Action potential

    Page 4 of 50 - About 500 Essays
  • Earthworm Lab Report

    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…

    Words: 1461 - Pages: 6
  • ECG Signal Essay

    CHAPTER 2 2.1 ELECTROCARDIOGRAM The ECG Signal is a graphical representation of the electromechanical activity of system. The various propagation action potentials within the heart produce a current flow, which generates an electrical field that can be detected, in significantly attenuated form, at the body surface, via a differential voltage measurement system. The resulting measurement, when taken with electrodes in standardized locations, is known as the electrocardiogram. The ECG signal is…

    Words: 2200 - Pages: 9
  • Unit 4 The Brain Analysis

    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 the sensitivity of the ion channel receptors in the cells. Neuromuscular junctions - synapses formed between motor neurones and muscle cells. Electrical synapses - the membranes of the two cells actually touch and they share proteins. The action potential can pass…

    Words: 2375 - Pages: 10
  • Complications Of The Nervous System

    My phone is sitting next to me on my desk when I hear it begin to ring. I pick it up in my hand and look at the screen to see who is calling me. When I recognize my mother’s caller ID, I tap a button to accept the call. I bring the phone to my ear and hear my mother’s voice through the speaker. We talk for a few minutes, and then eventually we say goodbye. I end the call and place the phone back onto my desk. The body system that enables me to successfully complete this phone call is the…

    Words: 1095 - Pages: 4
  • Glutamate Degradation

    After astrocytes remove glutamate from the ECS, glutamate must be isolated and degraded. Glutamate transporters are bidirectional, so intracellular elevations of glutamate levels will lead to an electrochemical gradient-mediated release if the molecule is not destroyed. If glutamate release is unregulated glutamate accumulates in the ECS and impairs the survival of neurons. Glutamate dehydrogenase (GDH) helps degrade glutamate into a-ketoglutarate, an intermediary in the tricarboxylic acid (TCA)…

    Words: 785 - Pages: 4
  • Nerve Cell Synthesis

    This essays purpose is to contrast the mechanisms that underlie signal propagation within and between nerve cells. It is important that this is answered correctly, as the actions of the mechanisms are crucial for what is going on inside of our bodies. To begin with, the basic anatomy of the neuron has to be explained, to understand what exactly happens, and how it happens. A neuron cell is most likely the supreme cell within the body of a mammal. Like any other cell, the neuron cell has the…

    Words: 1530 - Pages: 6
  • Important Vocabulary: The Important Nervous System

    Important Vocabulary (highlighted in the handout): Stimulus, neurons, dendrites, 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…

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

    postsynaptic nerve terminal (the dorsal horn neuron)[1]. Specifically activation of α-amino-3-hydroxy-5-methylisoxazole-4-propionate (AMPA)-type and N-methyl-D-aspartate (NMDA)-type glutamate receptors lead to depolarization and the generation of action potentials which transmits the pain impulses through ascending pathways (e.g. spinothalamic tract ) to the brain. Neuropeptides like substance P are also released into the synapse and have been shown to prolong the depolarization wave elicited by…

    Words: 1169 - Pages: 5
  • Skeletal Muscle Lab Report

    also known as an Action Potentials (AP), which propagate down an axon to transmit a signal to another cell. The signal may be transmitted to another neuron through a synapse of another dendrite or will form a Neuromuscular junction with a skeletal muscle cell. Skeletal muscle consists of many multinucleated muscle fibers connected to intercalation of sarcoplasmic…

    Words: 867 - Pages: 4
  • Hyperkalemic Paralysis Case Study

    important to examine the ways that this disorder can be controlled. Low potassium diets, regular turnout, and a constant schedule have been shown to effectively manage the condition of Hyperkalemic Periodic Paralysis. The role of potassium in action potentials, as well as in muscular contraction, is reviewed. Also investigated is the ideal way to feed a horse affected with this condition. In recent years, a new condition in the performance horse industry has surfaced which is affecting the…

    Words: 1591 - Pages: 7
  • Page 1 2 3 4 5 6 7 8 9 50

Related Topics:

Popular Topics: