Flashcards in 1.1 The structure and functions of the musculo-skeletal system Deck (92)
What is the musculo-skeletal system made up of?
Muscles and bones
Name the 5 functions of the skeleton
1. Protection of vital organs
2. Muscle attachment
3. Joints for movement
4. Platelet, red and white blood cell production
5. Storage of calcium and phosphorus
How does the skeleton protect vital organs in sport?
The hard bones of the skeleton protect vital organs from being damaged. For example if a ball hits a person's chest the ribs protect the heart and lungs
Give two examples of bones that protect vital organs
Cranium protects the brain
Ribs protect the heart and lungs
Why is it important the skeleton allows muscle attachment?
Muscles need to attach to bones (via tendons) so that when they contract movement can occur
How does the skeleton's function of 'joints for movement' aide a sports performer?
Where two bones meet a joint is formed.
When the muscle attached to the bones (via a tendon) contracts it pulls on the bones. Where the bones form the join, movement occurs.
Why is it important for a person to have a good store of calcium and phosphorus?
Both these minerals help to keep bones strong and healthy. Strong and healthy bones are needed for exercise.
Red blood cells are needed for...
Carrying oxygen around the body
White blood cells are needed for...
Helping the body fight infection
Platelets are needed for...
Clotting the blood. It is platelets that form a scab when you cut yourself
There are 4 different classification of bones. What are they?
What is the main characteristic of a long bone?
Longer than they are wide
What is the main characteristic of a short bone?
Roughly the same size in length, width and thickness
What is the main characteristic of a flat bone?
Thin and flat
What is the main characteristic of an irregular bone?
What is the main function of a long bone in sport?
Acts as a lever to create movement
What is the main function of a short bone in sport?
Weight bearing and shock absorbing
What is the main function of a flat bone?
What is the main function of an irregular bone?
Specific function - vertebrae allow head to nod and rotate
Name three long bones
Name two short bones
Name three flat bones
Name the main group of irregular bones
How many bones is the vertebral column consist of?
How many bones are in the cervical region of the vertebral column?
How many bones are in the thoracic region of the vertebral column?
How many bones are in the lumbar region of the vertebral column?
How many bones are in the sacrum?
How many bones make up the coccyx