Physiology · Sensory System · Medium
Photoreceptor
Meaning: A light-sensitive cell in the retina, either a rod or a cone.
In practice: Retinitis pigmentosa causes progressive loss of photoreceptor cells, starting with night vision.
Quick check
Two questions on related physiology words.
Which word means: The breakdown of glucose to produce energy in the cytoplasm.
Answer: Glycolysis
Which word means: The sense of the position and movement of the body and limbs without looking.
Answer: Proprioception
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