多选题
区别不同类型视锥细胞的根据是：（）
发布日期：2020-12-11
视蛋白的结构不同
视黄醛的结构不同
形态上的差异
光谱吸收特性不同
感受器电位的不同
试题解析
视锥细胞
视细胞的一种，位于视网膜内。因为它能接受光刺激，并将光能转换为神经冲动，故亦称光感受器。由外节、内节、胞体和终足四部分组成。其外节为圆锥状，故名视锥细胞。内含有感光物质(视紫蓝质)。在光刺激下，感光物质可发生一系列的光化学变化和电位改变，使视锥细胞发放神经冲动。视锥细胞是感受强光和颜色的细胞，对弱光和明暗的感知不如视杆细胞敏感；而对强光和颜色，具有高度的分辨能力。在视网膜的黄斑中央凹处，只有视锥细胞，光线可直接到达视锥细胞，故此处感光和辨色最敏锐。而以视杆细胞为主的视网膜周缘部，则光的分辨率低，色觉不完善，但对暗光敏感。家鸡等动物视网膜中视锥细胞较多，故黄昏以后视觉减弱。人的视网膜中约有600万～800万个视锥细胞。
- 中文名
- 视锥细胞
- 种类
- 三种
- 外文名
- Cone Cell
类型
类型，指包含由各特殊的事物或现象抽出来的共通点的抽象概念；在 .NET 框架中，类型(type)又被称作组件(component)。通常情况下，应用程序既包括我们自己创建的类型，也包括微软和其他一些组织创建的类型。
- 中文名
- 类型
- 注音
- ㄌㄟˋ ㄒㄧㄥˊ
- 释义
- 包含由各特殊的事物或现象抽出来的共通点的抽象概念
- 拼音
- lèi xíng
- 英译
- type;pattern
- 出处
- 《自序》
区别
区别是一个汉语词汇，有区分;辨别的意思。
- 中文名
- 区别
- 注音
- ㄑㄩ ㄅㄧㄝ ˊ
- 拼音
- qūbié
- 基本解释
- 区分;辨别
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