Anatomy and Physiology

    Nervous System
    What are the three meninges and two named “spaces” that surround the brain, in order from superficial to deep (outermost to innermost)?
    The dura mater, arachnoid mater and pia mater are the three meninges in order.
    Author: rikazzz Comment
    Nervous System
    Choose the correct statement about the eye:
    At the fovea the bipolar and ganglion cells don’t cover the cone cells so light can strike the cones directly. Bipolar, ganglion, rod and cone cells occur in the retina, not the choroid.
    Author: rikazzz Comment
    Chemistry for Physiology
    In which of the following sequences are particles listed in order of increasing size from left to right?
    An electron so far is immeasurably small, while a molecule must have at least two atoms, and the proton is a subatomic particle.
    Author: rikazzz Comment
    Cardiovascular System
    When a person is standing upright, what can be said about the arterial blood pressure in their feet?
    Due to the head of liquid above the feet contributing hydrostatic to the arterial pressure produced by the heart, arterial blood pressure in the feet will be greater than in the aorta.
    Author: rikazzz Comment
    The Physics of Waves: Light Waves, Sound Waves and Ultrasound
    In which of the following sequences are the types of electromagnetic radiation listed in correct order of energy with lowest energy first and highest energy last?
    Choice C is in reverse order; in choice A, UVC has higher frequency than UVA; it is possible for an X-ray frequency (e.g. from a hospital linear accelerator) to be higher than a particular gamma ray (e.g. from radioactive technetium).
    Author: rikazzz Comment
    Cardiovascular System
    Hypertension in adults may be defined as:
    Choice B would also be correct if reference was made to “resting”. The hypertensive value for children is less.
    Author: rikazzz Comment
    Ionising Radiation
    Which anatomical plane is usually displayed in a nuclear medicine bone scan (a scintigram)?
    A coronal view or a view of the anterior anatomical position is the most common.
    Author: rikazzz Comment
    Cardiovascular System
    The Frank-Starling law of the heart describes the proportional relationship between which of the following pairs?
    It states that the stroke volume of the heart increases in response to an increase in the volume of blood filling the heart. That is, stroke volume increases so that all the blood that enters the heart is pumped out.
    Author: rikazzz Comment
    Endocrine System
    What are the two parts of the pituitary gland known as?
    Anterior pituitary (epithelial tissue) and posterior pituitary (neural tissue).
    Author: rikazzz Comment
    Biomechanics
    A person (assumed to be healthy, awake and on their feet) is stable – that is, will not overbalance and fall – as long as:
    As long as the centre of gravity is above the base of support, there will be no unbalanced force tending to tip you over. Try standing with you back against the wall, and then bend over to touch your toes.
    Author: rikazzz Comment