Neurotransmitter

glands during stress and this could be the reason why stressful events can trigger depression, this is supported by the effectiveness of a drug called dexamethasone that temporarily slows down the secretion of cortisol. Furthermore serotonin is a neurotransmitter that is often found at a lower level in the brain of depressives. It is often the case that raised levels of cortisol lead to lowered levels of serotonin so the depression may be a cause of an interaction between the two. Evidence for a…

scientific community regarding the roots of depression. For decades, some psychologists and other professionals have supported the serotonin hypothesis of depression, which proposes that a shortage -or in some instances, an overload- of the chemical neurotransmitter serotonin causes depressive disorder. However, with increased research, along with refined imaging techniques in mood disorders, experts are beginning to reject the chemical imbalance hypothesis. This is because the greater steps…

muscles is another sign of the disorder. An individual suffering from Parkinson’s disease may have limited range of motion because their muscles are so stiff, and it can cause them pain (Mayo Clinic). The cause of Parkinson’s disease is from a neurotransmitter in the brain called…

Cannabis, or cannabis sativa, originated in Central Asia and has been used for its psychoactive properties for many years (Iversen, 2008, p. 6). It affects the brain of adolescents and adults differently through the binding of CB1 receptors due to distinctions in neurocognitive development. There are certain changes in gray and white matter densities, brain volume, as well as endocannabinoid concentrations. This creates aberrations in cognition and memory performance. Cannabinoid’s structures…

simultaneously. The axons that make connections to the neurons of the hippocampus are exposed to a high-frequency stimulus, then the amplitude of the excitatory potential measured in these neurons is increased for a long period of time. Glutamate, the neurotransmitter, is released into these synapses that helps to binds the different subtypes of receptors on the postsynaptic neuron. Such receptors are AMPA and NMDA. If this receptor is blocked with a drug, or if the gene involved in its…

production of antibody begins with the genes of the antibody being transcribed into mRNA this leaves the nucleus by joining on to the ribosome. Lots of cells secrete proteins into their surrounding extracellular fluid. Some cells like hormones and neurotransmitters secrete regulatory molecules. Whereas others release digestive enzymes, antibodies, or mucus. Fibroblasts secrete collagen are the whole body and other structural proteins to deliver the body with strength and hold the body together.…

Both social factors as well as biological factors play a significant role in the aspects of mental disorders. Some major biological factors that influence mental disorders are a chemical imbalance of neurotransmitters, infections, brain injuries or defects, poor nutrition, and heredity. Some major social factors that influence mental disorders are to be a women. be between 35 and 54 years old, be divorced, live alone, be a single parent, rent and or not have a college degree. Various…

Over the course of time from 2001 to 2011 the amount of people diagnosed with ADHD rose 24% (“Neurologists”). With the certain rise in people being diagnosed, the number of bottles of the medication being sold has shot up tremendously, but is that a good or bad thing? Granted medication for ADHD does help with focusing in school or sports, there are some effects that can be life threatening. Many Hospitals and labs have been researching about ADHD medication, in particular the Boston Children’s…

have a nucleus and all other organs that are needed for a normal cellular life. Neurons are characterized by specialization in intracellular communication. Neurons in the matured CNS involves a secretion of special chemical molecules called neurotransmitters. Neuroglia provide a variety of functions for brain tissue and support the metabolic and signaling functions of the neurons. Certain types of neuroglia, myelin, serve as an insulation around axons. 4. Neuroglia function depends on the…

The cerebellum, on the other hand, is involved in controlling movements through coordination, precision, and accurate timing of movement. Unlike the basal ganglia, it does not directly initiate or suppress movement but works by influencing movements by modifying activity patterns of the upper motor neurons. The cerebellum receives its input from the spinal cord in form of mossy fibers that project from the pons and spinocerebellar pathways. Mossy fibers contribute the information necessary for…