Directional Terms

When I went through my Anatomy and Physiology book I learned all the different ways the body could be put into while in the anatomical position. I put all the directional terms and photos, as well as the information about each term in the slideshow above. Enjoy! :)

Organizational Structure of the Body

Organizational Structure of the Body on Prezi

Awhile back I did a packet on The Human Body: An Orientation. I had to:

1. Successfully put the levels of structural organization in order
2. Identify and color each body system
3. Learn vocabulary
4. Understand how Homestasis works
5. Correctly labels all body areas of body sections
6. Label and color each body cavity

When I was finished with the packet I threw all that I learn, minus all the vocabulary, in a Prezi presentation which I put below. By doing this it taught me a lot about the body and how many structures and sections the body really has that either helps it operate, or just keep it together. The packet was very helpful to my learning experience to the body, and I hope my Prezi presentation will help you as well. :)

The Body Shop

For this blog I read the article on page 1 called "The Body Shop". Here is the link to the webpage: 
http://www.pbs.org/saf/1107/features/body.htm


Recently, I read an article that explained how science is going into scientifically growing human body parts. Scientists like Bon Langer and Joseph Vacanti were called the pioneers of this increasingly experimental process. They were almost unsuccessful at showing others their work at first when both Langer and Vacanti couldn't even get there work published. Now, today, the first tissue engineered skin is called "Neo-organ" and was approved by the U.S. Food and drug administration. This could lead to many great things in the future like custom-made hearts, livers, breasts, corneas, kidneys,  and bone marrow. Some bladders could even be made, which could offer solutions to a lot of  life-threatening illnesses. Although this may take years upon years to accomplish, the idea of this actually coming true is amazing!


The fascinating part about this is by scientists doing this process they have already attempted and succeeded in growing an ear off of a mouse. Scientists had to combine the right kind compounds so that they could coax cells into growing and proliferating. They also had to pay special attention to the cells surroundings in order to make useful tissue. Which is good because I'm sure no one would want an ear created for them that didn't work because it wasn't biologically useful to them.


The whole process of growing an ear on a mouse was pretty remarkable to read about. First, tissue engineers actually mold the biodegradable scaffold into the proper size and shape for a human. Then, Researchers "seed" the scaffold with new cartilage cells and surgically implant the mold under the skin. The mouse, which is hairless and is specially bred to lack an immune system so that the human tissue won't reject it, takes care of the ear as the cartilage cells grow. As you can see from the picture that I posted below, the result comes out to ear grown on the mouse with a good shape and size. When the ear is removed from the mouse, the mouse is left unharmed and still in a healthy condition.


Eventually scientists are looking forward to trying to get the cells grow on their own through the body. They think by implanting the "seeds" into an ailing organ they can get to the scientific level of the body generically growing a "patch" of healthy tissues through its biochemistry. The shape of how the organ isn't so much important to them right now according to Joseph Vacanti. He stated, "Both functions are important but, in many circumstances, the shape is less important than the exchange of nutrients. "


I, for one, believe that if all goes well this will be a great scientific step in the world. There are a lot of people just in the U.S. that have been on waiting on lists for a transplant for a very long time. If scientists were able to help patients grow their own body parts that they needed think about about lives would be saved! I hope that all turns out good in the scientists experiments, because hey, you never know, I could be needing a body part when I'm older or something. Or even my children could. If this process is successful it will be a worldwide, life-changing process for everyone involved.

Histology Lab

Connective

1. Hyaline Cartilage

• Amorph, firm matrix with imperceptible network of collagen fibers 
• Chondrocytes lie in lacunae 
• Supports reinforces cushions and resists compressionForms the costal cartilage
• found in embryonic skeleton the end of the long bones nose trachea and laryn

2. Ground Bone, cs. Human

• Ring ring tree bark 

3. Ground Bone Compact

• some ring like tree bark

Epithelia

  1. Columnar Epithelia simple ciliated

• Branch like also looks like sponge

  2. Transitional Epithelia

• Several cell layers basal cells are cuboidal surface cells are some shaped
• Stretches to permit the distension of the urinary bladder
• Lines the urinary bladder ureters and part of the urethra

  3. Pseudostratified  Epithelia

• Single layer cells with different heights; some do not reach the free surface
• Nuclei are seen at different layers
• Function in secretion and propulsion of mucus
• Present in the male sperm-arrying ducts (non-ciliated) and trachea (ciliated)

Musle

1. Striated Muscle Teased Human

• Single Cells with bunch of things in the middle 

2. Cardic Muscle is human

• Branching striated uninucleate cells inter-locking at intercalated
• Propels blood onto circulation
• found in the walls of the heart

3. Muscle Cardic Purkinje Fibers

• long thin fibers that allow for stretch

Nervous

1. Neuron Motor

•  vein look like 
• some dark areas
• spider web look like

2. Brain Basal Ganglia 

• Packed Together