Anatomy and Physiology

    Cells and Tissues
    Which list below contains the four types of tissue?
    These are the four types. Extracellular fluid is not a tissue. Cartilage is a type of connective tissue.
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    Cardiovascular System
    Which of the following list of characteristics distinguishes a vein from an artery? A vein:
    A vein is not more elastic than an artery and carries blood at the same temperature as arteries, and flow in a vein is not pulsatile.
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    Nervous System
    Which part of the brain allows us to control skilled voluntary muscle movements?
    The precentral gyrus of the frontal lobe is the primary motor area. It controls voluntary movements of skeletal muscle.
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    Nervous System
    Which of the following substances CANNOT cross the blood-brain barrier?
    The BBB protects the brain from these substances. The substances in the other choices can all cross the BBB.
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    Cardiovascular System
    Which of the following statements about a person with blood group “A” is true? They have the:
    Blood group A is named for having the A antigen on the RBC.
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    Nervous System
    One of the functions of the prefrontal cortex is:
    The prefrontal cortex (of frontal lobe) performs abstract intellectual functions such as predicting the consequences of actions or events. Hence it helps us make conscious decisions.
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    Cardiovascular System
    A mother with blood type O negative has a 2-year-old child of blood type A positive and is pregnant with a second child who is B positive. What should have been done to ensure the health of the people involved?
    During delivery of the first child, foetal blood may enter the maternal system from the placenta. The mother will then produce agglutinins against rhesus antigen D. These can cross the placenta in a subsequent pregnancy and, if the second baby is Rh+, attack the foetal erythrocytes causing newborn haemolytic disease. The disorder can be easily prevented by administration of anti-D antibodies to the mother after the first delivery.
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    Integument
    Which list below contains functions that are NOT performed by the integumentary system?
    The skin does not produce vitamin E.
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    Nervous System
    What is the gap between the plasma membranes of a neuron that conducts an incoming signal and the cell that is going to receive the signal called?
    The gap between cells at a synapse is called a synaptic cleft. A neuromuscular junction is one type of synapse.
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    Ionising Radiation
    Which one of the following beams is the most penetrating?
    Penetrating ability of electromagnetic radiation increases as energy does.
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