Samenvatting Neuroscience.

ISBN-10 0878936971 ISBN-13 9780878936977
371 Flashcards en notities
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Dit is de samenvatting van het boek "Neuroscience.". De auteur(s) van het boek is/zijn Dale Purves. Het ISBN van dit boek is 9780878936977 of 0878936971. Deze samenvatting is geschreven door studenten die effectief studeren met de studietool van Study Smart With Chris.

Samenvatting - Neuroscience.

  • 1.2 Genetics, Genomics, and the Brain

  • Mutated genes can express in brain pathologies
  • 1.3 "Model" Organisms in Neuroscience

  • Why do we use different animals for studying the nervous system? Which animals do we examine?
    All used animals have their own benefits and asssumptions.
    - Worm
    - Fruitfly
    - Zebra fish
    - Mice
  • 1.4 The Cellular Components of the Nervous System

  • What is the 'neuron doctrine'? (Sherrington, Golgi, Cajal)
    Neurons form a continuous nerve cell network
  • Name some methods that were used to study the nervous system.
    First they used the light microscope and stained neurons with silver salt to study the nervous system. Later in the 1950's when the electric microscope appeared the research became clearer
  • There are similarities between cells and neurons. Organells are also present in the neurons, but have a different location. Mitochondria for example are concentrated near the synapses.
  • 1.5 Neurons

  • What are dendrites?
    Targets for synaptic input from other neurons.
  • The number of synaptic contacts from other neurons is an important determinant of neuronal function
  • What is an axon?
    They convey output information from one to another neuron
  • 1.6 Neuroglial Cells

  • Name the function of glial cells.
    - Recovery and development of neuronal networks
    - Maintaining the ionic milieu of neurons
  • What is the function of microglia?
    To scavenge for 'debris' and are acitve if there is an inflammation (macrophages of the brain)
  • What are astrocytes?
    Stem cells of neurons
  • Where are Schwann cell located? In the periphery of CNS?
    Schwann cells are nerve cells which are myelinated (enveloped by glia cell) and are located in the periphery
  • What can be concluded out of the fact that the axons of interneurons are short?
    Interneurons only participate in the local aspects of the circuit
  • 1.7 Cellular Diversity in the Nervous System

  • What is the Nissl method?
    A method of staining the nervous system (blue) such stains demonstrate that the size, density and distriution of the total population of nerve cells is not uniform from region to region.
  • What can be observed with antibody stains?
    Antibody stains used on tissue can recognize specific proteins such as synapses and dendrites
  • 1.8 Neural Circuits

  • What is neuropil?
    A synaptic dense area with relatively a low number of cell bodies
  • What is the receptive field?
    A region of space in which the presence of a stimulus will alter the firing of that neuron. If the receptive field is small, easy discrimination is possible. If a neuron has a large receptive field, the neuron can not discriminate 2 different stimuli in that receptive field
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Laatst toegevoegde flashcards

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From what layer does the neural tube arise?
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The notochord
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Ectoderm, endoderm and mesoderm
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study image
Give the sequence of events involved in transmission at a chemical synapse.
1. Action Potential invades presynaptic terminal
2. Depolarization causes voltage-gated Ca2+ channels to open.
3. Rapid influx of Ca2+ into the cell
4. Ca2+ causes synaptic vesicles to fuse with the presynaptic membrane
5. Neurotransmitter is released into synaptic cleft via exocytosis.
6. Neurotransmitter binds to specific receptors in postsynaptic membrane.
7. Opening (or closing) of ion channels. So ions can diffuse
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What is stereognosis?
Just by manipulating an object with ours hands, we are able to identify this object.
What is a dermatome?
The territory innervated by each spinal nerve with respect to cutaneus sensation.