retina - Definition & Meaning

(anatomy) the sensory membrane at the back of the eye that transmits light signals to the brain through optic nerves(anatomy) the sensory membrane at the back of the eye that transmits light signals to the brain through optic nerves

The retina, located at the back of the eye, is a thin, light-sensitive layer that plays a crucial role in vision. It contains specialized cells called photoreceptors, including rods and cones, which convert light into electrical signals. These signals are then transmitted to the brain through the optic nerve, where they are processed and interpreted as visual information. The retina's intricate structure and arrangement of photoreceptor cells enable the perception of colors, shapes, and details, forming the foundation of visual perception. It acts as a vital sensory component, allowing us to see and perceive the world around us.The retina, located at the back of the eye, is a thin, light-sensitive layer that plays a crucial role in vision. It contains specialized cells called photoreceptors, including rods and cones, which convert light into electrical signals. These signals are then transmitted to the brain through the optic nerve, where they are processed and interpreted as visual information. The retina's intricate structure and arrangement of photoreceptor cells enable the perception of colors, shapes, and details, forming the foundation of visual perception. It acts as a vital sensory component, allowing us to see and perceive the world around us.

例句

The retina is the innermost layer of the eye that contains photoreceptor cells responsible for detecting light and initiating visual signals.
视网膜是眼睛的最内层，包含负责检测光线并启动视觉信号的光感受器细胞。
Light-sensitive cells in the retina, known as rods and cones, convert light energy into electrical signals that are transmitted to the brain via the optic nerve.
视网膜中的光敏细胞，即视杆细胞和视锥细胞，将光能转化为电信号，通过视神经传输到大脑。
The macula is a small area near the center of the retina responsible for sharp, central vision.
黄斑是视网膜中心附近的一个小区域，负责敏锐的中央视觉。