Sympathetic nervous system

Virchow-Robin (VR) spaces or perivascular spaces of the brain refer to spaces that accompany the cerebral vessels as they pass from subarachnoid space into the brain parenchyma. A few evident perivascular spaces can be considered normal at any age but many visible perivascular spaces are not. The relevance of visible perivascular spaces to SVD is shown by their presence in increased numbers in patients with white matter hyper-intensities and with symptomatic lacunar ischemic stroke. The…

Neurogenesis is the process in which new neural stem cells are created. In the past, it was thought that this process ends in childhood. New studies have proven this wrong, and in fact neurogenesis continues to occur throughout adulthood. It is now hypothesized to play to be the main component in neural plasticity, our ability to learn, and memorize. There are many factors that can affect neurogenesis, both genetic and environmental. Cruz and Nixon (2003) sought to see what effects, if any, that…

What is Blepharospasm might you ask? The word is split into two different words when you break it down, the word Blepharo which means ‘Eye Lid” and the word Spasm which means “uncontrolled muscle contraction. So with that being said it is an abnormal blinking or eyelid ticking or twitching resulting from any cause. (BEB) is a rare neurological disorder of muscles around the eyes. They have a lot of spasms that come and go called intermittent. Early stage symptoms of this disease can start with…

MS occurs when the immune system attacks the myelin sheath that cover and protect the nerve fibers. When myelin is damaged the information, or the nerve impulses, from the sensory nerves can no longer reach CNS , which consequently lead to wrong responses in the body. Because MS is unpredictable disease, the progression of MS differ from one patient to another. Therefore, doctors have to follow the patient’s case carefully to recognize whether the Disease progresses to later stages or not. The…

1. Where does most of the adult neurogenesis occur (brain structure)? For human adults, neurogenesis would most naturally occur most in the hippocampus region of the brain (Curlik & Shors, 2013, p. 506). 2. This structure most associated with what types of activities? The hippocampus structure is most associated with how one's mental processes respond and adjust to a physical stimuli through learning and behavior (Curlik & Shors, 2013, p. 506). 3. Although most of the new cells die by…

Spinal muscular atrophy (SMA) is inherited disorder that affects the lower motor neuron in the anterior horn cells of the spinal cord and brain stem resulting in progressive weakness of the skeletal muscles [1]. It is considered as one of the most common autosomal recessive diseases and leading genetic cause of death during childhood [2]. The primary cause of SMA is mutation of the spinal motor neuron 1 (SMA1) while the severity of the disease is determined by the number of identical spinal…

Working Toward a Solution By Shane Barry Many doctors and medical researchers have spent years on their exploration into spinal cord injuries. The encounters in which they have made have been used toward finding a new and innovative solution to these injuries in the hope of helping these patients walk or even move or feel again. Most of the injuries included are quite tragic such as partial or complete paralysis. Varying spinal cord injuries can come from the slightest impact or fall. They can…

Because people operate at different conscious levels according to their task or thoughts, many different results can occur from the experiment. A large and truly random group of test subjects would create the best results for this test. Tasks or thought triggers chosen to specifically target one area of the brain could be performed at different states of consciousness such as: different levels of awakeness, during the use of a mind-altering drug, or at normal conditions. Recording observations…

best classified as nematodes that take the form of long cylindrical bodies with tapering ends that survive by feeding on bacterium and are free-living in soil (Edgley, 2015). C. elegans possesses a genome that presents a simplified prototypical nervous system that is particularly easy to observe at a molecular, cellular, and organismal level. This makes them an ideal model organism because they share the same characteristics necessary in the human body (Schafer, 2005). Chemotaxis refers to…

Avascular necrosis is when your bone tissue collapses and breaks down and eventually dies due to the lack of blood supply that it gets. The Age group that the disease mostly common in is 41-60. How can you tell you have this ? We will analyze a lot of the key factors in the disease. What kind of symptoms you have during. Do people who have diabetes or cholesterol are more prone to this disease? A Lot of questions will be answered in this brief presentation. Age wise this disease is focused on…