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Introduction – Control & Regulation of Breathing

by Thad Wilson, PhD

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    00:00 This lecture is about the control of regulation of breathing.

    00:04 We have a number of important learning goals to go through.

    00:07 The first is to identify afferent inputs to the pulmonary system and the respiratory control centers of the brain stem.

    00:14 In this lecture, we will also discuss how the mechanisms by which peripheral and central chemoreceptors sense changes in the various blood gases.

    00:24 And finally, we’ll be able to predict the ventilatory response to a given change in our arterial blood gas.

    00:32 Okay, let’s get started.

    00:34 What are the different parameters that we can control to be able to alter ventilation? We really only have two different things to modulate.

    00:43 The first is gonna be breathing frequency or how fast one breathes.

    00:47 The second will be the depth of breath such as the tidal volume.

    00:53 We have a number of different inputs that will go to the respiratory system.

    00:59 There are three main classifications; we’ll start off with chemoreceptors.

    01:03 They are both central chemoreceptors and peripheral chemoreceptors.

    01:09 There are receptors in the lungs and these will be responsive to things like lung stretch - and this is very important because if the lungs are overstretched, they are very fragile environments around the capillaries and the alveoli and they could stretch too much.

    01:29 There are also irritant receptors in the pulmonary system.

    01:33 There are specialize sensory fibers known as bronchial C-fibers as well as Juxta-capillary receptors.


    About the Lecture

    The lecture Introduction – Control & Regulation of Breathing by Thad Wilson, PhD is from the course Respiratory Physiology.


    Included Quiz Questions

    1. Juxta-capillary receptors.
    2. Bulboid corpuscle.
    3. Glomus cells.
    4. Pacinian corpuscle.
    5. Proprioceptors

    Author of lecture Introduction – Control & Regulation of Breathing

     Thad Wilson, PhD

    Thad Wilson, PhD


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