Anatomy and Physiology

    Chemistry for Physiology
    The diffusion of water molecules across a cell membrane from the side where the solution concentration is more dilute to the side where it is greater is known as which of the following?
    This is a definition of osmosis.
    Gastrointestinal System
    What are the end-products of carbohydrate digestion?
    Glucose is one example of a monosaccharide, but there are others.
    Skeleton and Joints
    On what bone does the acetabulum occur?
    The acetabulum is the “socket” into which fits the ball of the femur.
    Chemistry for Physiology
    What may be stated about a chemical bond between atoms that is polar? They occur:
    Choice B is wrong if the two atoms are the same, e.g. if both are oxygen. Choice D is wrong as it implies a non-polar bond.
    Respiratory System
    Which structures are called bronchioles?
    Terminal bronchioles supply air to a lobule. Respiratory bronchioles supply air to an alveolar sac. Secondary bronchi diverge from primary bronchi.
    Electricity
    What are the deflections seen on an electrocardiogram trace due to?
    The P wave is due to the depolarisation of the atria, the QRS due to the depolarisation of the ventricles and the T due to the repolarisation of the ventricles.
    Chemistry for Physiology
    Choose the INCORRECT statement about buffer solutions.
    The pH of a buffer does change, albeit very slightly, on addition of acid or base.
    Cardiovascular System
    What is “systolic pressure”?
    Systole means “contraction” in Greek. So systolic pressure is the pressure produced by the contraction of the left ventricle. Choice C refers to mean arterial pressure, which is less than systolic pressure.
    Gastrointestinal System
    What is the process in the digestion of food molecules that produces their monomers called?
    Digestion is the process of making smaller molecules from polymers by the addition of H or OH from water. It is called hydrolysis.
    Ionising Radiation
    Which anatomical plane is usually displayed in a CT scan?
    A cross-section or transverse slice is the usual image viewed.