Anatomy and Physiology

    Muscles
    Which of the following is NOT a common intramuscular injection site?
    The gluteus maximus is avoided so that the sciatic nerve is not pierced by the needle.
    Author: rikazzz Comment
    Reproductive System
    What effect does luteinising hormone have?
    Luteinising hormone stimulates ovulation and the formation of the corpus luteum.
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    Chemistry for Physiology
    Which of the following statements about the role of the kidneys or lungs in the maintenance of acid-base balance within the body is FALSE?
    The lungs with each breath are able to excrete acid, by exhaling CO2. So the lungs are able to respond more rapidly than the kidneys.
    Author: rikazzz Comment
    Cells and Tissues
    Facilitated diffusion differs from active transport because facilitated diffusion:
    Diffusion always refers to movement from high to low concentration (without energy expenditure). Facilitated refers to the assistance provided by a transport molecule that is designed for the purpose.
    Author: rikazzz Comment
    Cells and Tissues
    Choose the membrane that is NOT a serous membrane.
    The lamina propria is a “basement membrane” attached to epithelial tissue. The others are serous membranes.
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    Respiratory System
    To which of the following does the term “respiration” NOT apply?
    Carbon dioxide reacts with water to form carbonic acid which disassociates to form bicarbonate ions. But this is not referred to as respiration.
    Author: rikazzz Comment
    Muscles
    Which of the following muscles is NOT a flexor of the knee?
    The rectus femoris is on the anterior of the thigh and extends to the knee. The other three together constitute the “hamstrings” and flex the knee.
    Author: rikazzz Comment
    Nervous System
    What may be said of the parasympathetic division of the autonomic nervous system?
    The vagus nerve (CN X) carries about 90% of parasympathetic impulses. Choices A and D are true of the sympathetic division.
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    Reproductive System
    Which organ does NOT add a secretion to semen?
    There is no addition to the semen as it passes through the penis.
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    Endocrine System
    How do calcitonin or parathyroid hormone controls blood calcium levels?
    PTH acts to increase blood calcium levels. Hence less is required when blood calcium level is high.
    Author: rikazzz Comment