育儿心得写给渐冻症的一封信400字
What Is Lou Gehrig's Dia?Lou Gehrig's dia is a disorder that's also called amyotrophic lateral sclerosis(say:ah-my-uh-TRO-fik LA-tuh-rul skluh-RO-sis),or ALS.The official name comes from the Greek words:
a\"for without
黄童
myo\"for muscle
trophic\"for nourishment
袁晓婕lateral\"for side(of the spinal cord)
sclerosis\"for hardening or scarring
So,amyotrophic means that the muscles have lost their nourishment.When this happens,they become smaller and weaker.Lateral means that the dia affects the sides of the spinal cord,where the nerves that nourish the muscles are located;and sclerosis mea
ns that the diad part of the spinal cord develops hardened or scarred tissue in place of healthy nerves.
181年ALS is often called Lou Gehrig's dia after Lou Gehrig,a hall-of-fame baball player for the New York Yankees who was diagnod with ALS in the 1930s.People in England and Australia call ALS motor neurone dia(MND).The French refer to it as maladie de Charcot,after the French doctor Jean-Martin Charcot,who first wrote about ALS in 1869.
Lou Gehrig's dia damages motor neurons in the brain and spinal cord.Motor neurons are nerve cells that control muscle movement.Upper motor neurons nd messages from the brain to the spinal cord,and lower motor neurons nd messages from the spinal cord to the muscles.Motor neurons are an important part of the body's neuromuscular system.
病毒的危害
The neuromuscular system enables our bodies to move and is made up of the brain,many nerves,and muscles.Things that we do every day—like breathing,walking,running,lifting stuff,and even reaching for a glass of water—are all controlled by the neuromuscular system.
备孕吃什么叶酸
Here's how the neuromuscular system works:If you want to make a fist,your brain first nds signals through upper motor neurons to the area in your spinal cord that controls your hand muscles.Then lower motor neurons in your spinal cord signal the muscles in your hand to move and make a fist.
Over time,Lou Gehrig's dia caus the motor neurons in the brain and spinal cord to shrink and disappear,so that the muscles no longer receive signals to move.As a result,the muscles become smaller and weaker.Gradually the body becomes paralyzed,which means that the muscles no longer work.
However,someone with ALS,even at an advanced stage,can still e,hear,smell,and feel touch.The nerves that carry feelings of hot,cold,pain,pressure,or even being tickled,are not affected by Lou Gehrig's dia.In some people with ALS,the parts of the brain that allow us to think,remember,and learn also are affected by the dia.
Rare Among Kids
上巳节是鬼节吗
案例报告Although this dia can strike anyone,it is extremely rare in kids.According to the ALS Association,most people who develop Lou Gehrig's dia are adults between 40 and 70.Only 2 out of every 100,000 people will get the dia each year.Becau it is not contagious,you can't catch ALS from someone who has the dia.
