SOC 12 : The Skeletal System Flashcards
What is the Skeletal system?
The skeletal system includes all of the bones and joints in the body. Each bone is a complex living organ that is made up of many cells, protein fibers, and minerals.
What are the 5 functions of the skeletal system?
- Protection of vital organs
- Muscle attatchment
- Joints for movement
- Storing calcium and phosphorus
- Red and white blood cell production
Why is Protection of vital organs a function of the skeletal system?
Staying safe is important in sport and the skeleton play a key role. E.g. the skull protects the brain and the ribs protect the internal organs, including the heart.
Why is Muscle attachment a function of the skeletal system?
The muscles you use in sport need strong points to attach to and bones provide that framework.
Muscles are attached to bones by tendons.
Why is Joints for movement a function of the skeletal system?
Joints allow the body to make a variety of movements. Some are small movements, like getting a grip of a javelin and larger ones, such as throwing a javelin.
Why is storing calcium and phosphorus a key function of the skeletal system?
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 exercise. The best sources for both minerals are milk, cheese and yoghurt. Phosphorus helps to reduce muscle pain after exercise.
Why is Red and White blood cell production a key function of the skeletal system?
When the oxygen content drops, or the number or red blood cells goes down, your bone marrow makes more red blood cells; if you have an infection, it makes more white blood cells.
Where is the Clavicle located?
The collar bone
Where is the Humerus located?
Upper part of Arm
Where is the Sternum located?
Central part of chest
Where is the pelvis located?
At the sides of your hip
Where is the radius located?
Outside part of forearm
Where is the ulna located?
Inner part of forearm
Where is the femur located.
In your thigh
Where is the patella located?
Knee-cap
