to bones?

A

Tendons

19
Q

How do muscles move the bones?

A

Muscles are connected to BONES via TENDONS. When the muscles CONTRACT, they pull on the BONES. This creates THE MOVEMENT.

20
Q

When a sprinter lifts his leg to push off the block, which muscle is the agonist (prime mover / contracts) and which is the antagonist (relaxes)?
When a sprinter pushes down on the block with his other leg which is straight, which muscle is the agonist and which is the antagonist.

A

The QUADRICEPS are the AGONISTS and the HAMSTRINGS are the ANTAGONIST
Vice versa

21
Q

When a striker straightens his leg at the knee to kick the ball, which muscle is the agonist and which is the antagonist?

A

The QUADRICEPS are the AGONIST and the HAMSTRING is the ANTAGONIST