Glossary P
Glossary P
Photopigment is a chemical that releases energy when struck by light Moreover, Photopigments are chemical substances that absorb light, thereby starting the complex transduction process that transforms physical electromagnetic energy into an electrochemical neural impulse; rods and cones contain different types of Photopigments; different types of Photopigments absorb differing amounts of light and may detect different hues
Photoplethysmograph refers to a device used to measure vaginal lubrication. Photoplethysmograph is an acrylic cylinder that is placed inside the vagina in order to measure physiological sexual arousal in the female.
Photoplethysmograph is also called a Photometer.
Photoreceptors transduce light energy into electrochemical energy, the third layer of the Retina contains the Photoreceptors,
Phrase marker refers to a tree diagram that represents the Phrase structure of a sentence.
Phrase structure refers to the hierarchical organization of sentences into phrases.