Excitatory postsynaptic potential

    Page 1 of 16 - About 156 Essays
  • Green Fluorescent Protein (GFP)

    The study of the brain began by mapping structures such as lobes, cortexes, and regions. As modern medicine continues to make advancements so does the understanding of complex processes which take place inside of the human body such as the firing of action potentials in neuronal cells in the brain. The research presented in the paper “High-Fidelity optical reporting of neuronal electrical activity with an ultrafast fluorescent voltage sensor” shows just how far brain mapping has come and how far it still has to go before all pathways are truly understood. This paper presents the medical community the opportunity to harness the versatility of Green Fluorescent Protein (GFP) in order to show how action potentials are initiated, executed, and…

    Words: 1522 - Pages: 7
  • Action Potential Essay

    Neurons communicate over long distances using action potentials. Action potentials occur as a result of rapid changes in membrane permeability. Resting membrane potential of a cell is approximately -70 millivolts. Large anions trapped inside the cell, negatively charged proteins, as well as a higher concentration of positively charged ions outside than inside are some of the factors that contribute to the initial negative charge within the cell at resting value. Ion concentration gradients as…

    Words: 766 - Pages: 4
  • Intern Synapse Case Study

    Short-term plasticity at the ORN  PN synapse could result in PN responses that are strongest during the rising phase of the ORN response since the ORN  PN synapses display short-term depression that causes ORN spikes that arrive later to produce smaller postsynaptic potentials than the ones produced by earlier spikes. In depressing synapses, successive action potentials result in smaller and smaller postsynaptic responses. The reduction in postsynaptic responses could be due to smaller amount…

    Words: 1054 - Pages: 4
  • Action Potentials And Action Potentials

    Abstract Action potentials can be defined as the signals and the pathways sent through the nervous system. They are essential in carrying out various actions that are administered by the brain. This effect of action potentials help us to feel cold, warmth ,use the sensory actions of the eye etc. and the back forth signaling between the brain and the nerve cells helps the brain to carry the right action. Action potentials are housed by neuron structures which are made up of axons and dendrites.…

    Words: 2033 - Pages: 9
  • Glutamate Degradation

    may to be reduce GABA synthesis and release from inhibitory synapses and thus enhance network excitability. Hyperactivation in the CA1 hippocampal region is specifically evident as this area is extensively regulated by inhibitions pathways (Coulter and Steinhauser, 2015). GABA also functions as a gliotransmitter to activate high affinity GABA receptors to mediate long lasting inhibition. Release of GABA from glial cells in the cerebellum is independent of neuronal activity and works along…

    Words: 785 - Pages: 4
  • Central Nervous System

    cannot create proteins because it has no rough endoplasmic reticulum. A plasma axolemma (cell membrane) surrounds the entire axon to protect it. In a multipolar neuron, the axons’s base is attached to the soma at a thickened cone-shaped region called the axon hillock. Nerve impulses occur between the hillock and initial segment where action potentials begin (an area called the “trigger zone”). Sometimes axons have side branches called collaterals, which usually branch off at a 90 ° angle and…

    Words: 1620 - Pages: 6
  • Home Observation Essay

    presenting my outline for home-building on this mountainous terrain, and my knowledge of the movement of the land underneath the surface, will be valuable for local real estate and potential homebuyers. Lot S, Lot N,…

    Words: 1333 - Pages: 6
  • Important Vocabulary: The Important Nervous System

    neurotransmitters, axon, myelin, action potential, graded potential, transmembrane potential, neuroglia, cerebrum, spinal cord What is the central nervous system? It’s a system which consists of the nerves in the brain and spinal cord. This system only makes up about 3% of a human’s body weight but serves a vital function, gathering information about and reacting to its environment and any stimulus. Don’t Shoot the Messenger Much of the CNS is made up of neurons, or nerve cells. Each neuron…

    Words: 1805 - Pages: 8
  • Response To Dr Foreman's Case Answers

    Response to Dr Foreman’s questions a. Discuss the nociceptive mechanisms, including the postsynaptic receptors of the spinal neurons, transmitters, pathways and nuclei that are activated when the injury occurs. Also include in your answer the explanation for the sharp pain and the long lasting pain that you experience with this injury. Nociceptors are specialized peripheral sensory neurons that are activated by noxious stimuli. These nociceptors are the free nerve endings of primary sensory…

    Words: 1169 - Pages: 5
  • Unit 4 The Brain Analysis

    Excitatory ion channel synapses have neuroreceptors that are Na+ channels, when Na+ channels open, depolarisation takes place. However inhibitory ion channels consist of neuroreceptors that are Cl- channels, when the chlorine anion channels open, hyperpolarisation takes place, making action potential unlikely. Non channel synapses - neuroreceptors are enzymes that are bound to the membrane. When activated, they catalyse (cause or accelerate) the 'messenger chemical', which can have an affect on…

    Words: 2375 - Pages: 10
  • Previous
    Page 1 2 3 4 5 6 7 8 9 16

Related Topics:

Popular Topics: