Anatomy and Physiology

    Cardiovascular System
    What will be the result of an increase in sympathetic impulses along the vasomotor nerves?
    Vasomotor nerves should give the clue that vessels will be set in motion. An increase in impulses will result in vasoconstriction.
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    Gastrointestinal System
    A function of the LARGE intestine is to:
    The products of digestion have been absorbed before the remaining contents reach the LI. It absorbs additional water to make faeces a paste.
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    Chemistry for Physiology
    A healthy concentration of cholesterol in the blood is deemed to be less than 5.5 mmol/L. Which value below is greater than this value?
    6000 μmol/L is the same as 6.0 mmol/L. All other values are less than 5.5 mmol/L.
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    Muscles
    Which one of the following is not made of skeletal muscle?
    We are able to exercise conscious control over the other three muscles so they are skeletal muscle.
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    The Physics of Waves: Light Waves, Sound Waves and Ultrasound
    In the electromagnetic spectrum, the frequencies that we call visible light have values that lie above:
    Microwaves are low-frequency EM radiation, while UV radiation is relatively high. The frequencies of visible light are between the two.
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    Cells and Tissues
    In a strand of DNA, what is the combination of deoxyribose and phosphate and base known as?
    Three nucleotides form a codon, and many codons form a chromatid.
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    Body Temperature, Energy and Heat Loss
    How does the evaporation of sweat work as a heat loss mechanism?
    If the most energetic water molecules depart, the remainder will have a lower average energy than before the fastest ones evaporated. This means that the temperature of the remaining sweat will be lower.
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    Renal System
    In which structure does blood filtration in the kidney occur? The:
    Solutes are filtered out of the blood in the glomerular capillaries into the Bowman’s capsule. Together the two structures form the renal corpuscle.
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    Respiratory System
    Which membrane surrounds the lungs?
    The pleura surrounds each lung. There is an outer (parietal) layer and an inner layer, the visceral pleura.
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    Ionising Radiation
    Which statement about the differences between medical imaging using x-rays and a nuclear medicine scan using gamma rays is correct?
    X-rays that pass through the body without being absorbed by the body are used to produce an image of internal structure. In nuclear medicine, a radioactive material is incorporated into the body and travels to certain organs from where a gamma ray is emitted. If physiology is altered sufficiently to affect the way the radioactive material moves about the body, the resulting image provides information about how much alteration there has been.
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