What is color opponency and how is it coded in the retina?

Q: How does the eye regulate the amount of light that falls on the retina?

A: The donut-shaped structure present in front of the eye is called iris. Iris has a small hole in the…

Q: How do the different types of taste receptors stimulate the release of a neurotransmitter?

A: Neurotransmitters are chemical messengers that are useful in transmitting messages from nerve cells…

Q: which cells direct colored light? Are these cells in the choroid,sclera, or retina layer of the eye?

A: The eye has rods and cones. Rods help us to see in the dark. Cones help us to see in bright light.

Q: What is the mechanism of action of Consensual Light Reflex?

A: The reflex arc is a nerve pathway involved in the reflex action. In a reflex arc, signals travel…

Q: What types of stimuli to neurons in the primary visual cortex respond to?

A: The primary visual cortex is located in the occipital cortex. Different types of neurons respond to…

Q: Do gustatory taste cells have BOTH chemoreceptors and mechanoreceptors? The chemoreceptors are…

A: Receptors are important for detecting different stimuli in our environment and relaying that…

Q: What is the difference between retinal, opsin, and rhodopsin?

A: Most vertebrates have two photoreceptor cells that are involved in vision. These cells are described…

Q: What are the steps in visual processing?

A: The term visual processing refers to the ability of the brain to interpret and process the visual…

Q: Name the two layers of the retina.

A: The area of retina which provides highest visual acuity is the FOVEA CENTRALIS. The highest visual…

Q: Which dendrites detect mechanical energy and Which dendrites detect thermal energy inside of the…

A: Neurons and nerve glial cells form a large network in the body called the nervous system that helps…

Q: Identify the afferent/sensory nerve involved in the light reflex and the efferent/motor nerve…

A: The pupillary light reflex permits the eye to change the measure of light arriving at the retina and…

Q: Name the two types of sensory cells present in retina.

A: A photoreceptor cell is a particular kind of neuroepithelial cell found in the retina that is fit…

Q: Color vision is trichromatic in that 3 primary colors can mix and match all other colors. However,…

A: Introduction: The posterior eye segment comprises the retina. It is the innermost and photosensitive…

Q: Do cells deeper into the visual system respond to MORE or LESS complex stimuli?

A: The visual system is significant for several organisms as it is accountable for their vision. This…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.