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photoreceptors
Kasandra Hegmann
Wiki User
∙ 12y agoPhotoreceptors do not signal color; they only signal the presence of light in the visual field.
A given photoreceptor responds to both the wavelength and intensity of a light source. For example, red light at a certain intensity can produce the same exact response in a photoreceptor as green light of a different intensity. Therefore, the response of a single photoreceptor is ambiguous when it comes to color.
To determine color, the visual system compares responses across a population of photoreceptors (specifically, the three different cones with differing absorption spectra). To determine intensity, the visual system computes how many photoreceptors are responding. This is the mechanism that allows trichromatic color vision in humans and some other animals.
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What is the order of impulse conduction thru reflex arc?
A reflex is an automatic response, that protects the organism from a harmful stimulus. The receptors detect a stimulus which generates a nerve impulse along the sensory neurone to the Central Nervous System (CNS). The CNS decides the appropiate response to the stimulus. The nerve impulse then travels across a synapse to the relay neurone, across another synapse to the motor neurone to the effector. This is normally a muscle or an organ which moves or responds to bring about a response appropiate to the stimulus.
What is a message sent from a sensory neuron to an interneuron and then goes on to the motor neuron?
The message is transferred with an electron signal, pulses (arcing between the two neurons). This is similar to an electrical circuit (in which electrons also flow to different circuit components), or to a fiber optic line (where pulses of light serve as substitutes to the electrons).
Light sensitive worker needed to receive visual images and transmit impules to the brain?
the image passes from neuron to neuron through neurotransmitters until it reaches the brain, where the neurotransmitters are read
Rods and cones are sensory cells that respond to light and are known functionally as?
photoreceptors
What sensory receptors are found in the epidermis and detect light pressure and vibration?
Meissner's corpuscles
What type of sensory neuron would likely respond to a green light?
photoreceptors
Neurons that detect stimuli in the environment are known as?
Sensory (afferent) neurons
What is the order of impulse conduction thru reflex arc?
A reflex is an automatic response, that protects the organism from a harmful stimulus. The receptors detect a stimulus which generates a nerve impulse along the sensory neurone to the Central Nervous System (CNS). The CNS decides the appropiate response to the stimulus. The nerve impulse then travels across a synapse to the relay neurone, across another synapse to the motor neurone to the effector. This is normally a muscle or an organ which moves or responds to bring about a response appropiate to the stimulus.
What is a message sent from a sensory neuron to an interneuron and then goes on to the motor neuron?
The message is transferred with an electron signal, pulses (arcing between the two neurons). This is similar to an electrical circuit (in which electrons also flow to different circuit components), or to a fiber optic line (where pulses of light serve as substitutes to the electrons).
Can light have color?
No. Color is a sensory perception of the various wavelengths of light.
Which sensory receptor is responsive to light?
Photoreceptor
What do you get when you mix green and white colors?
You get light green.
A sentence for sensory?
The fans at the concert were almost louder than the music, and the light show was stunning. The whole experience was sensory overload. Sensory is an adjective.
The sensory receptors specialized to respond to light energy are?
Sensory receptors are a type of sensory nerve. The sensory receptors that are specialized to respond to light energy are called stimuli.
What do telecscopes collect?
Light, data, sensory information
What are the sensory receptors for light?
Photoreceptors - rods and cones.
Why is the green light green?
Because a green light has a light bulb behind green plastic.
