choroid
简明释义
adj. 类绒毛膜的
n. 眼脉络膜
英英释义
The choroid is the vascular layer of the eye, located between the retina and the sclera, which contains blood vessels that supply nutrients to the eye. | 脉络膜是眼睛的血管层，位于视网膜和巩膜之间，含有为眼睛提供营养的血管。 |
单词用法
脉络丛；脉络膜丛 |
同义词
| 脉络膜的 | The choroidal layer is essential for supplying nutrients to the retina. | 脉络膜层对于供应视网膜的营养至关重要。 | |
| 葡萄膜 | Diseases affecting the uvea can lead to serious vision problems. | 影响葡萄膜的疾病可能导致严重的视力问题。 |
反义词
| 巩膜 | 巩膜为眼睛提供结构支持。 | ||
| 视网膜 | The retina is responsible for converting light into neural signals. | 视网膜负责将光转化为神经信号。 |
例句
1.Objective To evaluate the clinical and MRI features of choroid metastatic tumors.
目的探讨脉络膜转移癌的临床与MRI特点。
2.I do not think this is choroid plexus carcinoma, metastatic carcinoma, central neurocytoma or subependymal giant cell astrocytoma.
我认为这不是脉络丛癌，也不是转移癌、中枢神经细胞瘤或者室管膜下巨细胞星形细胞瘤。
3.Objective To assess the value of fetal choroid plexus cysts.
目的探讨胎儿脉络膜囊肿的临床意义。
4.Participants 14 patients (14 eyes) with melanoma of choroid.
研究对象14例(14眼)脉络膜黑色素瘤患者。
5.It is to encroach additionally choroid, enter eye socket through blood-vessel, or by blood, lymphatic move arrives systemic organ.
另外是侵犯脉络膜，经过血管进入眼窝，或者经由血液、淋巴转移到全身的器官。
6.When the iris is inflamed, it is likely that the ciliary body and choroid are involved too.
当虹膜是发炎，很可能睫状体和脉络膜都参与过。
7.Those involving the ciliary body and choroid are thought to originate from preexisting nevi.
睫状体和脉络膜的受累被认为是来自于之前存在的色素痣。
8.Choroid plexus may become calcified with age as well.
同样脉络丛也可能随年龄增长而钙化。
9.The doctor explained that the choroid 脉络膜 plays a crucial role in maintaining eye health.
医生解释说，脉络膜在维持眼睛健康方面起着至关重要的作用。
10.The choroid 脉络膜 is a layer of blood vessels that supplies nutrients to the retina.
脉络膜是供给视网膜营养的血管层。
11.Imaging techniques can help visualize the choroid 脉络膜 for diagnosing ocular conditions.
成像技术可以帮助可视化脉络膜，以诊断眼部疾病。
12.A healthy choroid 脉络膜 is essential for proper retinal function.
健康的脉络膜对视网膜的正常功能至关重要。
13.In some eye diseases, the choroid 脉络膜 can become inflamed, leading to vision problems.
在一些眼病中，脉络膜可能会发炎，导致视力问题。
作文
The human eye is a complex organ that plays a crucial role in our ability to perceive the world around us. Among its many components, the choroid (脉络膜) stands out as a vital structure that supports vision. The choroid is a layer of blood vessels and connective tissue located between the retina and the sclera, the outer protective layer of the eye. Its primary function is to supply oxygen and nutrients to the outer layers of the retina, which are essential for the proper functioning of photoreceptor cells. Without a healthy choroid, the retina would not receive the necessary support to process visual information effectively.In addition to nourishing the retina, the choroid also plays an important role in regulating temperature within the eye. It helps dissipate heat generated by metabolic processes in the retina, ensuring that the eye maintains optimal conditions for visual function. Moreover, the dark pigmentation of the choroid helps absorb excess light, preventing scattering that could interfere with clear vision. This characteristic is particularly important in bright environments where uncontrolled light can lead to visual disturbances.Diseases affecting the choroid can have significant consequences for vision. Conditions such as choroidal neovascularization, which involves the growth of new blood vessels in the choroid, can lead to serious complications like macular degeneration. This condition can cause central vision loss, severely impacting an individual's quality of life. Early detection and treatment of choroid related diseases are crucial to preserving vision and preventing irreversible damage.Furthermore, advancements in medical imaging techniques have allowed for better visualization of the choroid and its associated disorders. Technologies such as optical coherence tomography (OCT) provide detailed images of the choroid and help ophthalmologists diagnose and monitor various eye conditions. These innovations have opened up new avenues for research and treatment, enhancing our understanding of the choroid's role in ocular health.In conclusion, the choroid (脉络膜) is an essential component of the eye that contributes significantly to our ability to see. Its functions in nourishing the retina, regulating temperature, and absorbing excess light are critical for maintaining optimal visual performance. As we continue to explore the complexities of the eye, it is imperative to recognize the importance of the choroid and the impact of its health on overall vision. Through ongoing research and technological advancements, we can improve our knowledge of this remarkable structure and develop more effective treatments for eye diseases that threaten our sight.
