exited to transmit the signal
If a cell gets too large for the amount of DNA it has, it may struggle to effectively regulate gene expression and control cell functions. This could lead to issues with protein production, cell division, and overall cellular health. Ultimately, the cell may become dysfunctional or die.
When light is absorbed by a rod cell in the retina, a series of chemical reactions occur that lead to the activation of the visual pigment rhodopsin. This triggers an electrical signal that is sent to the brain via the optic nerve, where it is processed and interpreted as visual information.
Active cell.
Vacuoles merge with the cell membrane and then open
If a cell malfunctions, it may not be able to perform its normal functions, which can lead to issues like cell death or diseases. When a cell dies, it can release its contents, potentially causing inflammation or triggering an immune response. The body has mechanisms in place to remove and replace malfunctioning or dead cells to maintain proper functioning.
It diffuses across a small gap called a synapse between the two nerve cells. It is passed as a neurotransmitter (in chemical sacs). They reach the end of one cell and the impulse is converted into neurotransmitters, which are released from that cell, diffuse across the gap, and land on the receptor site, where they are converted back into electrical impulses.
they go nerve to nerve till it gets to the brain first is a nerve then the dendrite then the brian
When a neuron gets excited from a neighboring cell (from neurotransmitters) it gets 'leaky' to certain ions like sodium, potassium, calcium and chloride - and in doing so its state of electrical excitability changes. If it changes by just the right amount then special proteins called 'voltage-gated ion channels' will open allowing a huge influx of even more ions (usually sodium) causing a wave of electrical charge to flow away from the cell body down its axon to its axon terminal - where it will then release its neurotransmitters.
When the action potential reaches the end of an axon, it causes special chemical messages called neurotransmitters to be released across the space between the neurons (the synapse).
The nerve gets pinched between the vertebrae.
then eather it's mutated or will die
In part, yes. The nerve cell is what ensures the message of an external or internal stimulus gets to the brain so we are consiously aware of that stimulus. However, in order for a nerve cell to get the message, it must receive an input from a receptor. As such, the receptors at the end of a nerve cell are the most directly responsible for our sensitivity. Some examples of the receptors are: - nociceptors - mechanoreceptors (meissners corpuscles, etc.) - prorioreceptors (muscle spindles) - chemoreceptors (taste buds)
i really dont know! help!! LOL
acetylcholine and norepinephrine are both excitatory neurotransmitters Acetylcholine (learning and memory) Nor-epinephrine gets you fired up (flight or flight) and also gets you focused. Drdenisep@aol.com
the membrane stretches and adds more material and subsance so it is able to stretch
Cellular respiration is right. The four functions that require energy are movement, caused by muscle cells. Making proteins or enzymes and cell division caused by all or many cells. And sending nerve impulses which is caused by nerve cells.
Cell membranes in animal cells can break if the cell gets to large because of excessive intracellular water. This process is called cytolysis. This generally does not happen in plants because plant cell walls are very strong. The cell wall can withstand the pressure of the water-engorged cell.