The Vertebral Column - LESSON 211

-
There are totally 26 bone segments compose the vertebral column or spinal column.  We can arrange these 26 bones of the vertebral column in to five divisions, such as
1.  Cervical (7)
2.  Thoracic (12)
3.  Lumbar (5)
4.  Sacral (1)
5.  Coccygeal (1)

Now we will see about these one by one now.  Okay.

1. Cervical (cervix) Vertebral Bones:  These are the first set of bones in the spinal column of 26 bones.  Cervical spine bones are 7 in number.  They are called as C1, C2, C3, C4, C5, C6, and C7. 

2.  Thoracic (thorax) Vertebral Bones:  This bone segment is the second set of the vertebral column.  Thoracic bones are 12 in number.  They are known to be T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, and T12.  These 12 bones attach with 12 pairs of rib bones on both sides.

3.  Lumbar (lumbar) Vertebral Bones:  These bones are 5 in number.  Lumbar bones are the third set of vertebral bones.  These bones are large in structure comparing other sets of bones and stronger than other vertebral bones.  They are called as L1, L2, L3, L4, and L5.

4.  Sacral (sacrum) Vertebral Bones:  This set is four in the vertebral bones.  This bone is 1 in number.  Actually sacral bones are five in number, but they are fused together and looks like one bone.  Sacral bones are separated when one child born, but in the lateral years these five bones got fused into one another and resemble like they are one number.

5.  Coccygeal (coccyx) Vertebral Bone or Tailbone:  This is the final fifth set of the vertebra column.  This bone is 1 in number.   These bones are actually four in number when a child born, but in the later years they fuse to become one bone in structure similar to the sacral bones.  The name of this bone is coccyx bone or tailbone.

Other vertebral bone structures related to the vertebral bones:

1.  Vertebral Body:  Each vertebral bone or vertebra consists of a disk-like region in the inner part.  This is thick in structure and called as vertebral body.

2.  Cartilaginous Disks:  Between each two vertebral bones there is a shock-absorber like or a cushion-like structure called a disk or disc.  These cartilaginous disks give support and elasticity to the vertebral bones when we are in movement.

3.  Vertebral Arch:  In the posterior part of each vertebral bone, there is an arch-like structure that consists of lamina, transverse process, and spinous process.

4.  Neural canal:  This is a space between the vertebral arch and vertebral bodies.  Spinal cord containing nerves from the brain to the lower organs and systems pass though this neural canal only.

This concludes vertebral body anatomy.  In the next lesson, we will learn about Thorax and Pelvis bones.  Okay.

Come on.

To go to the next lesson from here please click the link below.

To go to the prior lesson from here please click the link below.
http://learn-free-medical-transcription.blogspot.com/2010/07/facial-bones-anatomy-lesson-210.html

Home Page: 
http://learn-free-medical-transcription.blogspot.com/

Comments

Post a Comment

Popular posts from this blog

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

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

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, volc...
Read more