Medical Imaging and Physiology Quiz
37 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which type of decay involves the emission of high-energy photons?

  • Beta decay
  • Neutron decay
  • Gamma decay (Correct) (correct)
  • Alpha decay

    • In which part of the nervous system does signal compression not occur?

  • Motor Neurons
  • Peripheral Nervous System
  • CNS (Correct) (correct)
  • Sensory Neurons

    • What does signal adaptation refer to?

  • The receptor adjusting to a continuous stimulus by reducing sensitivity (Correct) (correct)
  • Conversion of a signal from one form to another
  • The decay of a signal over distance
  • The process of amplifying a weak signal

    • Where are alpha particles primarily used?

    <p>Therapeutics (Correct)</p> Signup and view all the answers

    What is the primary function of the leg abductor muscle?

    <p>Stabilize the body during rotation in the hip joint</p> Signup and view all the answers

    Which molecule is an example of a radioactive isotope?

    <p>Technetium-99m</p> Signup and view all the answers

    What does the Na/K ATPase pump primarily do?

    <p>Maintain cellular hydration by pumping sodium out and potassium into the cell</p> Signup and view all the answers

    What does an electrocardiogram (EKG) primarily contain information about?

    <p>The electrical activity of the heart</p> Signup and view all the answers

    What causes turbulence in blood flow?

    <p>Higher pressure</p> Signup and view all the answers

    What are stereocilia in the inner ear primarily involved in?

    <p>Balance</p> Signup and view all the answers

    What does MRI stand for?

    <p>Magnetic Resonance Imaging</p> Signup and view all the answers

    What is the primary function of facilitated diffusion?

    <p>To transport molecules across membranes without requiring energy</p> Signup and view all the answers

    What does gamma radiation alter as it passes through the body?

    <p>Nuclei of cells</p> Signup and view all the answers

    What does an ammeter measure?

    <p>Electrical current flowing through a circuit</p> Signup and view all the answers

    What is the primary cause of radioactivity?

    <p>Nuclear instability</p> Signup and view all the answers

    What is the function of a tracer in Positron Emission Tomography (PET) imaging?

    <p>To track specific molecules or substances</p> Signup and view all the answers

    What is the principle underlying X-ray imaging?

    <p>Ionizing radiation</p> Signup and view all the answers

    What does MRI stand for?

    <p>Magnetic Resonance Imaging</p> Signup and view all the answers

    In which medical application is the Doppler effect primarily used?

    <p>Measuring blood flow</p> Signup and view all the answers

    What is the unit of resistance?

    <p>Ohm</p> Signup and view all the answers

    What is the primary function of Doppler effect in medicine?

    <p>Measuring blood flow</p> Signup and view all the answers

    What contributes most to the resting membrane potential?

    <p>Potassium channels</p> Signup and view all the answers

    What does an ammeter measure?

    <p>Current</p> Signup and view all the answers

    What is the primary use of beta particles in medicine?

    <p>Diagnostic imaging</p> Signup and view all the answers

    Which radiation is the hardest to absorb?

    <p>Gamma rays</p> Signup and view all the answers

    What is the primary function of the retina?

    <p>Detecting light and initiating visual signals</p> Signup and view all the answers

    What is the typical threshold of hearing?

    <p>2-3 kHz</p> Signup and view all the answers

    What do myelinated fibers primarily contribute to?

    <p>Fast conduction of information</p> Signup and view all the answers

    What primarily affects the lateral resolution in ultrasound?

    <p>Width of the ultrasound beam</p> Signup and view all the answers

    What primarily affects the apparent blood viscosity?

    <p>Diameter of blood vessels, plasma viscosity, and haematocrit value</p> Signup and view all the answers

    What does Poiseuille’s law primarily describe?

    <p>$Q = \frac{\text{Change in pressure} \times \text{pi} \times r^4},{8 \times \text{viscosity} \times \text{length}}$</p> Signup and view all the answers

    What are stereocilia in the inner ear primarily involved in?

    <p>Balance</p> Signup and view all the answers

    What property affects the resolution of CT scans compared to MRI?

    <p>Better resolution than MRI</p> Signup and view all the answers

    What does contraction of ciliary muscles primarily affect?

    <p>Shape of the lens</p> Signup and view all the answers

    What is the primary function of radioimmunoassay (RIA)?

    <p>Measuring presence and concentration of specific substances in a sample</p> Signup and view all the answers

    What unit is used for exposure dose?

    <p>Sievert</p> Signup and view all the answers

    What does voltage-gated Na+ channels primarily respond to?

    <p>Membrane depolarization</p> Signup and view all the answers

    Study Notes

    • Mb-99 molibden is an example of a molecule.

    • The leg abductor muscle's primary function is to stabilize the body during rotation in the hip joint.

    • A cyst is a body mass filled with fluid, anechoic in nature.

    • Technetium-99m does not have the property of being expensive.

    • The Na/K ATPase pump is responsible for maintaining cellular hydration by pumping sodium out and potassium into the cell.

    • An electrocardiogram (EKG) contains information about the electrical activity of the heart, specifically Eindhoven triangles.

    • The main cause of turbulence in blood flow is higher pressure.

    • When standing on one leg, there is a 7x increase in load on the femur head.

    • Stereocilia in the inner ear are involved in balance.

    • MRI stands for Magnetic Resonance Imaging.

    • Gamma rays are the hardest radiation to absorb.

    • An electrocardiogram (EKG) contains information about the electrical activity of the heart, specifically Eindhoven triangles.

    • The primary function of the Na/K ATPase pump is to pump sodium out and potassium into the cell.

    • Technetium-99m is not radioactive or expensive, it is used in medical diagnostics and has a half-life of 6 hours.

    • The leg abductor muscle's primary function is to stabilize the body during rotation in the hip joint.

    • Fluoroscopy layers primarily provide dynamic imaging.

    • Spherical aberration is caused by imperfect curvature of lenses.

    • If there is a threefold increase in the lumen of a vessel, the velocity of the blood flow increases threefold.

    • The Nernst equation calculates the membrane potential.

    • The resistance of the renal artery is typically 0.6 ohms.

    • When gamma radiation goes through the body, it alters the nuclei of cells.

    • The lumbosacral angle is typically 40 degrees.

    • Facilitated diffusion is a process that does not require energy and depends on carrier proteins.

    • Technetium-99 is generated from molibden and not from uranium, alpha decay, or chemical synthesis.

    • The main function of the leg abductor muscle is to stabilize the body during rotation in the hip joint.

    • A cyst is primarily characterized by being a body mass filled with fluid, anechoic in nature.

    • The threshold of hearing is typically between 2-3 kHz.

    • Turbulence is more likely to occur in blood flow at higher Reynolds numbers.

    • X-rays have larger energy and lower penetration than gamma rays.

    • The osmotic coefficient of albumin is typically higher than 1.5.

    • The contraction of ciliary muscles affects the shape of the lens.

    • The purpose of the ear drum is to transmit sound waves to the inner ear.

    • Sensory system functions include: detection (sight, touch, taste, smell, hearing), sound amplification, balance, and filtering frequencies.

    • Intensity of X-rays increases as tube voltage increases.

    • Threshold of hearing is typically between 2-3 kHz.

    • Ultrasound crystals resonating result in increased resolution.

    • CT scans have better resolution than MRI.

    • Lateral resolution in ultrasound is determined by the width of the ultrasound beam.

    • Stereocilia in the inner ear are involved in balance.

    • Osmotic coefficient of albumin is typically higher than 1.5.

    • Contraction of ciliary muscles affects the shape of the lens.

    • Retina is the part of the eye that is light sensitive.

    • Technetium-99m does not have the property of being expensive.

    • Serum tests are run to determine electrolyte balance, hormone levels, and other substances.

    • Plasma primarily consists of proteins, electrolytes, antibodies, antigens, and hormones.

    • Multiple myeloma is a cancer of bone marrow and malignant plasma cells.

    • Vitamin C is effective in treating iron deficiency.

    • There are two types of insulin: dependent and non-dependent.

    • The ear differentiates frequencies using different wavelengths and intervals.

    • Myelinated fibers conduct information fast.

    • Radioimmunoassay (RIA) is used to measure the presence and concentration of specific substances in a sample.

    • Gamma rays are the hardest radiation to absorb.

    • The unit for exposure dose is sievert.

    • Vitamin K is important for blood clotting, but not for maintaining the membrane potential of muscle and nerve fibers.

    • In obstructive jaundice, the skin appears yellow due to increased bilirubin in the blood.

    • During walking, the hip performs an unloading motion.

    • Poiseuille’s law describes the flow resistance of each vessel.

    • Fluid flow becomes turbulent when the Reynolds number exceeds the critical value.

    • Apparent blood viscosity is influenced by diameter of blood vessels, plasma viscosity, and haematocrit value.

    • Diastole duration decreases as heart rate increases.

    • Water molecules in liquid water interact via van der Waals forces.

    • A single neuron can have hundreds to thousands of synapses.

    • Voltage-gated Na+ channels open when the membrane is depolarized.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of medical imaging techniques and physiological principles with this quiz. From MRI to the Doppler effect, and potassium channels, this quiz covers a range of topics related to medical imaging and physiology.

    More Like This

    Physiology: X-rays Definition
    38 questions

    Physiology: X-rays Definition

    IllustriousPlumTree avatar
    IllustriousPlumTree
    Audiogram and Applications in Medicine
    10 questions

    Audiogram and Applications in Medicine

    IllustriousPlumTree avatar
    IllustriousPlumTree
    Physiology Concepts and Techniques
    24 questions

    Physiology Concepts and Techniques

    UndisputedTulip avatar
    UndisputedTulip
    BM402: Engineering in Medicine Overview
    24 questions

    BM402: Engineering in Medicine Overview

    EthicalIsland2905 avatar
    EthicalIsland2905
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser