In teaching labs, histology slides can help students learn about the microstructures of biological tissues.ĭoctors take tissue samples, or biopsies, from people who may have cancer or other illnesses and send the samples to a lab, where a histologist can analyze them. Histology is vital for the understanding and advancement of medicine, veterinary medicine, biology, and other aspects of life science. This makes it easier to identify the specific tissues under investigation. The aim of staining tissues and cells is to add or enhance color. Sectioning involves cutting tissue into very thin slices for close examination. They may then examine them under an electron or light microscope. Through microscopic anatomy, people can learn about the structure of cells and how they relate to each other.įor example, if a person has cancer, examining the tissue under the microscope will reveal how the cancerous cells are acting and how they affect healthy tissue.Ī researcher may apply histological techniques such as sectioning and staining to tissues and cells. These subjects are too small to see without a microscope. Microscopic anatomy, also known as histology, is the study of cells and tissues of animals, humans, and plants. These systems all work together and depend on each other to function. the integumentary system, which includes the skin, hair, and nails, among other areas.the cardiovascular system, including the heart.the endocrine system, which regulates hormone production.the nervous system, including the central and autonomic systems. There are 11 organ systems in the human body: Students of gross anatomy learn about the major systems of the body. Medical and dental students also perform dissection as part of their practical work during their studies. MRI scans, CT scans, PET scans, X-rays, ultrasounds, and other types of imaging can also show what is happening inside a living body. This reveals how the circulatory system is working and whether there are any blockages. For example, to study the blood vessels of living animals or humans, a scientist or doctor may inject an opaque dye, then use imaging technology, such as angiography, to see the vessels that contain the dye. There are also less invasive methods of investigation. By passing it through the mouth or rectum, for example, they can examine the inside of the gastrointestinal tract. It involves a scientist or doctor inserting a long, thin tube with a camera at the end into different parts of the body. In dissection, a scientist cuts open an organism - a plant or the body of a human or another animal - and examines what they discover inside.Įndoscopy is a tool for diagnosing illness, but it can also play a role in research. The aim is to collect data about the larger structures of organs and organ systems. The study of gross anatomy may involve dissection or noninvasive methods. In other words, a person does not need a microscope to see these features. In medicine, gross, macro, or topographical anatomy refers to the study of the biological structures that the eye can see. Share on Pinterest Image credit: BraunS/istock.
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