Action potential

    Page 2 of 50 - About 500 Essays
  • Biceps Muscles Lab Report

    Figure 1. An EMG Tracing of Triceps and Biceps Muscles Co-activation. EMG signal produces an electrical activity of the muscle fibers active at a moment time. The electrical activity is measured in millivolts per milliseconds. The top channel shows the bicep EMG, while the bottom EMG correlates to the triceps contraction traces. Shown on the top graph, there are two periods of bicep activation, each last approximately 1.5ms. When the biceps are activated, it produces increasing amplitude peaks,…

    Words: 811 - Pages: 4
  • Amplitude Modulations

    spatial summation (Maler and Rogers 1981). It will not fire upon input from only one T unit, it must receive synchronous input from various T units converging at the spherical cell at the same time (Maler and Rogers 1981). When this occurs, an action potential is generated. This was determined by a clever experiment in which, a fish was administer just enough anesthesia to disable its EOD (Maler and Rogers 1981). The researchers replaced its EOD with one that they produced and were able to…

    Words: 2182 - Pages: 9
  • Ketogenic Diet Case Study

    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…

    Words: 1450 - Pages: 6
  • The Importance Of Resting Membrane Potential

    Resting Membrane Potential When a neuron is not transmitting a signal, it is at rest. During resting potential, between the inside and outside of the neuron there is an ion displacement. The inside of the neuron is negative in comparison to the outside. The outside of the cell has a positive charged sodium and negatively charged chlorine, while potassium, positively charged, is more heavily charged inside the cell. This difference in the charge of sodium, chloride, and potassium maintains the…

    Words: 815 - Pages: 4
  • Essay On Resting Membrane Potential

    cord. In the spinal cord the axon on will send signals to many neurons from other cells and then it will generate an order. The membrane potential is an electrical state of the cell membrane and it allows gradients that cause ions to move across the cell membrane. The dispersal of charge across the cell membrane is measured in (mV). The resting membrane potential is the difference between the charges inside and outside the sarcolemma. The intracellular concentration consists of sodium (Na+),…

    Words: 935 - Pages: 4
  • Resting Membrane Potential Case Study

    1. The resting membrane potential is the potential difference across the cell membrane of excitable cells such as nerve and muscle cells. The 3 major factors that establish a resting membrane potential are as follows: (1) Non-diffusible anions: The resting membrane potential is influenced by the presence of large non-diffusible anions (proteins, nucleic acids and organic phosphates) inside a cell. The presence of large non-diffusible anions inside a cell attracts a large number of cations and…

    Words: 1103 - Pages: 4
  • Voltage Gated Sodium Channels Case Study

    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…

    Words: 861 - Pages: 4
  • Reaction Time And Regression Analysis

    colour change) causes these ion channels to open producing a change in the membrane potential of the receptor cell/s resulting in depolarisation. Once a threshold level of depolarisation is reached, approximately 15mv, the receptor cell stimulates the production of action potentials that are conducted along the membrane of a nerve fibre towards the central nervous system (the brain and spinal cord). An action potential occurs like this: 1. A sensory nerve cell detects a stimulus (e.g. heat,…

    Words: 2045 - Pages: 8
  • Neurular Tissue Analysis

    intercellular communication through changes in membrane potential and synaptic connections” [5] where as a glial cell is a support cell that surrounds and insulates some structures of the neuron. This essay is mainly going to focus in detail on neurons, their basic structure and how they communicate. It is going to explore how an electrical signal is passed on…

    Words: 1279 - Pages: 6
  • Summary: The Importance Of Pain In The Human Body

    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 voltage-gated sodium channels open up, and the inside of the cell becomes highly positive due to all of…

    Words: 770 - Pages: 4
  • Page 1 2 3 4 5 6 7 8 9 50

Related Topics:

Popular Topics: