Structure and Functions of the Musculo-skeletal System

Question 1

What are the Functions of the Skeletal system?

Answer 1

Movement
Support
Protection
Production of blood cells
Store minerals
Structure

Question 2

Describe the different parts of a synovial joint and their functions

Answer 2

Synovial Capsule: Fibrous, encloses the joint

Synovial Membrane: Produces synovial fluid which lubricates the joint and becomes more lubricating when it is warm. Moving regularly means that the synovial membrane produces more fluid

Cartilage: Lines the end of the bone, acts as a cushion/shock absorbing and stops bones from rubbing against each other. Has no blood supply, so it can’t re grow

Question 3

What are Ligaments?

Answer 3

• Stabilise joints
• Connect bone to bone

Question 4

What are tendons?

Answer 4

Muscle to bone

Question 5

What’s Bursae?

Answer 5

• Fluid filled sacks that prevent rubbing and damage of hard structures hitting onto softer structures

Question 6

What’s isometric contraction?

Answer 6

Muscle stays same length under tension

Question 7

what’s the agonist in downwards phase of a push up

Answer 7

triceps

Question 8

Explain how the skeletal and muscular system work together to bring about movement.

Answer 8

Muscles are attached to bones by tendons (1)
* When muscles contract they pull on the bones to create movement (1)
* Muscles work in (antagonistic) pairs (1)
* When one muscle in the pair is contracting (agonist) the other is relaxing (antagonist) (1)