Voluntary muscle movements

Question 1

Name 4 antagonistic muscle pairs.

Answer 1

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

Question 2

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

Answer 2

AGONIST MUSCLE: bicep

ANTAGONIST MUSCLE: tricep

Question 3

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

Answer 3

AGONIST MUSCLE: quadriceps

ANTAGONIST MUSCLE: hamstrings

Question 4

Name the agonist and antagonist muscle when doing a situp.

Answer 4

AGONIST MUSCLE: rectus abdominals

ANTAGONIST MUSCLE: erector spinae

Question 5

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

Answer 5

AGONIST MUSCLE: pectoralis major

ANTAGONIST MUSCLE: trapezius

Question 6

What are the 3 types of muscle contraction?

Answer 6

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

Question 7

In concentric contraction does the muscle shorten or lengthen?

Answer 7

shortens

Question 8

In Eccentric contraction does the muscle shorten or lengthen?

Answer 8

lengthens

Question 9

In Isometric contraction, does the muscle shorten or lenghthen?

Answer 9

neither, it does not change in length

Question 10

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

Answer 10

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

Question 11

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

Answer 11

the bicep muscle is demonstrating eccentric contractions

Question 12

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

Answer 12

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

Question 13

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

Answer 13

One muscle contracts while the other relaxes

Question 14

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

Answer 14

Agonist

Question 15

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

Answer 15

Antagonist

Question 16

Antagonistic pairs work together to provide movement of the what?

Answer 16

Movement of the joints

Question 17

In what type of muscles do you find antagonistic pairs?

Answer 17

Skeletal or voluntary or striated

Question 18

What connects muscles to bones?

Answer 18

Tendons

Question 19

How do muscles move the bones?

Answer 19

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

Question 20

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.

Answer 20

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

Question 21

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

Answer 21

The QUADRICEPS are the AGONIST and the HAMSTRING is the ANTAGONIST