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Title: Respiratory System Notes L1
Description: These are my digital notes for the Respiratory System (Part One) which focus on breathing volume.
Description: These are my digital notes for the Respiratory System (Part One) which focus on breathing volume.
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L1: breathing
in this chapter you will learn about the structure of the respiratory system, its main
components and how our bodies breathing system works
🗝️
keywords
alveoli - many tiny air sacs located in the lungs which are the specific location for gas
exchange (will be covered later)
intercostal muscles - muscle groups that are in between the ribs and move the chest wall
bronchioles - minor air passages that are divided from bronchus, gas travels through here
bronchus - major air passages that divide from the trachea
trachea - the main air passage also known as the windpipe
lungs - organs located in the chest which is the vague location of gas exchange
ribs - curved bones located in the chest which protect internal organs
diaphragm - a layer of muscle and connective tissue which can contract and expand
inhalation - a decrease in pressure inside our lungs which allows air in
exhalation - a increase in pressure inside our lungs which pushes air out
tidal volume (tv)- the normal amount you breathe in and out - between 0
...
5l
inspiratory reserve volume (irv) - the extra that you can inhale after normal inhalation about 2
...
5l
expiratory reserve volume (erv) - extra amount that you can exhale after normal exhalation
- about 1
...
Gases travel through her in a specific order: trachea > bronchus > bronchiole >
alveoli
...
info on pressure and breathing
L1: breathing
2
The diagram above shows how the diaphragm moves depending on exhalation or inhalation
...
Exhalation makes the diaphragm relax, which increases the pressure
and creates less space for air
...
When inhalation
happens, the ribcage expands and rib muscles contract
...
Go ahead and try this out for yourself
...
You should feel your ribcage move
...
diaphragm rises/relaxes, ribs relax = exhalation
...
Volume of the lungs are measured in liters ( l ) and ,as you can see, the
average set of lungs hold 6l of air
...
Memorizing lots of terms may sound tricky, however you will be given ways to
memorize them later, so don’t worry!
Try to answer the table below on a piece of paper
answers will be given at the bottom of/last page
...
Let's break down the information and create some memory aids:
1
...
L1: breathing
4
Visualize these as "airy volleys" where the exchange of oxygen and carbon dioxide
takes place
...
Intercostal Muscles: Muscles in the ribcage that push air out of the lungs
...
3
...
Think of "bronchioles" as tiny bronco riders heading towards the alveoli
...
Bronchus: Major airways spreading from the lungs
Title: Respiratory System Notes L1
Description: These are my digital notes for the Respiratory System (Part One) which focus on breathing volume.
Description: These are my digital notes for the Respiratory System (Part One) which focus on breathing volume.