Depressed Skull Fracture

Depressed Skull Fracture

Depressed skull fracture, Its a type of fracture of one more fragments of bones press inward on the brain. Some individuals who have suffer this type of bone fracture in their heads can leave a normal life with no complications. Here is an x-ray imagine of a depressed skull fracture looks like.  

                                                  

Most cases of depressed skull usually occur to new born babies. These is because new born after their birth are still in the earliest process development, specially if their bones are still very fragile. The soft spot on the back of their heads that is called posterior fontanelle, where most fractures can easily occur. Bones are made up of calcium, phosphorus,sodium and other minerals, and protein collagen calcium which in need to make bones hard, which allows to support weight. Parts of our skull is form by flat bone. Flat bones are composed of two thin layers compact bone and cancellous bone. Depressed skull fracture can also happen to adults in a case of  a major activity accident. Many people who have Depressed skull injuries are in risk of brain trauma or death brain tissue. There are cases in which people have survive depressed skull fractures and have lived a normal life. 

Cartilage Joints

Encounter 

Cracking your knuckles joints does not cause arthritis.

     It has been said that cracking your knucles throughout your lifetime will eventually cause arthiritis. Seen I can remeber the bad habit of craking joints runs around my family. My mother specially cracks her finger approximately 5 or more times a day. It got to the point that when growing up she will crack her fingers first and will continue with mine. Now I have the same bad habit as her.
    I realize that I only crack my finger joints when I have anxiety, stress, and specially when I'm nervous. Cracking my knuckles has become an everyday thing and it got a lot worst when I started college.
The sound of cracking, popping, grinding and snapping noises can it be a harmless habbit?
    Cartilaginous joints are made of cartilage that binds bones together. Our fingers and joints are held in place by ligaments and tendons. The movement in our extremities are controlled by forearm muscles pulling on our finger tendons. Fibrous joints are compose of collagen fibers. Syndesmosis joints holds the ulna and the radious of the forearm together.
    Arthiritis is cause by inflammation of the joints. Many cases of arthritis are caused by autoimmune problems, bacterial infections or sexually transmitted diseases. Studies have been done among the worst knuckle crackers and the results have shown no signs of arthritis. However, the more the joints are cracked over time, more damage to the ligaments and tendons, that can reduce the grip and stregth of the fingers.
    My mother is now 45 years old and she has never suffer from any type of arthritis, but over the pass few years she has suffer of pains and cramps in her hands. If I keep cracking my knucles I might have the same ligaments and tendons problems in the future. 

Ghost Heart

Ghost Heart!

   The medical miracle is called. It's a big step closer for millions of people who are in need of new organs. The "ghost heart" is an experimental framework for growing new humans hearts. The "ghost heart" in the picture below has been decelluralized. What does this mean? Decellularization is a tissue engineering technique design to remove all the cells from a donor organ, leaving nothing but connective tissue that used to hold the cells in place. The donor heart can then be reseeded with a patient's own cells. The goal of this experiment is to regenerated an organ that can be transplanted into the patient without fear of tissue rejection.  It's called "ghost organ" for it's pale and almost translucent appearance.

Histology Terminology

Natalia Tamayo

Aplasia- Lack of development of an organ, tissue, or cell.
Histophology- The study of diseases in the tissue.
Hemopoesis- Blood formation
Basement Membrane- A non-living of fibers that cements the epithelial to the under lying the connective tissue.
Stratified- Arranged in layers
Goblet cell- Solitary mucous that segregates and expels useful products.