What prevents a nerve signal from travelling “backwards” towards the cell body?

Q: Cascading effect occurs when a signal is receive by the receptor ( " turned on" ) but how do cells…

A: Signal cascades convey signals to the cell through the phosphorylation of molecules by kinases…

Q: What happens to conduction through axons that have lost their myelin

A: Myelin sheath is an insulating covering in the neuron over the axon. The myelin is formed in the…

Q: What do nuclear receptors regulate?

A: Nuclear receptors are the receptors which present inside the cell or at the membrane of nucleus…

Q: What is signal transduction?

A: The cell can be defined as the basic membrane-bound unit which contains the fundamental molecules of…

Q: Why are many drugs that are used to treat nervous system diseases or to affect brain function…

A: There are various disorders related to the nervous system. Neuroscience is known as the branch or…

Q: What is the function of the sodium-potassium pump during the nerve impulse transmission? Which is…

A: Many cell (plasma) membranes contain the sodium–potassium pump. The pump is powered by ATP and…

Q: Contrast the two uses of the word receptor?

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: Where are the nerve cells found in the sensory nerve that go from, for example, the heart to the…

A: Need to find where the nerve cells are found in sensory nerve that goes from heart to…

Q: hen a neuron opens voltage-gated Na+ channels, what happens to the membrane potential?

A: Introduction: Voltage-gated Na+ channels initiate and propagate action potentials in neurons and…

Q: What membrane protein of the neuron is responsible for briefly increasing the Na+ permeability of…

A: Transporters refer to the membrane protein that transports the molecules and ions from outside of…

Q: Why is it important that different body structures have differentdensities of nerve innervation?

A: The palmar skin of the palms and the periorbital area of the face are by far the most highly…

Q: What happens to sodium channels and potassium channels during repolarization of a neuron? both…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: How do signals not get mixed up during cell communication?

A: Introduction  Signals are molecules that transport information within cells. They serve as…

Q: Auditory neural signals are sent when HAIR CELLS in our inner ears open ion channels along their…

A: The fluid that surrounds the hair cells, known as endolymph, is high in potassium. When the hair…

Q: What is the chemical nature of receptors? Where are they located?

A: Cell signalling or cellular communication is a mode of interaction between biological components to…

Q: How does the release of Ca²+ help pass along the signal?

A: Introduction  Calcium signalling is the employment of calcium ions (Ca2+) to communicate and drive…

Q: How do cells signal to each other?

A: A cell is the smallest unit of life, which is the basic structural, functional, and biological unit…

Q: How do proteins and other chemicals synthesized in the soma get to the axon terminals? By what…

A: Each neuron consists of a cell body called Cyton and it has numerous branches called nerve fibers…

Q: In what direction does a message move in a neuron?

A: The neurons are the basic cells or units of the brain. These specialized cells have been developed…

Q: what is phase shift and circadian rythm

A: A circadian rhythm is a roughly 24 hour cycle in the physiological processes of living beings,…

Q: What is responsible for action potentials propagating in one direction? The inactivation of voltage…

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: In the nervous system, there are both electrical synapses, which pass electrical signals quickly and…

A: The nervous system is responsible for the control and coordination of the parts of the body. The…

Q: What part of the nerve cell brings signals toward the cell body?

A: A type of cell that receives and sends messages from the body to the brain and back to the body is…

Q: How a receptor relays message to the interior of a cell ?

A: The type of protein that binds to a specific molecule (a ligand),  is referred to as a receptor.…

Q: What is honest signaling? Describe one honest signal that you produce.

A: Honest signaling   Signaling theory is a body of theoretical work in evolutionary biology that…

Q: Why do we call the nervous system a "signal system?" Can you compare it to anything else?

A: Cells make up the building blocks of the living organism. A group of cells makes tissues which in…

Q: When light strikes a receptor, does the receptor excite or inhibit the bipolar cells? What effect…

A: Bipolar cells are named as they are inbetween the ganglion and photoreceptor cell and they are…

Q: How does a signal cross the synaptic cleft?

A: The neurons communicate with each other by propagating action potentials. Action potentials are…

Q: Select the correct order of signal transduction / cell communication / cell signaling.

A: Series of molecules that relay signals inside a cell are known as signal transduction. This cell…

Q: What mechanisms in the cell terminate its response to a signaland maintain its ability to respond to…

A: Cell signaling is part of any communication process that conducts the basic activities of cells and…

Q: How does signal transduction work?

A: The cell signalling is the process of cell communication within the body. It is the ability of cells…

Q: What Happens When Receptor Signals Are Transduced?

A: Signal transduction is a process in which signal molecules assist the cell in communicating with it,…

Q: How is the synaptic cleft cleaned up to end Signal Transmission

A: An electric impulse to the nerve passes through the first axon. When the nerve impulse at the end of…

Q: Which of the following defines the interneurons?   Neurons that are excited by a specific…

A: Neurons are nerve cells that relay information to other nerve cells, muscle cells, and gland cells.…

Q: Which of the following would be used by a cell to signal cells close by? You can choose multiple…

A: Cell signaling is the process of cell communication within the body. It is the ability of cells that…

Q: how an action potential occurs in a neuron and contributes to neuronal communication?

A: Action potentials are nerve signals. Neurons produce and direct these signs along their cycles to…

Q: How does the nervous system transmit messages?

A: The nervous system is a complex biological component made up of a huge network of nerves. The…

Q: After a receptor cell is stimulated, the bipolar cell receiving input from it shows an immediate…

A: The retina is the major tissue that receives light and is located at the back of the eye. It…

Q: how a neuron can repair itself. What increases the likelihood of repair; what decreases the…

A: The sensory system of the body that is responsible for the transmission of impulses is called the…

Q: In the diagram, where is the axon terminal?

A: Concentric contraction in biceps brachii occurs when muscle shortening happens or when a weight in…

Q: How Are Receptor Signals Transduced?

A: Introduction: When a ligand binds to the outside region of the receptor, signal transduction occurs.…

Q: How are signals transmitted from one end of a nerve cell to the other, and from one neuron to…

A: Neurons are responsible for the electromagnetic conduction of the signals in the form of a stimulus.…

Q: What are the sequences of events by which the binding of a chemical messenger to a receptor causes…

A: A chemical messenger is any substance that is used to deliver a message and can include: Hormone is…

Q: Why is the receptor the important element determiningthe effect a neurotransmitter has on a target…

A: The neurotransmitters are chemical messengers of the body. It transfers a message to a target cell…

Q: What is PNS in the nervous system and how does it contribute to coordination in neural signaling?

A: Ans 1: The peripheral nervous system refers to parts of the nervous system outside the brain and…

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.