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第二章 中枢神经系统 Chapter 2 Central Nervous System anterior corticospinal tract 皮质脊髓前束 anterior funiculus 前索 anterior gray commissure 灰质前连合 anterior hom 前角 anterior median fissure 前正中裂 anterior spinocerebellar tract 脊髓小脑前束
Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? 有件事情我们总觉得理所当然:室温下把一些冰块放入水中,
How Does Ice Cool Drinks? Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? Heat is a measure of molecular activity: the faster a
Water Blankets Forming Planets A study in the journal Science finds much more molecular water in regions where planets are forming around young stars. The mechanism to keep the water from being destroyed by UV radiation appears to involve some of the
Steroids Affect Brain Development in Premature Babies Premature babies routinely get powerful steroids both before and after they are born. The drugs help the babies' tiny lungs mature and boost blood pressure, among other benefits. Previous research
Why Can't You Tickle YourselfHave you ever thought about why people are ticklish? According to scientists, ticklishness is a defense mechanism humans developed against bugs, spiders, and other critters that may be touching our skin. Feeling ticklish