FORMATION OF HUMAN BONES - 2 - LESSON 198

-
Now in this post we would learn about the remaining part of formation of bones.

This Ossification is also called Osteogenesis which is the process of laying down new bone material by cells. Intramembranous ossification involves primitive connective tissue called mesenchyme, while endochondral ossification involves cartilage as a precursor. In most of the fracture, endochondral osteogenesis the most commonly occurring process healing can be done for the long bones which is treated by plaster of paris.

Then what is intramembranous ossification?

This ossification mainly occurs during formation of the flat bones of the skull but also the mandible, maxilla, and clavicles.

Then what is Endochondral ossification?

This ossification occurs in long bones and most of the rest of the bones in the body. An initial hyaline cartilage which continues to grow is involved.

 Not only are calcium and phosphorous part of the hard structure of bone tissue but calcium is also stored in bones and small quantities are present in the blood. Nerve fibers are unable to transmit impulses effectively to muslces if the proper amount of calcium is lacking in the blood. These hart muscle becomes weak, and muscles attached to bones undergo spasms.

The sufficient level of calcium in the blood is maintained by the parathyroid gland that secretes a hormone to release calcium from bone storage. More of the hormone is caused by tumor or other pathological process will increase blood calcium at the expense of the bones, which become so weak by the loss of calcium.

The growth in the length of the bones continues until the age of 25. The full length of bone is attained by the main deposition of calcium on the epiphyses.

 In the next lesson we will learn about the structure of the bone.

Okay.

To go to the next post please click the link below

Home Page:

Comments

Post a Comment

Popular posts from this blog

IMPORTANT RADIOLOGY NUCLEAR MEDICINE TERMS-3-LESSON 148

-
1. Magnetic resonance imaging- A magnetic ground radio signals are used to outline sagittal, coronal, and axial pictures of the body. 2. Megavoltage- High-energy radiation engendered by means of an equipment and employed in restorative x-ray analysis intended for cancer. 3. Nuclear medicine- This is a medical speciality, which examines and employs of radioactive materials called radionuclides within identification and treatment of ailment. 4. Orthovoltage- Emission of low-energy radioactive waves that are employed in pain-killing radiation therapy and exterior skin cancer diseases. 5. Palliative- Means just soothing or painkilling, not curing completely that is not possible. 6. PET scan or positron emission tomography- Radioactive materials are administered using intravenous route and these substances give out positrons. They generate a cross-sectional picture of the metabolism of the body. These images symbolize local concentration of the radio
Read more

HUMAN BONE STRUCTURE - LESSON 200

-
Now in this post we will learn about the structure of the bone. In our human body there are 206 bones of different types are there. The thigh, lower leg, and upper and lower arm consists of long bones. These bones have large surface areas for muscle attachment and are very strong, are broad at the ends where they join with other bones. There are five types of bones in the human body. The five types are long, short, flat, irregular, and sesamoid. 1. Long bones:- These bones are comprised mostly of compact bone and lower amounts marrow, which is located within the medullary cavity, and spongy bone and are characterized by a shaft, the diaphysis, that is much larger in length than breadth. These bones are mostly present in the limbs, including those of the fingers and toes are long bones. Except the wrist, ankle, and kneecap these long bones are located in most. 2. Short bones:- These short bones are generally cube shaped and having a thin layer of compact bone surrounding a
Read more

The Longest Medical Word

-
Image
Today, we will know about an interesting medical term in medical language. This post is just to know about a different thing in the medical language, though this word is used very rarely in our day-to-day medical transcription work. The longest medical word is "Pneumonoultramicroscopicsilicovolcanoconiosis"!!!!!. Can you read at least Pneumonoultramicroscopicsilicovolcanoconiosis.  Now, we will see the meaning of this word.  To know the meaning shall we split the word by word. Okay.  1.  Pneumono 2.  Ultramicrosopic 3.  Silico 4.  Volcano 5.  Conosis. So, Pneumonoultramicroscopicsilicovolcanoconiosis comprises of 5 medical words and in combination, they give a meaning of a certain kind of disease condition related to lungs.  Now, we will see the meaning of each to get the combined understanding of the longest medical word. Pneumono means lungs, ultramicroscopic - means minute, silico means silicon, volcano means eruption, and conosis means abnorm
Read more