Functions of the skeletal system Flashcards
What are the 6 vital functions of the skeletal system?
Support Movement Protection of vital organs Storage of minerals Blood cell production Shape
How do the bones support the human body?
The bones of the skeleton provide a framework to keep the body in a stable, upright position. The bones also form spaces to support the organs and keep them in place. For example the cranium holds the brain in place.
How do the bones provide movement for the body?
Muscles are attached to the bones by tendons. When the muscles contract and shorten, they pull on the bones, moving them. For example, the bicep muscle contracts, shortens and pulls on the bones of the forearm (radius and ulna), moving it.
How do the bones provide protection of vital organs?
The hard bones of the skeleton cover the softer, more delicate parts of the body (organs and tissues) and prevent damage. For example, when a boxer is punched in the head, the cranium protects the brain.
How do the bones store minerals?
The bones store calcium and phosphorus; minerals are important for bone growth and strength.
How do the bones produce blood cells?
The bone marrow in the centre of some bones makes red and white blood cells. Red blood cells transport oxygen to the working muscles while white blood cells help to fight of infection.
How do the bones provide shape?
The bones provide the basic structure of the body and partly determine how an individual appears. For example, bone length determines whether a person is tall or short.
