Environmental influences

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36 Questions - Developed by: V - Developed on: - 1.342 taken

  • 1
    - in standing person gravity induces lower values of blood pressure in the arteries of legs than there are in the head arteries
     True
     False
  • 2
    - an air embolism can occur due to negative „suction“ pressure (lower than the atmospheric pressure) within the big veins of the head in person keeping the upright or sitting positions
     True
     False
  • 3
    - a positive longitudinal overloading can cause „the white blindness“ due to a drain of blood from the retinal (choroid) vessels
     True
     False
  • 4
    - a negative longitudinal overloading can not induce any problems because the brain is
    well supplied by blood
     True
     False
  • 5
    - the human body withstands a longitudinal overloading better than the transverse (chest to back) one
     True
     False
  • 6
    - no gravity (weightlessness state) induces decalcification of bones, reduction of muscle
    matter, and dehydration
     True
     False
  • 7
    - at high altitude (above 3,000 m) a low partial pressure of oxygen in the air results in
    symptoms of hypoxia
     True
     False
  • 8
    - hypoxia is a main reason for symptoms of the “mountain“ disease
     True
     False
  • 9
    - symptoms of both the acute and chronic hypoxia are the same
     True
     False
  • 10
    - symptoms of a chronic hypoxia are lung oedema, brain oedema, collapse, and unconsciousness
     True
     False
  • 11
    - during an acclimatization to hypoxia a release of the erythropoetin from the kidneys induces a rise of red blood cells count
     True
     False
  • 12
    - a „caisson“ disease (decompression disease) results from a rapid release of gas bubbles (particularly nitrogen), which were dissolved in body under the high pressure
     True
     False
  • 13
    - a hyperbaric chamber can be used in a treatment of the “caisson“ disease
     True
     False
  • 14
    - a hyperbaric chamber can be used in treatment of carbon monoxide poisoning
     True
     False
  • 15
    - an ultraviolet light with wavelengths under 280 nm induces mainly erythema
     True
     False
  • 16
    - an ultraviolet light with wavelengths 280-315 nm induces mainly destruction of biomolecules
     True
     False
  • 17
    - an ultraviolet light with a wavelength above 315 nm (UV-A) induces mainly a pigmentation
     True
     False
  • 18
    - an oxygen in the atmosphere completely absorbs the ultraviolet light
     True
     False
  • 19
    - proteins can intensively absorb an ultraviolet light
     True
     False
  • 20
    - nucleic acids only weakly absorb an ultraviolet light
     True
     False
  • 21
    - an ultraviolet light does not penetrate into the water at all
     True
     False
  • 22
    - an ultraviolet light damages mostly the retina of an eye
     True
     False
  • 23
    - a skin phototype means that the skin responds specifically and typically to the exposure of an ultraviolet light by erythema
     True
     False
  • 24
    - a malignant melanoma is a cancer growing mostly due to the overexposure of infrared light
     True
     False
  • 25
    - even a high intensity of radio-waving emission can not damage the body
     True
     False
  • 26
    - even a high intensity of an infrared emission can not cause the health troubles
     True
     False
  • 27
    - an amount of absorbed light (absorbed energy) in the substance depends on the light wavelength
     True
     False
  • 28
    - an amount of absorbed light (absorbed energy) in the substance depends on the type of absorption material
     True
     False
  • 29
    - an amount of absorbed light (absorbed energy) in the substance depends on the amount (intensity) of falling (incoming) light
     True
     False
  • 30
    - an amount of absorbed light (absorbed energy) in the substance depends on the duration of exposure
     True
     False
  • 31
    - an amount of light (intensity of light) passing the medium decreases exponentially with the thickness of the medium
     True
     False
  • 32
    - a concentration of dissolved substances is measured by spectrophotometer at minimum absorption
     True
     False
  • 33
    - during the measurement of substance concentration by spectrophotometer the intensity of transmitting light increases with an increase of the substance concentration
     True
     False
  • 34
    -(2015) Overloading more than 5g is not dangerous already
     True
     False
  • 35
    -(2015) during acclimatization to chronic (prolonged) hypoxia a release of Erytopoetin from Kidney induces higher production of blood cells
     True
     False
  • 36
    True
     True
     False

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