Our brain receives more action potentials when our eyes are exposed to light even though our photoreceptors release more neurotransmitter in the dark. Propose an explanation.
Q: Describe the functions of the four photoreceptorproteins in human vision.
A: Photoreceptor proteins are the light sensitive proteins which are involved in the process of sensing…
Q: Discuss the role that inertia plays in the physiology of the vestibular apparatus. Why is there no…
A: Ear is categorized as sensory organ that is related with functions of the hearing and for…
Q: Describe the effects of light on the photoreceptors and explain how these effects influence the…
A: Cells that are present in the retina region of the eye that are responsive towards light are called…
Q: Neurons with ___ receptive fields would respond best to ____ spatial frequencies. A large; low…
A: Neurons are the structural and functional units of the nervous system. The nervous system regulates…
Q: SCIENTIFIC INQUIRY From what you know about actionpotentials and synapses, propose two hypotheses…
A: The two pharmacological agents local and general can result in the state of anaesthesia. Both agents…
Q: The dissociation of rhodopsin in the rods in response to light causes a.the Na+ channels to become…
A: Rods can be defined as the type of photoreceptor cell in the retina. They are sensitive towards the…
Q: Compare the hyperpolarizing response to light in vertebrate rods and cones with the depolarizing…
A: The explanation is given below.
Q: Certain postganglionic neurons cause the pupil of the eye to constrict by releasing what chemical…
A: Post-ganglionic nerve fibres are the nerve fibres that stretch from the ganglion to the effector…
Q: hat is a receptor (generator) potential?
A: When a stimulus having greater strength than threshold strength is applied to a receptor than the…
Q: This question asks you about a typical neuron and NOT photoreceptors. As stimulus intensity is…
A: 1. This question asks you about a typical neuron and NOT photoreceptors. As stimulus intensity is…
Q: Describe how sound waves are transduced into action potentials.
A: A bone named stapes is located in the middle of the year which is related to the convection of sound…
Q: The net current flowing through an ion channel at a cell's resting potential flows in one direction…
A: Hair cells in the cochlea consists of a single mechano-sensitive ion channel, but they can…
Q: Certain postganglionic neurons cause the pupil of the eye to constrict by releasing what chemical…
A: The eyes are the sensory organs that enable vision. The light enters the eyes and activates the…
Q: Which ratio between primary neuron and secondary neuron would allow for the greatest receptive field…
A: The ratio between primary neuron and secondary neuron that allows the greatest receptive field…
Q: Two brown-eyed parents have a child with blue eyes. Briefly explain how this could be possible.…
A: Genes are the specific codes of these amino acids which produces a protein and alleles is the…
Q: Tonic receptors a.are fast-adapting. b.do not fire continuously to a sustained stimulus. c.produce…
A: Receptors are proteins channels in membrane which bind to ligands and creates responses in the…
Q: Describe how the sensory-somatic nervous system reacts by reflex to a person touching something hot.…
A: The somatic nervous system is part within the peripheral nervous system. However, somatic refers to…
Q: miraculin on the perception of taste
A: Miraculin is a taste modifier a glycoprotein extracted from the fruit of berry (Synsepalum…
Q: Describe the effect of light absorption on 11-cis-retinal bound within rhodopsin
A: Introduction Vision is regulated by G-protein coupled receptors (GPCRs) that regulate the ion gated…
Q: Explain why different types of receptor cells and neural circuits are required for day and night…
A: Rods and cones are the two kinds of photo-receptors in the retina of humans. The rods are…
Q: For a ganglion cell that has a red ON center and Green OFF surround, explain how frequent these…
A: Receptive fields of ganglion cells are divided into two fields, one of which is ON center…
Q: Prescription sleep aids, like Ambien, bind to inhibitory receptors onneurons. Explain how these…
A: The neuron is a basic functional unit of the nervous system and is the specialized cells of the…
Q: With what cells do photoreceptors form synapses?
A: The eye is recognized as the vital sense organ of the animals. This consists of special cells that…
Q: We have three types of cones in the retina. Explain how we can see a large range of colors with only…
A: Cone cells are the photo receptors found in the retina of the eye which are meant for color vision…
Q: An enriched environment promotes growth of axons and dendrites in laboratory rodents. What is known…
A: The axon carries all the brain data to sense the surroundings and perform a behavior. Neurons must…
Q: Explain how cadherin molecules aid hearing and the process of mechano-electrical coupling in…
A: Hair cells are found in the vestibular system, which is located in the inner ear. These cells are in…
Q: Considering that all action potentials stimuli? are essentially the same, how do we differentiate…
A: An action potential is defined as a sudden, fast, transitory, and propagating change of the resting…
Q: The threshold level is reached at the neuro
A: Answer 1) Light hit the retina 2) Some sodium channels open in the neuronal membrane of the…
Q: The human eye is sensitive to orange light having a frequency of about 5.0 1014 Hz (a wavelength of…
A: To calculate the energy in joules of photons we will apply the formula E = hv E= energy h =…
Q: one neurotransmitter chemical has multiple actions in the nervous system. How is this possible?
A: Neurotransmitters are the chemical messengers of the nervous system. These chemical messengers…
Q: plese explain how human see colors?
A: There are two types of cells present in the eyes i.e rods and cones.
Q: Explain why some taste receptor cells and all olfactoryreceptor cells use G protein-coupled…
A: G protein coupled receptors (GPCRs) are the membrane receptors that are most diverse and largest…
Q: neurotoxin
A: Tetrodotoxin is the neurotoxin which acts as a sodium channel blocker . It binds to the voltage…
Q: If light strikes only one receptor, what is the net effect (excitatory or inhibitory) on the nearest…
A: A bipolar cell is a kind of neuron with two extensions (one dendrite and one axon). These bipolar…
Q: visual pigments serve as light-sensitive photoreceptor molecules. They are A) inhibitory…
A: The ‘eye of human’ is the most valuable and sensitive sense organ. It is a natural optical…
Q: Signal detection theory suggests that deciding whether a stimulus is present depends partly on the…
A: Signal detection theory is a means to measure the ability to differentiate between…
Q: Why would evolution have enabled blind mole rats to synchronize their SCN activity to light, even…
A: Evolution can be defined as the unrolling of nature through which the species originate and evolve…
Q: The order in which the cells in the eye process light is __________. A) photoreceptors; ganglion…
A: The retina contains photoreceptor cells that convert light signals into sensory nerve impulses. The…
Q: An example of a sensory neuron is one that leads from a pain receptor in the finger to the spinal…
A: When we feel pain, such as when we touch a hot stove, sensory receptors in our skin send a message…
Our brain receives more action potentials when our eyes are exposed to light even though our photoreceptors release more neurotransmitter in the dark. Propose an explanation.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- Human color vision is "produced" by the nervous system based on how three different cone receptors interact with photons oflight in the eye. These three different types of cones interact with photons of different frequency light, as indicated in the following chart:An in-class test of the opponent process theory of color vision relied on a basic principle of neurophysiology to explain color afterimages. What is this basic principle? O If a cell is excited or inhibited for a long period of time by a strong stimulus, when the stimulus is terminated the cell will temporarily "undershoot" or "overshoot" its normal activity rate. Receptor cells are able to respond to a wide variety of sensory inputs, but sensory neurons are only able to respond to a select few types of inputs. Sensory receptors are the first cells to process incoming stimuli, while sensory neurons have to rely on input from receptors in order to function. Retinal ganglion cells act in a non-intuitive "opposite" fashion, being inhibited by a strong stimulus, but excited by a weak stimulus.Certain cells in the retina respond differently to the direction in which objects move. To understand how cells in the retina respond to different visual stimuli, the activity of a retinal ganglion cell was measured while a square moved across its visual field. Which statement best explains the increases in voltage during the periodic spikes? A. Depolarization of a neuron past a threshold voltage causes sodium channels to close. B. Depolarization of a neuron past a threshold voltage causes sodium channels to open. C. Depolarization of a neuron past a threshold voltage causes potassium channels to close. D. Depolarization of a neuron past a threshold voltage causes potassium channels to open.
- In the light, Question options: A the photoreceptor does nothing, therefore the bipolar cells are inhibited. B the photoreceptor hyperpolarizes and stops releasing glutamate onto bipolar cells, which in turn stimulate the ganglion cells. C the photoreceptor depolarizes and releases glutamate onto bipolar cells, stimulating them. D the photoreceptor depolarizes and releases glutamate onto bipolar cells, inhibiting them.PET (positron emission tomography) scans of the brains of people who have been blind since birth reveal high neural activity in the visual centers of the cerebral cortex when these people read Braille. However, when sighted individuals run their fingers over the raised letters of Braille, the visual centers do not show increased activity. Explain these experimental results.In the dark, Question options: A the photoreceptor does nothing, therefore the bipolar cells are inhibited. B the photoreceptor depolarizes and releases glutamate onto bipolar cells, stimulating them. C the photoreceptor hyperpolarizes and stops releasing glutamate onto bipolar cells, which in turn stimulate the ganglion cells. D the photoreceptor depolarizes and releases glutamate onto bipolar cells, inhibiting them.
- Review how photoreceptors within the eye detect light and transmit that information to the brain, by identifying each lettered structure in the figure below and answering the questions that follow: A: B: C: D: E: F: G: Which structure responds to color?: Which structure responds to dim light and movement?: Which two structures release neurotransmitters in response to light?: Which structure binds to those neurotransmitters, relays an action potential, and releases a second set of neurotransmitters?: Which structure binds to this second set of neurotransmitters and relays an action potential through the optic nerve to the brain?: Which direction does light travel through the retina? Toward the choroid or away?: Which direction do neural signals travel through the retina? Toward the choroid or away?:Marie is playing soccer with her friends. At one point, she is texting her sister instead of paying attention to the game. At that moment, Marie is hit hard in the back of the head with a soccer ball and is knocked unconscious. When she comes to, she explains that she saw flashes of light right when she was hit with the ball. How can you explain this phenomenon? Use the ideas of modality and labeled line coding to explain your answer.Help me
- When a single photon from a source of light hits the retina in the eye, it triggers a signal that travels along the optic nerve to the occipital lobe of the brain. The interaction of a photon with the photoreceptors in the retina first causes the movement of sodium ions into a sensory neuron. What happens after the movement of sodium ions? Select one: a. Sodium ions move out of a sensory neuron. b. Potassium ions move out of a sensory neuron. c. Sodium ions move into an interneuron. d. Potassium ions move into an interneuron.Help meoutline the neurochemical transmission and inhibition of pain. Then using the gate-control theory, devise a plan to minimize pain during your next visit to the dentist. Why is this important for you to know in public health