Unit 1.1.b The Structure and functions of the muscular system

Question 1

Smooth Muscles

Answer 1

Found in the internal organs and blood vessels - this is involuntary

Question 2

Cardiac Muscles

Answer 2

Found only in the heart- this is voluntary.

Question 3

Skeletal Muscles

Answer 3

Attached to the skeleton - this is voluntary

Question 4

Involuntary Muscles

Answer 4

Not under our conscious control which means we can’t. make them contract when we think about it.

Question 5

Voluntary Muscles

Answer 5

Are under our conscious control so we can move these muscles when we want to. These are the muscles we use to make all the movements needed for physical activity and sport.

Question 6

Deltoid

Answer 6

Lifting the arm at the shoulder (the deltoid muscle has different arts which flex, extend and abduct the shoulder joint)
For example, lifting the arm to block a volley ball; upward arm swinging when trampolining.

Question 7

Trapezius

Answer 7

Shoulder horizontal extension (moving the arms backwards at shoulder level)
For example, preparation phase of an overarm badminton smash.

Question 8

Pectorals

Answer 8

Adduction of the shoulder (moving the arm towards the body); Shoulder horizontal flexion (moving the arms forwards in front of the body)
For example, the upwards phase of a press up; rugby player making a tackle.

Question 9

Triceps

Answer 9

Extension of the elbow (straightening the arm)

For example, shooting and chest passing in netball (execution phase).

Question 10

Biceps

Answer 10

Flexion of the elbow (bending the arm)

For example, drawing a bow in archery; ‘backstretch’ position during tennis serve.

Question 11

Abdominals

Answer 11

Flexion of the spine (sitting upwards).

For example, performing a sit up or a forward roll.

Question 12

Latissimus dorsi

Answer 12

Adduction of the shoulder (moving the a