Anatomy and Physiology

    Gastrointestinal System
    What molecules are the products of protein hydrolysis?
    Amino acids and small peptides (consisting of two or three amino acids) are hydrolysis products of proteins.
    Author: rikazzz Comment
    Measurement, Errors, Data and Unit Conversion
    In the Australian Metric System of measurement, what does the prefix “milli” stand for?
    Milli = one thousandth = 10−3.
    Author: rikazzz Comment
    Ionising Radiation
    Which of the following is NOT a principle used to set radiation safety standards?
    This is often not achievable.
    Author: rikazzz Comment
    Chemistry for Physiology
    Which of the following statements about an “osmole” is correct? An osmole is the:
    An osmole refers to the number of solute particles (ions or molecules) that exist in solution, after a substance has dissolved.
    Author: rikazzz Comment
    Renal System
    If a urine specific gravity was measured to be 1.03, an interpretation would be that:
    1.03 is at the upper limit of urine SG, indicating that the kidney is conserving water, so the person is dehydrated.
    Author: rikazzz Comment
    Nervous System
    What is the blood-brain barrier? An adaptation of the capillaries serving the brain that:
    The BBB is a selectively permeable barrier to many water-soluble particles that is incomplete at birth.
    Author: rikazzz Comment
    Nervous System
    Which of the following describes the motion that is produced when the patellar reflex is tested by tapping the patellar tendon?
    The patellar reflex affects the leg below the knee. The leg (anatomically between the knee and ankle) kicks out. This is extension not flexion.
    Author: rikazzz Comment
    Cardiovascular System
    A rise in arterial blood pressure stretches the vessel walls which contain baroreceptors. Which of the following responses does this produce? The baroreceptors send a:
    When a blood vessel wall is stretched, it stimulates baroreceptors to increase their stream of impulses to the vasomotor centre which inhibits it. This means the smooth muscle in blood vessel walls will relax and the vessel diameter will increase, and so BP is reduced.
    Author: rikazzz Comment
    Skeleton and Joints
    Which of the following is NOT a depression or cavity on a bone?
    A tuberosity is a rough area on the surface of a bone to which a muscle’s tendon attaches.
    Author: rikazzz Comment
    Muscles
    Which feature is shared by cardiac muscle cells and skeletal muscle cells?
    Both types of muscle cells are striated. Choices B, C and D are characteristics of cardiac muscle cells only.
    Author: rikazzz Comment