- 1. By Raff & Shannon The Skeletal System
2. Contents
- What are the bones made of?
- What are the possible diseases?
- What other systems is it related to?
- What are the main parts of the skeletal system?
- Whats the strongest bone?
- What are the most sensitive bones?
3. Introduction
- The skeleton is a rigid structure of bones which provides an
anchor for the muscles and skin and protects vital organs.
- Imagine yourself as a piece of blob - you would have to have a
box to keep your head up, but thanks to the skeletal system you
wouldnt be a blob you would be a building held up by walls. Listen
carefully because there will be a quiz at the end.
4. The skull
- The skull or craniumis a protective cover of the brain ,and
provides a structurefor the face or head.
- The skull consistsof 28 bones or vertebrae.
- The skull is made of many bones that are closely fitted
together.
5. Information page The human body has 206 bones as a adult,
when you are born you have 300 bones.Bones are connected to each
other by ligaments. Organs are protected by the skeleton. The brain
is protected by the skull and the heart, liver and lungs are
protected by the rib and sternum. The skeleton serves many
functions; provides the shape of the body as well as supporting,
protecting and allowing movement, producing blood, and storing
minerals. 6.
- The arms consistsof 3 main bones and 15 other little ones.
- The humerus bone (above elbow to shoulder)
- The ulna bone (below elbow to hand)
- The radius bone (below elbow to hand)
arms 7. hands: There are 27 bones and 5 fingers in each hand.
Fingers are also called digits. The hand is very flexible with lots
of joints. The thumb is the most flexible thanks to the saddle
joint.hands 8. The Spine
- The spine has 33 vertebrae. The spine is not straight the
vertebrae forms an s-shape. There are three main parts of the spine
,they are the cervical, thoracic and the lumbar. In the centre of
the spine is the spinal cord.
9. The Ribcage
- The ribs, the spine and the sternum combine to make up the
ribcage. The sternum forms the front of the rib cage. There are two
pairs of floating ribs; floating ribs are ribs that only connect to
the backbone. The ribs are thin bones that curve around your
chest.
10. What are the possible diseases?
- Osteoporosis. Osteoporosis is a disease in the loss of bone
tissue.
- Rickets. Rickets is a disorder caused by a lack of vitamin D,
calcium, or phosphate. It leads to softening and weakening of the
bones.
- Arthritis . There are more than 100 diseases of arthritis.
Victims of arthritis suffer pain, stiffness, and swelling in their
joints.
- Osteoarthritis is the loss of the joints that becomes more
common with age. The knees and hands are most often affected, with
pain and stiffness
11. What are bones made of?
- Bones are made of calcium, mineral salt, cells and living parts
of your body. They also contain stringlike material called
collagen. Bones have a red and yellow tube called the marrow. The
marrow is a tube that makes red blood cells to replace the
destroyed and worn out ones. The marrow also stores fat and sugar.
An average of 2.6 million red blood cells are made every second by
the marrow. The outer layer is called hard bone, the spongy bone is
a honeycomb of bone cells with spaces between them.
12. Legs
- The human leg consists of 8 bones, 4 per leg. The legs main
function in the human is for support of the rest of the body. The
leg extends from just below the pelvic girdle to the ankle.
13. Does the skeleton system work with other systems?
- The skeleton gives the shape and goodness of the body. With no
skeleton, the body and its muscles would be a tissue on the floor.
Muscles attach to some bones which allows you to move your arms,
legs, etc. With no skeleton, muscle could not act. The skeleton
also allows tunnels for the circulatory vessels and nerves to
move.
14. Whats the strongest bone?
- The strongest bone in the body is the femur bone. The femur
bone is the longest and largest bone in the human body, made to
provide stability and strength. The femur is a solid and dense bone
that makes up most of the leg. Your height is roughly four times
the femur.
15. Most sensitive bones?
- The most sensitive bones in the human body are the:
16. Did you know?
- That giraffes and humans have the same amount of bones in their
necks? Giraffes just have much longer ones!
- Did you know? That the funny bone isnt actually a bone? Its a
nerve, located in the elbow, close to the humerus bone and thats
how it got its name.
17. Joints
- We can bend, swivel, stretch, pivot, and point. Our bodies can
perform more than one kind of motion because we have joints.
- You have over 230 moveable and semi-moveable joints in your
body.
18. Fractures
- There are many fractures.
19. The end