rod segment - meaning and definition. What is rod segment
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What (who) is rod segment - definition

PHOTORECEPTOR CELLS THAT CAN FUNCTION IN LOWER LIGHT BETTER THAN CONE CELLS.
Rod cells; Retinal rod; Retinal rods; Rod (cell); Rod (biology); Rod (eye); Rod (retina); Rods (retina); Rod outer segment; Rods (eyes); Rods (eye); Retina rod cell; Rod Outer Segment; Rod (vision); Rod (optics)
  • doi=10.1113/jphysiol.1980.sp013097}}</ref>
  • Anatomy of a Rod Cell<ref>Human Physiology and Mechanisms of Disease by Arthur C. Guyton (1992) p. 373</ref>

Rod cell         
Rod cells are photoreceptor cells in the retina of the eye that can function in lower light better than the other type of visual photoreceptor, cone cells. Rods are usually found concentrated at the outer edges of the retina and are used in peripheral vision.
Ground segment         
  • Select ground segment facilities worldwide
  • Control center at NASA's [[Jet Propulsion Laboratory]]
  • Radio dishes at an [[Embratel]] earth station in [[Tanguá]], Brazil
GROUND-BASED ELEMENTS OF A SPACECRAFT SYSTEM
Satellite control segment; Ground Segment; Transfer segment; User segment; Ground control segment; Ground control system
A ground segment consists of all the ground-based elements of a space system used by operators and support personnel, as opposed to the space segment and user segment. The ground segment enables management of a spacecraft, and distribution of payload data and telemetry among interested parties on the ground.
Event segment         
Event Segment
A segment of a system variable in computing shows a homogenous status of system dynamics over a time period. Here, a homogenous status of a variable is a state which can be described by a set of coefficients of a formula.

Wikipedia

Rod cell

Rod cells are photoreceptor cells in the retina of the eye that can function in lower light better than the other type of visual photoreceptor, cone cells. Rods are usually found concentrated at the outer edges of the retina and are used in peripheral vision. On average, there are approximately 92 million rod cells (vs ~6 million cones) in the human retina. Rod cells are more sensitive than cone cells and are almost entirely responsible for night vision. However, rods have little role in color vision, which is the main reason why colors are much less apparent in dim light.