BIOLOGICAL PSY. chp 2

  1. Relatively Large glia, Star-shaped


    B)  Astrocyte
  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
  4.  
    network of thin tubes within a cell that transports newly synthesized proteins to other locations


    A)  Endoplasmic reticulum
  5. The main fuel of vertebrate neurons
    Glucose
  6. The main difference between Interneuron/Intrustic Neuron and Local Neuron?


    C) Local neuron has none, or small axon
  7. This drug that attaches to the sodium channels of the membrane, preventing sodium ions from entering and thereby blocking action potentials



    B) Local anesthetic
  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
  11. Image Upload 1This 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. Image Upload 2Name 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
    Mitochondrion
  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
    Oligodendrocytes
  17. type of glia cells that guides the migration of neurons and the growth of their axons and dendrites during embryological development



    C) Radial Glia
  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
  19.  
    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
Author
alkemisten3
ID
192506
Card Set
BIOLOGICAL PSY. chp 2
Description
Biological psychology Chapter 2: Neurons
Updated