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2013-01-13 09:00:08
Biological psychology neuron neurons action potential

Biological psychology Chapter 2: Neurons
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  1. Relatively Large glia, Star-shaped
    A) Astrocyte
    B) Micro Glia
    C) Oligodendrocyte
    A) Astrocyte
    (this multiple choice question has been scrambled)
  2. Principle stating that the size, amplitude, and velocity of the action potential are independent of the intensity of the stimulus that initiated it
    All-or-none law
  3. Swelling of the soma, the point where the axon begins
    Axon hillock
    network of thin tubes within a cell that transports newly synthesized proteins to other locations
    A) Endoplasmic reticulum
    B) Mitochondria
    C) Golgi bodies
    A) Endoplasmic reticulum
    (this multiple choice question has been scrambled)
  5. The main fuel of vertebrate neurons
  6. The main difference between Interneuron/Intrustic Neuron and Local Neuron?
    A) Local neuron has none, or small axon
    B) Local Neurons are only located in the CNS
    C) Size
    A) Local neuron has none, or small axon
    (this multiple choice question has been scrambled)
  7. This drug that attaches to the sodium channels of the membrane, preventing sodium ions from entering and thereby blocking action potentials
    A) Cannabis
    B) Cocaine
    C) Local anesthetic
    D) Morphine
    C) Local anesthetic
    (this multiple choice question has been scrambled)
  8. Myelin is mainly made of?
    Insulting material composed of Fats and Protein
  9. Nucleus has 2 meanings, which ones?
    • structure within a cell that contains the chromosomes; also a cluster of neuron cell bodies within the CNS
  10. Tansmission of an action potential down an axon is termed?
    A) Propagation of an action potential
    B) Mediated potential
    C) Saltatory conduction
    D) Graded potential
    A) Propagation of an action potential
    (this multiple choice question has been scrambled)
  11. This specialized type of Neuron is found in the CNS, specifically, the Brain, including cerebral cortex, the hippocampus, and in the amygdala.
    One of the main structural features of this neuron is the special shape of the soma, or cell body, after which the neuron is named. Other key structural features of this cell are a single axon, a large apical dendrite, multiple basal dendrites, and the presence of dendritic spines.
    Pyrimidal Cell
  12. Name these neurons
    • A) Local/Intristic/Interneuron
    • B) Sensory Neuron
    • C) Motor Neuron
    • D) Pyramidal Neuron
  13. The blood-brain barrier requires certain chemicals to be Actively transported.
    a) What is transporting the chemicals?
    b) What is the fuel used to transport this?
    • a) Protein-mediated pumps
    • b) Glucose
  14. Metabolism in the neuron is performed mainly by which structure
  15. Myelin sheath gaps are also called...?
    Nodes of Ranvier
  16. glia cells that surround and insulate certain axons in the vertebrate brain and spinal cord
  17. type of glia cells that guides the migration of neurons and the growth of their axons and dendrites during embryological development
    A) Schwann cells
    B) Radial Glia
    C) Radical Glia
    D) Microglia
    B) Radial Glia
    (this multiple choice question has been scrambled)
  18. Term for the time when potassium gates remain open wider than usual, requiring a stronger than usual stimulus to initiate an action potential?
    Relative Refractory Period
    jumping of action potentials from one node to another by the flow of positive ions
    Saltatory conduction
  20. N+ channels are only to be found where in a myelinated axon
    Gaps in between the sheath, aka Nodes of Ranvier
  21. glia cell that surrounds and insulates certain axons in the body of vertebrate are named
    a) for PNS?
    b) for CSN?
    • a) Oligodendrocytes
    • b) Schwann cells
  22. What chemical is necessary for the metabolism of glucose?
    Thiamine/Vit B1