Unit 1 P.E AOS 1 revision

What is a motor unit made up of

• All the muscle fibres within a given muscle

• A motor neuron and the muscle fibres it innervates

• All the neurons going into an individual section of the body

• A fascicle and a nerve

The cross bridges during muscle contractions continue to detach and reattach themselves from the

• Myosin filaments

• Sarcomere filaments

• Actin filaments

• Muscle fibre filaments

The pair movement of muscle is called

• agonist

• antagonist

• all or nothing

• reciprocal inhibition.

Pushing against an immoveable wall is an example of what type of muscular contraction?

• Concentric

• Isometric

• Eccentric

• Isoinertial

The movement that causes the angle of the joint to decrease is

• Extension

• Flexion

• Abduction

• Adduction

Bones are attached to each other by

• Ligaments

• Tendons

• Joints

• Connective tissue

The tarsals of the foot are examples of a

• Long bone

• Flat bone

• Short bone

• Irregular bone

From inferior to superior, the curvatures of the spine are the

• Cervical, Thoracic, Lumber,

  Sacral,

  Coccyx.

• Coccyx,

  Sacral,

  Lumber, Cervical, Thoracic.

• Cervical,

  Sacral,

  Lumber, Thoracic,

  Coccyx.

• Coccyx, Thoracic,

  Sacral,

  Lumber,

  Cervical.

What is an example of a social barrier to physical activity.

• Boredom

• Availability of public transportation

• Lack of encouragement, support, or companionship.

• Lack of motivation

Which of these are autoimmune disorder

• Rheumatoid arthritis

• Osteoporosis

• Broken bones

• osteopenia