By Sally Robertson, BSc A glioma is a type of tumor originating in the brain or spinal cord that arises from the glial cells. These cells form a tissue called “glia” that surrounds nerve cells to keep them in place and support their function. Glioma is a common type of brain tumor and accounts for around one third of cases. […]
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The process of embryogenesis begins when an egg or ovum is fertilized by a sperm cell to form a zygote. This zygote then undergoes mitotic division, a process that does not result in any significant growth but creates a multicellular cluster called a blastula. This process is referred to as cleavage. Deuterostomes and protostomes The blastula develops in one of […]
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Tennis elbow, also sometimes referred to as lateral epicondylitis, is a condition involving pain in the area of the elbow that is usually associated with overuse of the area. In particular, the muscles and tendons in the forearm become damaged due to repeated movements, which causes the discomfort. Although anyone can suffer from Tennis Elbow, the name of the condition […]
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Motor neurone disease is a rare progressive disorder that affects special nerves in the brain and spinal cord called motorneurons. These nerves control muscle movement and their degeneration leads to severe weakness, muscle wastage and eventually complete debilitation. The motorneurons control important muscle movements such as walking, speaking, swallowing, breathing and gripping. As the disease progresses, these actions become increasingly […]
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Depression in children is a growing phenomenon. The very existence of depressive mood disorders in children was in doubt a few years ago, whereas currently the incidence of depression in childhood is rising with each new generation, and in parallel, the rate of childhood suicide is also rising. Image Copyright: prudkov / Shutterstock, Inc For this reason, parents need to […]
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The term gingivitis refers to inflammation and infection of the gums. It is also termed non-destructive periodontal disease. In cases of periodontitis, the gums, the tissues connecting the tooth to the tooth socket (called the periodontal ligament) and the jaw bone containing the sockets of the teeth (called the alveolar bone) are affected. Gingivitis is an earlier and less severe […]
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Melatonin is purported to play a myriad of roles in humans. The most important of these is maintaining the sleep-wake cycle or the circadian rhythm. The roles of melatonin in humans can be summarized as: Melatonin in circadian rhythm and sleep Melatonin is secreted by the pineal gland within the brain. Although melatonin produces a signal that regulates the sleep-wake […]
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Hematidrosis represents a strange and extremely rare medical condition where the affected individual literally sweats bloody fluid through the sweat pores. The skin is usually anatomically and histologically normal, though a few studies have reported some abnormalities such as blood-filled spaces in the skin at the time of the bloody sweat. This has not been confirmed in most other research, […]
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Lupus is a chronic inflammatory autoimmune disorder. Some symptoms of lupus can be transient such as joint and muscle pain, fatigue, a rash caused or made worse by sunlight, low-grade fevers, hair loss, pleurisy, loss of appetite, sores in the nose or mouth, or painful sensitivity of the fingers in cold environments. Scio21 | Shutterstock Lupus can often be misdiagnosed […]
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Rapid eye movement (REM) sleep is marked by movement of the eyes and low muscle tone in the body, in addition to more rapid brain waves, similar to that of an awake individual. During this stage of sleep, an individual has dreams and the brain produces waves similar to that of a person who is awake, explaining why it is […]
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