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Respiratory System

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by

Jennifer Sweet

on 3 November 2015

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Transcript of Respiratory System

What is the purpose of breathing?
All of your body cells need

Respiratory System
The organs of your respiratory system bring oxygen into your body for your

LUNGS
The main organ of the respiratory system are the
Breathe In.
Breathe Out.
To help you breathe, you need the help from a ______________________ called the
diaphragm.

Diaphragm.
At rest, the diaphragm is in an upright position.

When it is pulled down, or when the muscle contracts, the lungs expand.

This causes air (oxygen) to go into the lungs.


The Diaphragm.
Again, when the diaphragm relaxes, air is pushed back out of the lungs.
Path of Oxygen
1. Nose or Mouth
2. Down Windpipe
Called a Trachea
3. Into the bronchioles
4. Into the air sacs
5. Into the bloodstream
6. Distributed throughout body by RBCs
2. Trachea
The trachea, also known as the is the tube where oxygen then travels further into the body. It is also lined with cilia.

Remember, the prevents food from going down the trachea!

The is located at the entrance to the trachea.
What happens during breathing?
Inhalation:
1. Nose & Mouth
Oxygen first enters body via nose & mouth

* Small nose hairs, called prevent dust and other irritants from entering the body

3. Bronchial & Bronchiole Tubes
The trachea splits into the tubes.

These tubes lead into the left and right lungs.

They continue to further and further.


4. Air Sacs
The air sacs, also called , are lined with

They fill with oxygen during

The oxygen travels through the air sacs and capillaries to reach blood cells in the capillaries.
throat (pharynx)
voice box (larynx)
windpipe (trachea)
bronchial tube
lung cover (pleura)
diaphragm
trachea
broncial tube
left lung
right lung
pleura
capillaries
alveoli
bronchiole
Without oxygen, your body cells cannot produce
oxygen.
energy.
They also get rid of carbon dioxide, a , given off by the cells.
cells
waste
Exhalation:
Taking oxygen
into
the body
Releasing carbon dioxide
out
of the body
It is located below the lungs.
muscle
contracted diaphragm
relaxed diaphragm
lung
carbon dioxide
spine
oxygen
breastbone
INHALE
EXHALE
You can not measure your own blood pressure...but... you can measure your heart rate (per minute)!
Pulse: a rhythmical throbbing of the arteries as blood is propelled through them, typically as felt in the wrists or neck.
First, find which pulse is easier for you to locate.

For example,
if you count 25 beats, 25 x 4 = 100 beats per minute.
Take this number and multiply by 4 to find your heart rate in beats per minute.
Second, Count the number of beats (pulses) for 15 seconds.
Finding Pulse / Heart Rate
Normal Heart Rate
60-100 beats/min
AT REST!
Breathing Rate
12 - 16 breaths/per min
At rest, a breathing rate can be...
The best way to measure breathing rate is to count breaths (chest rising) in a full minute!
exit ticket:

c. BREATHING RATE CHECKER
b. TIMER & RECORDER
a. RUNNER & PULSE CHECKER
1. Form a group of 3
2. Assign the following roles:
72*F
Radial Pulse:
Carotid Pulse:
Heart & Breathing Rate Lab
cilia
windpipe
epiglottis
voicebox
bronchial
branch apart
alveoli
capillaries
inhalation
red
Full transcript