Resting potential

The interactions with the taste receptor cells will produce an action potential that will induce an action potential in taste sensory neurons. A neuron has 3 main parts: the dendrite, the cell body, and the axon. Information will be able to move faster in bigger and myelinated axons. In sensory neurons, the action potential is trigger at the dendrite. Each neuron has a cell membrane that encloses each neuron. The cell membrane is semi-permeable…

Tone is a normal state of balance in bodily tissue such as muscle and skin. In resting muscles, it is a state of partial contraction of a muscle to a pre-set length that serves to maintain posture, organ function, such as digestion, and reflexes. Generally speaking, a nerve from the spinal cord, spinal nerve, will grow from the spine to a muscle, it splits to form motor neurons, then contacts the muscle fiber at a point called the neuromuscular junction. This formation, in conjunction with…

It is a specific protein presenting on the membrane of the nerve cells and muscle cells. They are responsible for action potential initiation and propagation in excitable cells (Catterall, Goldin, & Waxman, 2015). Voltage-gated sodium channels open or close to in response to the movement of sodium concentration between inside and outside of the cells. Voltage-gated sodium channels…

the body using electrical synapses. While neurons are made up off a cell body referred to as the soma, dendrites, and axon. Nerves consist of axons and sometimes nerve fibers, and each of those axons has the ability to produce an action potential. Action potential is a well-preserved message as a response to a specific stimulus that travels down the axon. Moreover, sodium/potassium pumps are located in the…

However, I believe the ketogenic diet has so much potential and promise in the future of medicine for the reason that it does not come in a pill or a liquid medicine bottle. There is no long list of side effects, risk of overdose, or prescription needed with the ketogenic diet. We have become so attached…

Potassium channels (KC) are selective transmembrane proteins that allow K+ ions flow down an electrochemical gradient across cell membrane, thus controlling plasma membrane potential in both excitable and non-excitable cells (Szabo, Zoratti&Gulbins, 2010). Evolutionarily conserved KC family is one of the larges and most diverse of ion channels (Table1). Its diversity comes not only from a large number of genes coding for main subunits (over 80 mammalian genes). Many other processes such as…

Earthworm Action Potential Conduction Velocity: The Effects of Various Salts and Neurotransmitters When it comes to performing action potential experiments within the lab, the giant nerve fibers of an earthworm are an important tool for success. They yield a high success rate when compared to other organisms (Kladt, Hanslik, & Heinzel, 2010), and provide a more ethical means of testing how various neurotransmitters affect action potentials, instead of direct use on humans for pharmaceutical…

Hodgkin and Huxley was significant in understanding how the neurons in our body work. They used a giant squid axon because it’s big and therefore makes it easier to measure voltages across the membrane of a cell. It help to understand how the action potential is reached by the cell by using an electrode measuring inside the cell and the ion flux content that’s outside the cell. Since nerve cells in humans are extremely small, they used giant squid axons to get a better understanding of how the…

neuron is at resting state (-70mv) the neuron is more negative on the inside of the cell compared to the extracellular space around it due to the passive channels. Once the sensory receptors have detected a stimulus, the graded potentials open up sodium chemical gates which cause sodium to enter the cell but, for an action potential to occur the graded potential must reach a certain threshold (-55mv). Once the graded potential reaches its threshold it can now turn into an action potential, the…

material of the ball is extremely elastic and can convert kinetic energy from falling into potential energy and back into kinetic energy again with little loss of momentum. They are used in many classrooms because they can easily demonstrate conservation of momentum through a highly elastic collision. Like many things made out of rubber, bouncy balls have very high elasticity, meaning they rapidly return to their resting state after being stretched or squashed. If a bouncy ball is dropped onto a…