Soc 11: The Skeletal system

Question 1

The skeletal system

Answer 1

Skeletal system includes all of the bones and joints in the body each bone is a complex organ that is made up of many cells, protein fibres and minerals.

Question 2

Protection of vital organs

Answer 2

Staying safe is important in sport and the skeleton plays a key role. E.g. skull protects the brain.

Question 3

Muscle attachment

Answer 3

The muscle used in sport need to be strong points to a attach to and bones provide the framework muscles are attached to bones by tendons.

Question 4

Joints for movement

Answer 4

Do you want to allow the body to make a variety of movement. Some small movements, like getting a grip of a javelin and larger ones, such as throwing a javelin.

Question 5

Storing calcium and phosphorus

Answer 5

The bones act as a store for calcium and phosphorus, two minerals that are vital for developing and maintaining the strong and healthy bones you need for exersice.

Question 6

Red or white blood cell production

Answer 6

When oxygen content drops, the number of red blood cells goes down bone marrow makes more red blood cells; if you have an infection, it makes more white blood cells.

Question 7

Long bone

Answer 7

Long bones are longer than they are wide. They don’t have to be big, small bones like the finger bones (phalanges) count as long bones. A long bone has a shaft at each end.

Generate movement (leavers) / strength

Question 8

Short bone

Answer 8

Short bones are generally the same size in length, width and thickness. The only short bone in the carpals (cuffs) in the wrist and the tarsals (toes) in the foot.

Weight - bearing

Question 9

Flat bone

Answer 9

Flat bones usually protect organs or offer a good surface for muscles to attach to. For exsample, the ribs protect the heart and the lungs, while the broad scapular has three muscles to attch to it. Other flat bones are; scapular, cranium and clavicle.

Question 10

Irregular bone

Answer 10

Irregular bones have odd shapes and vary in function. An example is the vertebrae which help protect the spinal column and the sacrum which has lot’s of attachment points.

Protect / generate movement