Anatomy and Physiology

    Chemistry for Physiology
    If the concentration of a solution is 5%, which of the following is true?
    5% = 5% = 5 per hundred = 5 g per 100 ml of solution.
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    Chemistry for Physiology
    To which of the following class of biological compounds do all enzymes belong?
    All enzymes are proteins.
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    Endocrine System
    Which cells of the thyroid gland produce thyroglobulin (thyroid hormone)?
    Follicular cells produce thyroglobulin which is stored within the follicles of thyroid tissue.
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    Electricity
    What could be a correct definition of macro-electrocution? “That phenomenon which results from a prolonged macro-shock produced by:
    Macro-electrocution refers to electrocution by a relatively large current that is applied to the skin surface.
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    Cells and Tissues
    Which of the tissue types below consists of a single layer of cells?
    The word “simple” indicates a single layer of cells. Stratified means several layers (or strata) of cells.
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    Nervous System
    The central sulcus of the brain lies between which two lobes?
    The central sulcus separates the frontal lobe from the left and right parietal lobes.
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    Chemistry for Physiology
    Which of the following statements about atoms is FALSE?
    For the elements with smaller atoms, usually this is true. For heavier elements it is not.
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    Chemistry for Physiology
    The formula for oleic acid (a fatty acid) may be written as: CH3(CH2)7CH=CH(CH2)7CO2H. How many atoms of each type of element are there in a molecule of oleic acid?
    The number of atoms written as a subscript immediately follows the symbol for the element; hence there are 2 atoms of oxygen (O). The number 7 outside the parentheses means that there are 7 lots of the atoms that are inside the parentheses. Hence, it is 14 + 14 H inside the parentheses, with a further 6 H outside them, which totals 34 H.
    Author: rikazzz Comment
    Gastrointestinal System
    Which three sections do the small intestine consists of?
    Caecum is part of the LI; antrum is part of the stomach; rectum is the last part of the colon.
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    Cardiovascular System
    From which type of capillary is it easiest for a white blood cell to leave the blood (to extravasate) in order to move into the tissues?
    Sinusoidal capillaries have gaps between their endothelial cells large enough for cells to pass through. In addition, their basement membrane, being incomplete, presents a lower barrier to extravasation.
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