Nervous system

Introduction: Planarians are free-living aquatic flatworms that posses remarkable regeneration abilities in addition to its distinct negative phototaxis behavior. A wealth of research studies has thoroughly examined its photophobic behavior under different wave frequencies and light conditions. Planarian are highly sensitive to white light and wavelengths of high frequencies, blue-green range ( Paskin TR, 2014). Two basic pigment-cup eyes situated in the head region govern its photophobic…

of migration initially tangential to the orientation of the cortical surface, before assuming a radial trajectory in intermediate zone towards the cortical plate (tangential pathway: dark green arrows); a pattern reported in more diverse mammalian systems. A pattern of GABAergic neuronal migration originating in SVZ/VZ and displaying a radial trajectory to cortical plate has been reported more recently in humans and non-human primates (light green arrows). GABAergic neurons originating from…

Although there is no cure for muscular sclerosis there just a few treatments that can help control the symptoms. A variety of medications are prescribed in several forms such as orally, intravenous or by injection. Treatment for attacks includes corticosteroids to reduce nerve inflammation. Medications for depression, sexual dysfunction and bladder and bowel control may also be prescribed. Medications administered by injection subcutaneously or intramuscularly are Beta interferons for…

One of the most sought out secrets is the one of how the mind works in terms of the different networks of neurons. In recent years neuroscientist have accomplished a lot with regards to what parts of the brain are active at certain times such as when you smile, when you see a picture, or when you have an enjoyable memory, but one thing that neuroscientist have not been able to discover is how one age mentally. Many theories have been proposed and seen through different studies. The most…

Myasthenia gravis is a neuromuscular disorder or autoimmune disorder. An autoimmune disorder occurs when the immune system mistakenly attacks its own healthy tissue. Neuromuscular disorders involve the muscles and the nerves that control them. With myasthenia gravis, the body produces antibodies that block the muscle cells from receiving messages (neurotransmitters) from the nerve, which causes weakness of the voluntary muscles. Therefore, fewer receptors are available for stimulation, resulting…

Behavioral and Neural Events in the Olfactory System Olfaction is dependent on a large network of multiple primary and secondary processing centers connected in parallel and serial manners. Some of these centers are linked with non-olfactory regions. Olfactory receptor neurons project into the olfactory bulb which projects to the olfactory cortex. The olfactory cortex is a three layered cortex with several distinct sub-regions, the largest being the pyriform cortex. The other main components of…

informational paragraphs. On the first column on the right there is three bullet points with all green circles with words describing what it is saying in the paragraph beside it. One of those bulletin points out the “4 hour period” the medicine lasts in your system. The second bullet point talks about a clinical study that went on. Then, states the percentage of how people felt on the meds vs. a non medical patch. Last but not least it states call “migraine support solution” for assistance for…

Antiemetics Overview: Antiemetics are used for nausea and to prevent vomiting and also used for motion sickness. These drugs can be bought over the counter. (OTC) Action: Dimenhydrenate or Dramamine is an antihistamine. It should be taken one hour before travelling, and will prevent motion sickness. The antihistamine is available in children’s liquid formula and in a Less Drowsy Formula that may have fewer sedative side effects. Meclizine hydrochloride (Bonine) treats vomiting and dizziness…

Glial Cells are supporting cells in the nervous system (central nervous system [CNS] and peripheral nervous system [PNS]) which aid in the efficiency of neural operations in the nervous system, (Carlson, 2013). Carlson (2013, p.36) indicates the general functions of the glial cells as: keeping neurons in place; supplying neurons with nutrients and the chemicals needed to communicate with each other; protecting neurons from each other to promote coherent messages; and “destroying and removing the…

(2015) nervous system divided into two division which is the Central Nervous System(CNS) and Peripheral Nervous System(PNS). CNS consist of the brain and spinal cord while PNS include all the neural tissue outside the CNS. Neuron are the nerve cells which receive the stimulus from each part of the body and send it to the CNS. A neuron consist of body cell, dendrites, axon,myelin sheath and telodendrites. Normal neuron requires all the structure works together forming a good nervous system. The…