Practical 2 Title: Microtomy Aim: To make the tissue for microscopic examination. Introduction: Microtome is an instrument for cutting thin sections of a tissue, for microscopic examination. Microtomes will advance an object for a predetermined distance then slide the object to the cutting tool. There are a few types of microtome such as freezing microtome which is used for cutting frozen tissues, rotary microtome which is the one in which wheel action is translated into a back-and-forth movement of the specimen being sectioned and sliding microtome in which the specimen being sectioned is made to slide on a track. Materials: Microtome with accessories, tissue blocks, slides, adhesives (egg albumin), tissue floating bath. Parts of the microtome: …show more content…
Float your samples in water bath - Floating your samples on water helps remove wrinkles and allows for easy sorting. Use and care of microtome • Place the microtome on a table with the advancement handwheel on the right hand side • There is a locking lever at the top of the handwheel which prevents forward rotation of the wheel when moved beyond the handle. To unlock the wheel, move the lever toward the front of the instrument. • The rotary handle of the microtome must always be set in the locked position when changing a paraffin block or the blade. • Removal of the blade: Disposable blades must always be removed using forceps or a similar instrument. Do not remove the blade holder from the microtome with a blade present or transport the housing with the blade present. For microtomes with reusable blades cut resistant gloves must be used when removing and sharpening the blade. New blade should be placed in the blade holder and fastened before the wheel is unlocked. • Make sure the set screws and levers on the clamp, and the knife holder are firmly tightened before cutting to avoid vibration. • After use the microtome is cleaned by brushing or wiping off any ribbon fragments. Paraffin residue may be removed from the knife holder using
Plasma cutting technology is today used in a broad range of industries including, manufacturing, construction and so on. Even lock technicians use this technology to open locks as well as safes which can’t be opened any other way.
throw away. Once that is done rinse off the knife you used and either put it in the sink to be
Since the handle is made of brass and smoothed wood, it's also not very easy to grip. This could be a hindrance in self-defense situations, and it could be a safety issue when using the knife for rough cuts or prying.
After watching the documentary The Long Search: Taoism: A Question of Balance—China, I am totally surprised by the details in the video, which explain every single aspect of people’s daily life in Taiwan as religious, especially Taoist. Since China does not consider itself as a nation of religious beliefs and practices, I do not actually think of what Chinese people do everyday as religious. However, after studying Religions in China for a semester, I finally realize that all the Chinese traditions and beliefs have evolved as a mixture of Confucianism, Taoism, and Buddhism. As a result, it all makes sense to see in the video that Taoism is a dominant religion that has deeply influenced individuals’ life in Taiwan.
The respiration chamber should also be cleaned, but only water will be used to clean this device. The chamber should be rinsed out until all of the mixture is emptied out of the bottle. A paper towel should be used to thoroughly dry the chamber. Next, the area where the experiment was performed should be wiped down to prevent safety hazards. Lastly, after every device has been cleaned out thoroughly and put in the proper place the lab coat and the goggles can be removed and the lab can be
Life cycle - The life cycle of a photo chemical machining tool is estimated to be around 450 cycles. For a large volume production it is often advisable to produce a negative master film, this also a positive film to be quickly produced by a contact method. It is advisable where the design of a component allows, to avoid manufacture of a tool that produces large areas of photo resistant removal. If the work material has areas of exposed metal the machine will have a faster rate of etch than cutting lines, this can cause tolerance problems together with a faster contamination of the etching chemistry.
Pulling the green handle drops the red cam follower onto the propeller shaft cam wheel. Twice during each rotation of the propeller the cam lifts the follower which depresses the blue rod against the spring, connecting the yellow trigger plate to the purple firing button allowing a round to be fired.
To avoid contamination as best as possible, if washing hands according to SOP1 is not possible, wearing gloves and spraying with 70% ethanol is also acceptable for the procedure. Furthermore, not touching the ends of the needle and filter are absolutely essential in avoiding contamination thus applying them to the syringe whilst the ends are still in their sterile packaging will aid the prevention of contamination. When not in use placing the syringe on its plunger creates a smaller surface area for the contaminants to attach to as well. Loosening the lids of the broth tubes before placing in the Biohazard cabinet ensures easier removal when required thus less exposure time of the opened end to the environment allowing contaminants in.
After prepping the area, the doctor will use small handheld instruments to remove the tooth pulp from the opening that they will create.
If your eyebrows are thinner than you like, you may spend a lot of time each morning filling them in with makeup so you feel more comfortable about your appearance. If you'd like thicker brows without having to do all that work, you should look into microblading. Microblading is a type of tattoo or semi-permanent makeup that can give you the appearance of full, lush brows. Here's how it works.
The Master Butcher website (2009) states that butchering requires the right tools or it can become hazardous and also frustrating. Professional b...
If the blade did not hit the exact spot on the neck it would become as though it was an axe. It would hack away until the head came off. After all the chopping, the blade will often become dull. Throughout the revolution, the blade was changed, it became angled. The angling of the blade helps kill faster.
In the early 1960s the need arose for a tool that could cut and injured driver out of a vehicle. The tool had to be strong, versatile, and able to work quickly and safely. George Hurst the father of the “the hurst tool” later to be given the nickname of T”he Jaws of life” was watching a stock car speed way race when he observed a crash which left the driver trapped inside of his vehicle for more than an hour. The standard to extricate a victim from a crash at that time was to use a circular saw which produced dangerous sparks, was slow to cut, and very noisy. Secondly the other option was to try and pry the doors open using a crow bar or a halogen bar which sometimes caused more harm than good and was very labor intensive. So George Hurst came up with the idea of the “Jaws of Life” and spend the next
For example, when I insert indwelling Foley catheter and change the colostomy bag, first I clean the area very-well also make sure that the area is dry and clean if not easily bacteria and fungus will grow, thus patient became infected.
This was my mistake. I jumped off in a rush and was quick to reach my hand back in between the cutting deck of the mower and the actual mower itself. After doing so, I had then came to the realization of the dangers being harnessed of the rapid revolutions of the pulley and belt system. Unfortunately, by the time I could pull my hand away it was too late. I felt a slight pinch, before brought my hand out I did not think it was that bad, but boy was I wrong. After pulling my hand out and seeing what felt like a never ending stream of red, and my finger tip dangling, connected only by a small piece of skin, I was in disbelief and shock. The pain had yet to hit me, but when I could finally mentally understand and comprehend the situation and that I actually just cut my finger tip off, I began to walk up to the house cupping one hand in the