The Human Skeletal System

The Human Skeletal System

By Arlita Daniels

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Function of structures in the Skeletal system

​Functions of the skeletal system

1. Support- holds the body upright and off the ground, prevents the organs from crushing one another ​

2. protection- some bones protect delicate organs from injury

3. Movement and locomotion- many bones act as levers which help us to lift objects or to move ​​

The Human Skeletal System

4. Muscle attachment- Muscles are attached to the bones by a tough inflexible connective tissue called the tendon. the bones give the body stability while the muscles help the bones to move

5. Production of red and white blood cells - the bone marrow in the long bones of the legs and the short bones that make up the ribcage regularly produce new red and white blood cells.

6. Storage of calcium and and phosphorus salts- Calcium and phosphorus salts are what give bones their strength. when we eat these minerals in our diet, the bones and teeth store them. ​

Integrated Science

The Human Skeletal System

Multiple Choice

Where two bones meet is known as a

• suture

• joint

• pivot

• hinge

Fibrous Joints in the cranium are called sutures

Multiple Choice

Joints that allow for a wider range of movement are called

• sutures

• fixed

• synovial

• cartilaginous

​What is the function of the synovial fluid ?

What is the fucntion of the cartilage? ​

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The rounded end of a long bone (the ball) fits into the socket or hollow of another. this joint allows circular movement in 360 degrees. eg. hip, shoulder

​​Ball and Socket

​This joint allows movement such as when a door opens or closes, e.g elbow, knee

​​Hinge Joint

​This joint allows rotation eg, neck vertebrae, which allow the head to move left to right, up and down and around

​​Pivot

​the plane joint is also known as the gliding joint only allows the bones of the joint to slide over each other eg, carpals and wrist

​Plane Joint

Multiple Choice

• ball and socket

• pivot

• plane

• hinge

Multiple Choice

• hinge

• Pivot

• Plane

• ball and socket

Multiple Choice

• Pivot

• Hinge

• plane

• Ball and socket

Multiple Choice

• Pivot

• Hinge

• Ball and socket

• plane

State two things you learned today?

Place your response in the chat box. ​

​The Human Skeletal System