Medical MRI Technologists are people who are specialists in using and operating MRI technology units. MRI technology units use large and strong current flows. They are used in making a very accurate image of soft body tissues or organs without having risk factors of patients by abolishing harmful X-rays and this is why this technology is very reliable and trustworthy by a lot of doctors nowadays. Job opportunities for MRI Technologists or technician are very good since there is a very high demand for performing MRI scans. MRI technologist or technicians use Magnetic resonance imaging (MRI) scanners to obtain images requested by a physician or a doctor to help in patient diagnoses.
1. Light can transmit through some matter When encountering matter, light is often absorbed and/or reflected. However, it can also pass through some kinds of matter, depending on an object’s nature. 2. Light travels in straight lines When an object is held between a point source of light and a screen, a shadow is formed.
Calonna Taylor Professor Osborne BSC2010C 9 February 2014 Beyond The Cells Purpose: The purpose of this lab report is to become familiar with the use of a compound microscope and the Gram Stain. Hypothesis: If you do not know how to use a Microscope or how to Gram Stain, then your results of your lab will come out inconclusive or just wrong. Part A: Cell Structures Materials & Methods: Materials: * Colored Pencils * Paper * Access to a scanner Methods: 1. View video “Using a Microscope.” 2. Look at the slides and identify the cell structure within.
These measurements include but are not limited to: mass of a patient in kilograms, blood pressure in mmHg, body temperature in degrees Celcius, respiration rate, and pulse-oximetry. We learned about the properties of density, boiling point, specific gravity, and solubility. Densities will be useful because they allow us to find many other properties about a substance such as the specific gravity. In nursing, specific gravity is used during Urine Specific Gravity tests. These tests allow us to tell us how well the kidneys are working.
The quadrants and regions divide the lower torso into four sections and nine region sections to identify the areas where internal organs are placed. This approach is a good reference to be used when conducting a physical exam of internal organs. Radiology tests such as MRI, CT scan, PET scan and X-Ray mainly use this method. The anatomy and physiology is the study of the structures with in the body and how they function in the body. This approach is good to be used when studying the structure and how cell work or the nervous system.
1) Genetic engineering or genetic modification is the process of altering an organism’s genetic material for a beneficial purpose. Genetic modification is used to improve the products we obtain from plants and animals making them more nutritious, less-harmful manufacturing processes, and production in large quantities making them less expensive. 2) Gene Therapy- when an absent or faulty gene is replaced by a normal gene in order to treat a disorder or medical disease Plasmid- small circular DNA molecules in the cytoplasm of bacteria, these molecules cut DNA into a recognizable sequences DNA Polymerase Chain (PCR)- technique used to make copies of a certain gene. Biologists particularly use this with tiny genes that are rarely available. Hybridization- crossing different traits to bring the best of organisms into one.
The coil is the part of the machine that will actually make it work, by giving of a radio frequency. The scanner uses hydrogen atoms to tell the difference between different tissues. MRI scanners will use ‘spin’ which is a property in the machine which can tell the differences between tissues, such as fat, tendons, and muscle. Once the MRI scanner is turned on and the patient is in ready to be scanned the nuclei of the hydrogen atoms in the machine can spin in one of two different directions. The hydrogen atom nuclei can change the direction of spin to the opposite direction.
These proteins open and close the membrane. | | 11 CORRECT | | What did Robert Hooke use to study this organism? | | | A) | light microscope | | | B) | electron microscope | | | C) | cork chamber | | | D) | DNA analysis | | | | | | Feedback: Robert Hooke used a primitive light microscope to observe organisms such as this flea, as well as cork, which led him to the notion of cells. | | 12 CORRECT | | What does this depict? | | | A) | cytoskeleton | | | B) | fluid mosaic model | | | C) | impermeable membrane | | | D) | genetic material | | | | | | Feedback: Phospholipids in the plasma membrane create a fluid environment in which other molecules can float, allowing selective permeability.
The following are considered biological evidence; hair, saliva, blood, semen and skin tissue. These items are specially preserved in order for the laboratory to work with them and get the information needed. With that we will need to talk about how these specimens are preserved and collected. We must remember that criminal justice system depends on presenting evidence to judges and jurors to help them reach a conclusion about the guilt or innocence of the defendant. Stakeholders of the law; law enforcement officers, lawyers, forensic analysts, and fact finders, should be certain that the biological evidence has been properly preserved, processed, stored, and tracked to avoid contamination or degradation.
Marine biologists usually pick a specific aspect to focus on because it is such a broad field of science. What biologists discover increases our understanding in life, and the