Normal Physiology Quiz for Foreign Students
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Questions and Answers

The aim of absorbing oxygen by the organism is:

  • The reducing of formation of CO2
  • Synthesis of proteins
  • The improvement of the efficiency of ATP resynthesis (correct)
  • The formation of oxyhemoglobin in erythrocytes (correct)
  • The reduction of heat elimination
  • The energy of macroergic bonds of ATP molecules is used for:

  • Synthesis of complex substances
  • All answers are correct (correct)
  • Active transport of substances
  • Mechanical work
  • What part of lungs containing alveoli participates in gas exchange with blood?

  • Dead space
  • Conductive zone
  • Transient zone
  • Respiratory zone (correct)
  • Choose the gas composition of inhaled air (%).

    <p>20.9 - O2, 0.03 - CO2</p> Signup and view all the answers

    Choose the gas composition of alveolar air (%).

    <p>16.0 - O2, 10.0 - CO2</p> Signup and view all the answers

    The permeability of membranes of alveoli and capillaries for gas characterizes the rate of:

    <p>Lung diffusion capacity</p> Signup and view all the answers

    The lungs of an adult are stretched:

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

    Negative pressure in the pleural gap is provided mainly by:

    <p>Elastic recoil force</p> Signup and view all the answers

    Inspiration is performed by contracting of:

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

    The change in volume of the thoracic cavity during a quiet breathing mainly occurs due to the contraction of:

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

    What act of breathing involves external intercostal muscles?

    <p>Quiet inspiration</p> Signup and view all the answers

    Respiratory muscles are:

    <p>Skeletal muscles</p> Signup and view all the answers

    During inspiration:

    <p>The pressure in lungs is less than the atmospheric pressure</p> Signup and view all the answers

    What factors form the expiration phase?

    <p>All the answers are correct</p> Signup and view all the answers

    The difference between the intrapulmonary and intrapleural pressures is called:

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

    If the transpulmonary pressure is equal to zero what will happen to lungs?

    <p>The lungs will be deflated</p> Signup and view all the answers

    Negative pressure in the pleural cavity caused by the fact that:

    <p>Lungs have the elastic recoil force</p> Signup and view all the answers

    What component does the anatomic dead space include?

    <p>Nose, mouth, larynx, trachea, bronchi, bronchioles</p> Signup and view all the answers

    The airways provide: (Find the incorrect answer)

    <p>Gas exchange</p> Signup and view all the answers

    The function of the surfactant is :

    <p>All the answers are correct</p> Signup and view all the answers

    What part of the alveolar air is renovated with each breath during a quiet breathing?

    <p>1/7</p> Signup and view all the answers

    The gas exchange occurs in the alveoli

    <p>Continuously during an inspiration and expiration</p> Signup and view all the answers

    The most reliable criterion of the effective ventilation is:

    <p>PaO2 and PaCO2</p> Signup and view all the answers

    The volume of air that a person can inhale and exhale at rest is called:

    <p>Tidal volume</p> Signup and view all the answers

    The value of tidal volume in healthy adults averages:

    <p>500ml</p> Signup and view all the answers

    The volume of air a person can inspire after a quiet inspiration is called:

    <p>Inspiratory reserve volume</p> Signup and view all the answers

    A person can inspire after a quiet inspiration:

    <p>Inspiratory reserve volume</p> Signup and view all the answers

    The value of inspiratory reserve volume in healthy adults is:

    <p>450 - 500ml</p> Signup and view all the answers

    The volume of air that a person can expire after a quiet expiration:

    <p>Expiratory reserve volume</p> Signup and view all the answers

    The value of the expiratory reserve volume in healthy adults is:

    <p>300 - 900ml</p> Signup and view all the answers

    After a maximal expiration in lung remains:

    <p>Functional residual capacity</p> Signup and view all the answers

    Residual volume is:

    <p>A volume of air remaining in lungs after a maximal expiration</p> Signup and view all the answers

    How to calculate a functional residual capacity?

    <p>Expiratory reserve volume + residual volume</p> Signup and view all the answers

    What is the volume of a functional residual capacity, if a tidal volume = 0,5 liter, expiratory reserve volume = 1,5 liters, residual volume - 1 liter, inspiratory reserve volume = 2 liters?

    <p>3 liters</p> Signup and view all the answers

    What is called a vital capacity:

    <p>The volume of air that can be maximally expired after a quiet inspiration</p> Signup and view all the answers

    VC consists of the following volumes:

    <p>Tidal volume + inspiratory reserve volume + residual volume</p> Signup and view all the answers

    The average volume of anatomic dead space of a healthy adult is about:

    <p>250 ml</p> Signup and view all the answers

    MV (minute ventilation) is calculated by the equation:

    <p>(tidal volume - volume of dead space) x breaths/min</p> Signup and view all the answers

    Choose a normal value of MV (minute ventilation):

    Signup and view all the answers

    The aim of absorbing of oxygen by organism is:

    <p>the formation of oxyhemoglobin in erythrocytes</p> Signup and view all the answers

    What organelles are the main consumers of O2 in cells:

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

    Choose the correct sequence of respiratory phases.

    <p>ventilation, gas exchange in lungs, transport of gases by blood, gas exchange in tissues, biological oxidation</p> Signup and view all the answers

    The lungs of adult are stretched ...

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

    Study Notes

    ### Document Details

    • Title: Tests on Normal Physiology for Foreign Students
    • Publisher: Orenburg State Medical University, Ministry of Health of Russia
    • Publication Year: 2017
    • Number of Pages: 19 pages + content pages
    • Intended Audience: Foreign Medical Students studying Normal Physiology

    ### Content Summary

    • This document is a study guide, specifically designed for foreign medical students studying Normal Physiology.
    • It contains a variety of multiple-choice questions, each covering different aspects of respiratory physiology, external respiration, fluid electrolyte balance, physiology of excretory and blood systems, cardiovascular physiology, Somatic and Autonomic Nervous Systems, endocrine system, regulation of metabolism, sensory systems, higher functions of nervous systems, and the physiology of blood.
    • The questions and content address various topics related to the normal functioning of the human body systems.
    • Answers with detailed explanations are included for each question.
    • The questions are organized per topic for easy navigation and understanding.
    • The guide also includes information about important tests used in the screening examination.

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    Description

    This quiz is designed for foreign medical students studying Normal Physiology. It features multiple-choice questions covering various topics such as respiratory physiology, fluid electrolyte balance, and the nervous system. Detailed explanations for each answer are included to enhance understanding of human body systems.

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