Spine Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Spine and links to relevant pages within the course.
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| This intestinal parasite, found in stool, measures 170 micro meters by 63 micro meters. | View Page |
| This suspicious form, found in urine, measures 120 micro meters by 50 micro meters. | View Page |
| Scenario #3Jim spends most of his workday sitting on a stool at the technical workbench. The image on this page illustrates how he routinely sits. Lately, he has been experiencing lower back and leg discomfort that continues to bother him when he leaves work. He has been having trouble sleeping because of the pain in his legs. Eventually, the pain progresses to the point where he cannot work an entire day. What may have caused the problem and what could have been done to prevent the MSD from developing? Consider what could be the problem based on your observation of Jim's normal sitting position. Then click on the blue text below to see the ergonomic evaluation and possible solutions. | View Page |
| Ergonomic Guidelines for Computer Users A. Computer monitors should be approximately 18" - 24" away from the eyes. The top of the monitor is best set at eye level so that the eyes gravitate toward the center of the screen. B. Try to avoid glare from the light. C. Computer monitors should be set directly in front of the user D. Keep forearms 90° from your spine and keep elbows in close to the body. E. If seated, thighs should be parallel to the floor and about a 90° angle with the calves. F. Use an adjustable chair, preferably with padded arms. Adjust the chair or work surface (if possible) to the correct position. Avoid leaning forward or to the side. Do not lean on work surfaces. Do not lean on elbows or armrests. Keep neck and shoulders in a relaxed position.G. Place keyboard in a comfortable position (preferably on an adjustable keyboard tray) and use a wrist/palm rest. H. Place feet flat on the floor or on a footrest and do not crowd the legs or body into a cramped or cluttered work space. Use a document holder to keep working documents at eye level with the screen. To avoid eyestrain, follow the 20/20/20 rule. Every 20 minutes, take a 20 second break to focus on a spot 20 feet away. | View Page |
| This intestinal parasite, found in stool, measures 170 µm by 63 µm. | View Page |
| This suspicious form, found in urine, measures 120 µm by 50 µm. | View Page |
| This stool parasite measures 135 µm by 50 µm and is the causative agent of: | View Page |
| Which of the following parasites is the causative agent of swamp fever? | View Page |
| This suspicious form, recovered in stool, measures 165 µm by 65 µm. It is responsible for causing: | View Page |
| Stool is the specimen of choice for the recovery of which of the following parasites? | View Page |
| Match each parasite with the key characteristic that aids in its identification: (Each answer may only be used once.) | View Page |
| The only nematode egg that is characteristically flattened on one side is: | View Page |
| Match each parasite listed here with its corresponding key identifying characteristic found in the egg morphologic form: | View Page |
| A 40 year old male just returned from a six-month tour of the Far East. He went to his doctor upon his return complaining of weakness, diarrhea, fever and cough. Upon questioning the patient it was learned that he spent many an evening swimming in the various local fresh water ponds. The doctor, suspicious of a parasitic infection, ordered a stool for examination. Two suspicious forms were seen: form 1 is roundish and measures 77 µm by 62 µm. Form 2 is long and ladder-like and lays on the edge of form 1. What are these two structures? | View Page |
| I am found in stool and measure 75 µm by 55 µm. | View Page |
| This suspicious form, recovered in stool, measures 120 µm by 63 µm. Name that parasite! | View Page |
| Schistosoma Haematobium Ova The third parasite which may be seen is the Schistosoma haematobium ovum. This parasite is considered an important factor in the etiology of carcinoma of the bladder. The ova are elongated and are 60 X 160 microns. They are a yellowish color, slightly transparent, and possess a delicate terminal spine. | View Page |
| Match the following: | View Page |