(记忆类)解剖中神经系统的巧记歌诀（(memory) how could the nervous system anatomy gejue）.docVIP

(记忆类)解剖中神经系统的巧记歌诀（(memory) how could the nervous system anatomy gejue） (memory) how could the nervous system anatomy gejue (I) overview 1., the distinction between the nervous system The nerve is divided into two parts, around the central two system; Spinal cord and brain central system, spinal nerve system. 2. the way the nervous system works Internal and external stimuli, the reaction is called reflex; Reflect the basic reflex arc, the five link to remember. Accept information receptors and sense nerve messages; The motor afferent command in the afferent reflex center; The effector works, and the muscles contract for exercise. 3. common terms of the nervous system (1) grey matter; The central nervous neurons are concentrated in the soma and dendrites. Gray color called gray matter, size, brain surface for the cortex. (2) nucleus of nerve; If in the central nervous system, the same function, cell body; The formation of gray matter masses, especially the nucleus of the nerve. (3) ganglion If it is outside the center, the body is concentrated; Shape slightly enlarged, called ganglia. (4) fiber bundle Nerve fiber aggregation in central white matter, If the function is the same, it is called the fiber bundle. (two) spinal cord 1. shape Located in the spinal canal flat cylinder, runs through the length of six channels; The foramen magnum, even the medulla oblongata, falls long below the first lumbar border. Lumbosacral enlargement, neck enlargement, thirty-one quarters to remember; Neck eight, waist five, chest twelve, sacral five tail section of a single. 2. internal structure In the gray matter around the white matter, the gray matter section is inverted H; The cell dendrites are concentrated and the anterior column cells are moving. Posterior column interneurons. One side of the chest, three side column, Sympathetic lower central part. Sacral 234 without column, The cell between the anterior and posterior horns is the parasympathetic center. White matter from three,