Brought to you by Healthbase www.healthbase.com info.hb@healthbase.com 1-888-MY1-HLTH


Healthbase is the trusted source for global medical choices, connecting patients to leading hospitals around the world, through secure and information-rich web portal. To learn more, visit: http://www.healthbase.com Login to get FREE quote. Access is free.Healthbase Logo

Composition of a Bone

The bone has five main functions
1. Support: They support the body.
2. Protection: They keep organs away from damage, such as the rib cage and the skull.
3. Movement: The joints allow for movement.
4. Storage: The bone stores fat and some minerals.
5. Blood cell formation: The bone is the place that most of your blood components are made.

Composition of the Bone
The inside of the bone is made of three primal tissue layers: periosteum-sound, compact bone, and spongy bone.

Periosteum
The periosteum is a glistening double layered tissue which covers the hard bone called the compact bone. The periosteum can not be seen by the naked eye. The periosteum is exceedingly important since its lower layer houses bone forming cells called osteoblast-sound. Also, the double layer serves as a place where tendons and ligaments can insert and anchor into the bone.

Compact Bone
Compact bone seems very hard when seen by the normal eye, but at a microscopic level, the compact bone is very hollow. Canals called canaliculi-sound, which are filled with blood vessels, channel through the bone and all join to many major canals called Haversian canals-sound. These canals make the bone hollow. The compact bone is also rich with nerves. The hardness of the bone is made by spider like ostecytes-sound, mature bone cells, which surround the caniculli and Heversian canals.

Spongy Bone
Spongy bone is not exactly spongy. Towards the center of the bone, the bone gets hollower. This is why it is called spongy. Located within the spongy bone is red bone marrow-sound and yellow bone marrow-sound. Red bone marrow is what makes red blood cells. The majority of the red bone marrow for an adult is located in the head of the femur and humerus. Yellow bone marrow is stored fat. This marrow can sometimes turn in to red bone marrow when a person is very anemic.

Parts of a bone
The diagram below shows a “typical” bone.

bone.gif

    Hyaline cartilage Cartilage covers the ends of the bones. The smooth surfaces stops the bones rubbing together and absorbs shock.Epiphysis This is the name for the extremity of the bones.Cancellous bone This is sometimes called Spongy Bone and stores the red bone marrow where blood cells are manufactured.Epiphyseal plate A line across the bone from where the bone grows in length.

    Diaphysis The shaft of the bone.

    Compact bone The word “compact” suggests a hard part of the bone. It surrounds the yellow bone marrow in the diaphysis and gives strength to the hollow part of the bone.

    Periosteum Where there is no hyaline cartilage, the periosteum covers the surface of the bone. Ligaments and tendons are attached to the periosteum.

    Medullary cavity This space inside the diaphysis contains the yellow bone marrow.

Healthbase is a medical and dental tourism facilitator that connects patients to leading JCI/JCAHO/ISO accredited hospitals and dental offices overseas through a secure, high-tech, information-rich web portal. Healthbase provides a wide range of medical procedures through its partner hospital network. Over two hundred medical procedures are available in various categories: cosmetic and plastic, orthopedic, dental, cardiac, and many more. The savings are up to 80 percent from typical US prices even after adding up the travel costs, hospital stay and other related expenses. Healthbase offers more than just procedural availability; we also provide customers with extensive information on medical treatments, hospital and doctor profiles to help them make an educated decision regarding their treatment; travel planning and booking; applying for medical/dental loan and much more.

To learn more, visit http://www.healthbase.com and login to view our extensive hospital profiles including pictures of operating rooms, patient rooms, doctor qualifications, and lots more. Get a FREE quote now!!

Note: All information presented here has been obtained from publicly available medical resources and is here for reference purposes only. Healthbase does not claim to be a medical professional and does not provide any advice on any issues relating to medical treatment.

1-888-691-4584     Best viewed with Firefox1.5+ and IE6 | Sitemap | Powered by Healthbase.com

About these ads