Anatomy and Physiology

    Cardiovascular System
    What feature distinguishes pacemaker cardiac cells from other cardiac cells? Pacemaker cardiac cells:
    Pacemaker cardiac cells are self-rhythmic. They will contract in the absence of stimulation from the nervous system. External stimulation will make them contract at a faster (or slower) rate.
    Author: rikazzz Comment
    Chemistry for Physiology
    To what condition does the term “hypokalaemia” refer to?
    Hypo- refers to too little and kalium is the Latin word for potassium.
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    Gastrointestinal System
    Which one of the following is a function of the liver?
    Plasma proteins (albumins, globulins and fibrinogen) are produced in the liver.
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    Skeleton and Joints
    Which of the following is NOT a bone of the axial skeleton?
    The “deltoid” bone does not exist. Choice D, the hyoid does not articulate with any bone, but being in the neck is considered part of the axial skeleton.
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    Cells and Tissues
    In which phase of mitosis would chromosomes line up at the centre of the spindle?
    Remember the metaphase plate occupies the middle of the cell.
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    The Physics of Waves: Light Waves, Sound Waves and Ultrasound
    The energy carried by a photon of electromagnetic radiation is proportional to its:
    When referring to the energy in a photon (a packet) of radiation, the equation E = h × f relates the energy E of a photon to its frequency, f.
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    Nervous System
    Which neuroglia do NOT occur in the central nervous system?
    Schwann cells produce the myelin sheath of peripheral neurons. Oligodendrocytes produce the myelin sheath for central neurons.
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    Endocrine System
    Which hormone has the element iodine as part of its molecule?
    Thyroxine or thyroid hormone contains iodine.
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    Electricity
    If an ion has a positive charge, then what do we know about it? That it:
    An ion will have a positive charge when it has lost one or more electrons. Hence it will have more protons in its nucleus than electrons in the orbitals.
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    Cells and Tissues
    Which of the following is NOT a cell found in connective tissue?
    Keratinocytes are in the epidermis which is epithelial tissue. The other cell types occur in fat, cartilage and bone.
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