Charged ions collect a lot of water molecules around them. The charged ions are not well through th

Biology Package 5: Nerves may contact between cells. Through the cells may have spread to sodium ions and potassium ions through. Another way to communicate: there are certain molecules which are proteins. Proteins come together and there is the charge distributions sens restaurant of the protein

to change its structure. Nerve cells: they are specialized. It is to promote and preventing the cells, so that all the signals, but the signal is transmitted is determined as a vote. How many / how many people are against it? The nervous system to coordinate and manage the various bodies sens restaurant in terms of the conditions and requirements surrounding places. CNS will rinformationer example, by putting pressure down ell Up or putting bodies in the air circulation. This re-allocation is a reasonable supply of freshwater. The nervous system is divided into: CNS → → consists of the central nervous system of the brain and spinal cord PNS → → peripheral nervous system consists sens restaurant of nerve fibers between the CNS and the rest of the body. Brain: Studies show that the right hemisphere is specialized unable to perceive emotions, spatial issues comprehensively. The left hemisphere specializes in language, the concept sens restaurant of time and rationality. United brain: coordinating motor function, is the post-processing of the cerebellum, where it is cleaned. sens restaurant Small brain: sens restaurant Finkoordinerer our motor skills, good movement. Muscles, sens restaurant balance, etc. of the cerebral cortex: the outermost is also called the cerebral cortex. The limbic system: However, to feel comfort because they have the reward centers, which is part of the limbic system. Dependence, mood and relationships in the body is constant. In PNS distinguish nerves and afferent nerves are fraførende. Afferents: Chief information of the sense organs the central nervous system. They are part of the PNS called the sensory sens restaurant nervous system. Fraførende: Chief Information CNS to muscles

and glands. They can be classified in the motor nerves sens restaurant and the autonomic nervous system. Motor and autonomic sens restaurant nerves: These nerves are connected to the skeletal muscles. Autonomic sens restaurant nerve fibers are connected to a smooth muscle, cardiac sens restaurant muscle, as well as the body's glands. Nerves business under the control of the will rather than the autonomic nerves autonomic nervous system: All the body's organs are two autonomic nerves, crowd, which stimulates the activity and set that blocks the action. It is divided into the sympathetic sens restaurant autonomic nervous system (a stimulant), the nervous system and the parasympathetic (inhibitory) nervous system. The autonomic nervous system is named after the autopilot functions that we are rarely aware of and which we can not control our consciousness. The hypothalamus is the center of the overall management of the autonomic nervous system. Inspection through the area, including the temperature. There are a number of neural connections of hypothalamic autonomic nervous system. The autonomic nervous system regulates our internal organs and glands via sympathetic and parasympatikus. Autonomic reflexes work quickly and accurately to ensure continuous internal environment of living - homeostasis, such as fluid balance and temperature. Sympathetic nervous system: is a battle, and escape the stress reactions of the parasympathetic nervous system: taking over functions at rest and digestion. Both are active simultaneously. Nerve cells: it is such a normal cell, the mitochondria, nucleus, ribosomes in the endoplasmic reticulum. Axon is hjerneforgreningen, which can grow up to a meter. Axon, starting with the soma (cell body and the end of the branches sens restaurant (telodendron). Branches ends synapses, which can have multiple synapses .. two different cells: neurons and supporting cells / glial cells. There are several groups sens restaurant of glial cells for example, the myelin sheaths of microglia and astrocytes. sens restaurant Nerve cells in the recipient and the sender information and controls a variety of processes. sens restaurant supporting sens restaurant cells regulate the concentration of nutrients and waste products in the nervous system. supporting cells also prevents infections. Nerve cells are built by the same parts as other cells. However, they have long plumes originating from the cell body, cute. → There are two types emitters: dendrites and axons. Hvilemembranpotantiale:
Charged ions collect a lot of water molecules around them. The charged ions are not well through the nerve cells, sens restaurant only a little. One is a pump / enzyme (sodium / potassium ATPase), and pumping out 3NA + + in 2KA. The pumping over Na + Ka +. 20% of the energy goes to maintain the pumps. All items nerve cell to a sodium / potassium pump. Potentioale is the voltage sens restaurant difference. Intracellular negative sens restaurant and positive action. When the pump has done its work, and the cell does not do anything, this is called the resting membrane potential. The channels are opened without it costing the ATP makes the oozing of Na +, because the cell is negative on the inside, since there are three out of the Na +, and only 2KA