retinula

简明释义

英[reˈtɪnjʊlə]美[rɪˈtɪnjʊlər]

n. [无脊椎] 小网膜（指昆虫复眼中小眼的色素细胞）

复 数 r e t i n u l a e 或 r e t i n u l a s

英英释义

单词用法

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例句

1.The arrangement pattern of the retinula in the right, left compound eye and dorsal, ventral regions of the compound eye are the mirror image inversion.

家蝇的左复眼与右复限、复限的背区与腹区中，小网膜细胞呈镜像对称排列。

2.We found that there were various structural changes in cones, pigment cells, retinula cells, rhabdomeres at the two different times.

发现复眼中的晶锥、色素细胞、网膜细胞内含物及感杆，在这两个时刻的形态和结构有显著不同。

3.The arrangement pattern of the retinula in the right, left compound eye and dorsal, ventral regions of the compound eye are the mirror image inversion.

家蝇的左复眼与右复限、复限的背区与腹区中，小网膜细胞呈镜像对称排列。

4.In many arthropods, the retinula 视网膜 cells are responsible for processing visual information.

在许多节肢动物中，retinula细胞负责处理视觉信息。

5.The retinula 视网膜 plays a crucial role in the phototransduction pathway in insects.

retinula在昆虫的光转导途径中起着至关重要的作用。

6.Researchers are studying how the retinula 视网膜 functions in various species to understand evolutionary adaptations.

研究人员正在研究不同物种中retinula的功能，以理解进化适应。

7.The structure of the insect's eye includes a specialized part called the retinula, which is essential for light detection.

昆虫眼睛的结构包括一个叫做retinula的特殊部分，它对光线探测至关重要。

8.Damage to the retinula 视网膜 can lead to significant vision impairment in certain species.

对retinula的损伤可能导致某些物种的显著视觉障碍。

作文

The fascinating world of biology is filled with intricate structures and functions that allow organisms to thrive in their environments. One such structure is the retinula, which plays a crucial role in the visual systems of many invertebrates. The retinula is a group of light-sensitive cells found in the compound eyes of insects, arachnids, and some other arthropods. These cells are essential for detecting light and forming images, enabling these creatures to navigate their surroundings effectively.Understanding the function of the retinula requires a closer look at how compound eyes operate. Unlike the single lens eyes of vertebrates, compound eyes consist of thousands of tiny lenses called ommatidia. Each ommatidium houses its own retinula, which contains photoreceptor cells sensitive to different wavelengths of light. This unique arrangement allows insects to perceive a wide field of vision and detect rapid movements, making them adept at avoiding predators and locating food sources.The retinula is composed of several types of cells, including rhabdomeres, which contain photopigments that absorb light. When light hits these pigments, it triggers a biochemical reaction that generates electrical signals. These signals are then transmitted to the brain, where they are processed and interpreted as visual images. This complex interaction between light and the retinula demonstrates the remarkable adaptations that have evolved in the animal kingdom.In addition to their role in vision, the retinula cells also contribute to other sensory functions. For example, some species of insects can detect polarized light, which helps them orient themselves and navigate more efficiently. This ability is largely attributed to the specialized structure of the retinula and its arrangement within the ommatidia. As scientists continue to study these fascinating structures, they uncover new insights into how different species have adapted their visual systems to suit their ecological niches.The study of the retinula and compound eyes not only enhances our understanding of biology but also inspires advances in technology. Researchers are exploring ways to mimic the structure and function of the retinula in the development of artificial vision systems, such as cameras and sensors. By understanding how these natural systems work, scientists hope to create devices that can replicate the exceptional capabilities of insect vision.In conclusion, the retinula is a remarkable example of nature’s ingenuity. Its role in the visual systems of many invertebrates highlights the complexity and diversity of life on Earth. As we continue to learn more about these intricate structures, we gain a deeper appreciation for the evolutionary processes that shape the natural world. The study of the retinula not only enriches our knowledge of biology but also opens new avenues for technological innovation, proving that nature remains an endless source of inspiration for human creativity.

生物学的迷人世界充满了复杂的结构和功能，使生物能够在其环境中茁壮成长。一个这样的结构是retinula，它在许多无脊椎动物的视觉系统中发挥着至关重要的作用。retinula是一组位于昆虫、蜘蛛类和其他一些节肢动物复眼中的光敏细胞。这些细胞对于检测光线和形成图像至关重要，使这些生物能够有效地导航其周围环境。理解retinula的功能需要更仔细地观察复眼是如何工作的。与脊椎动物的单透镜眼不同，复眼由成千上万的小透镜组成，称为小眼（ommatidia）。每个小眼都包含自己的retinula，其中含有对不同波长光敏感的光感受器细胞。这种独特的排列使昆虫能够感知广阔的视野并检测快速运动，使它们能够躲避捕食者和寻找食物来源。retinula由几种类型的细胞组成，包括含有光色素的杆状细胞（rhabdomeres），这些色素吸收光线。当光线照射到这些色素时，会触发一种生化反应，产生电信号。这些信号随后被传输到大脑，在那里被处理并解释为视觉图像。光与retinula之间的这种复杂相互作用展示了动物王国中进化出的非凡适应性。除了在视觉中的作用外，retinula细胞还对其他感官功能有所贡献。例如，一些昆虫种类可以检测偏振光，这帮助它们定向并更有效地导航。这种能力主要归功于retinula的特殊结构及其在小眼中的排列。随着科学家们继续研究这些迷人的结构，他们揭示了不同物种如何适应其生态位的新的见解。对retinula和复眼的研究不仅增强了我们对生物学的理解，还激励了技术的进步。研究人员正在探索模仿retinula的结构和功能的方法，以开发人工视觉系统，例如相机和传感器。通过理解这些自然系统的工作原理，科学家希望创造出能够复制昆虫视觉卓越能力的设备。总之，retinula是自然智慧的一个非凡例子。它在许多无脊椎动物视觉系统中的作用突显了地球生命的复杂性和多样性。随着我们继续深入了解这些复杂的结构，我们对塑造自然世界的进化过程有了更深刻的理解。对retinula的研究不仅丰富了我们对生物学的知识，还为技术创新开辟了新的途径，证明了自然依然是人类创造力的无尽灵感源泉。