Summary: Biologische Psychologie

Read the summary and the most important questions on Biologische psychologie

• 1 Week 1

• 1.1.1 From chemical elements to cell memebrane

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• Covalent bond (H2O)

  Sharing of electrons which forms molecules like water. The water molecule forms because oxygen has 6 electrons in shell 2 which can hold up to 8 and hydrogen has 1 electron in shell 1 which can go up to 2. 2 hydrogen and 1 oxygen atom share their electrons to fill their shells and be more stable.

• This is composed of a double layer of phosopholipids

  Cell membrane is composed of ...

• 1.1.2 Nerve cells

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• These are the tips of the axons and send signals to activate post synaptic cells

  Terminal buttons are the ...

• Retrograde axoplasmic transport

  The transport from the terminal buttons over the axon to the cell body (soma), with the protein Dynein.

• The blood cannot cross the blood brain barrier. How will the neurons receive glucose?

  The astrocytes make contact with blood vessels, take glucose out of the vessels and bring it to the soma. From there it can bring it to other neurons. Why doesn't it go directly to the neurons?

• 1.1.3 Bioelectricity

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• The average charge of an axon of a squid

  -90 mV polarized charge

• The two forces balancing the membrane potential

  Diffusion, electrostatics

• Action potentials cannot be gereated in myeline

  Myeline blocks Na+ from comming inside the cell

• 1.2.6 Neurotransmitters

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• Amino acids (neurotransmitters)

  Neurotransmitters with an amino grou and carboxyl group. Glutamate, Glycine and GABA are amino acid neurotransmitters

• 1.2.7 Psychopharmacology

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• An example of a drug that inactivates the synthetic enzym in a presynaptic cell, that blocks trypotophan hydroxylase.

  PCPA (fenclonine) inhibits serotonin synthesis