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918晚 不显示颜色。。(班长,我真的有认真标注错误点的。。)
Anatomy The brain
I’ve brought in a picture of the human brain today which we going to look at and discuss the detail. The parts of brain that we are going to talk about are clearly labelld. The brain is like our command center for all our daily functions and allows us to cope with our environment. How we communicate with words, actions, thoughts and feelings are all centered in the brain.
Some researchers believe that the brain is so complex in mysterious that we will never be able to fully understand it. Some have even referred to it as a little black box like those found on a plane that contains all the critical and highly confidential information of the flight. That being said, there are parts of the brain we do know about, like the parts listed on the diagram. And we also know their functions that each bring to make our body work.
It's the easiest to think of the brain as three connected parts. The cerebrum, brainstem and cerebellum. Let's start off with the brainstem which is found at the bottom of the brain and joins the cerebrum to the spinal cord. The brainstem has an important role because it controls lots of critical functions including respiration, regulation of the heart rhythms, basic aspects of sound localization which allows us to identify the origin of a detected sound and reflexes. As you can see on the diagram, the brain stem includes the mid-brain, the pons and the medulla. These allow functions such as the movement of eyes and mouth, passing on sensory messages, like hot, pain, loud and other functions such as hunger, consciousness, body temperature, sneezing, coughing, vomiting and swallowing.
Next we will look at the second largest part of the brain, the cerebellum. It is located at the lower back of the head and it attached to the brain stem. It is made up of two hemispheres and its functions are to control complex voluntary motor functions, such as walking, balance and posture.
The third and largest part of our brain is the cerebrum. Its associations are conscious thought, movement and sensations, such as touch, vision, hearing, judgment, reasoning, problem solving and emotions. It is made up of two halves with each half controlling the opposite side of the body. The corpus callosum connects the two halves and delivers messages between them. There are four lobes that make up the cerebrum, frontal, temporal, parietal and occipital. The Frontal is located in the front of the head and is involved in personality, characteristics and movement. The P is the middle part of the brain and helps us to identify objects and understand the spatial relationships, like where your body is compared to the objects around you. It also helps make meaning of pain and touch in the body. The O allows you to see and is locate in the back of the brain. Finally, the T assists with the memory, speech, and the sense of smell and is found in the sides of the brain.
The average weight of the adult human brain is anywhere between 1 and 1.5 kilograms. Some people say that we only use 10 percent of our brain but this is just myth. In fact we use our entire brain, that being said, we claim that most people only use a very small fraction of the cognitive potential of their brains. Different cultures have used several methods to improve their cognitive potential, such as reading, education, puzzle solving and critical thinking.
I hope this brief introduction to the brain helps you understand the brain and its different functions.
Cognitive 认识的,认知的
Cord 束缚,绳索
Localization 定位,局限
Mysterious 神秘的,难解的
Myth 神话,虚构的人
Posture 姿势
Sneezing 喷嚏
Voluntary 自愿的,自发的
Brainstem 脑干
Cerebellum 小脑
Cerebrum 大脑
corpus callosum 胼胝体
frontal 前叶
medulla 髓质,脑髓
occipital 后叶
parietal 测叶
pons 脑桥
spinal 脊髓的
temporal 颞叶
这篇是自己听写的,没有参加集体活动。貌似这篇比较简单。
有大量专业生词。前段时间笔记训练没白费,专业词汇基本不影响理解。 |
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