RESPIRATORY SYSTEM

How does it work?

Take in a big breath

Observe what happens when you breathe.

What movement did you notice? Which system is responsible for

movement?

Diaphragm

A dome shaped muscle beneath the lungs

Controls breathing

Contracts (pushes down) to expand chest cavity, which causes inhaling

Structure Function

What’s the difference?

Inhaling and exhaling of air

The process by which the body gets and uses oxygen and releases carbon dioxide and water

Breathing Respiration

What’s the difference?

Primary respiratory organs that filter oxygen out of the air that we breathe in

Spongy, saclike organs

Filter dissolved oxygen from water for aquatic animals like fish

Lungs Gills

Inhaling Airway

Nose – main passage way into the respiratory system

Pharynx – back of the throat, connects to larynx Larynx – part of the throat that contains the

vocal cords and guards the trachea Trachea – Windpipe. Tube that connects the

larynx to the lungs Bronchi (bronchus) – Trachea splits in two

branches, each one going to a lung Bronchioles – Each bronchus divides into many

smaller branches to all of the alveoli

How is a lung like a tree?

Draw a tree. What do you draw first? Then what? What do you add last? Turn your drawing upside

down…. resembles a lung

Alveoli

Tiny air sacs in the lungs Walls are one cell thick Sacs are covered with capillaries Oxygen is passed into the blood stream

to red blood cells Carbon Dioxide is passed from red blood

cells into the alveoli

Exhaling Airway

Reverse of Inhaling Diaphragm relaxes (pushes up) to make

chest cavity smaller Carbon dioxide leaves alveoli into

bronchioles (branches), through bronchi (trunk), up trachea (windpipe), through larynx, pharynx and exits out of the body out of the nose.

Building a Working Lung Model https://

www.msichicago.org/scrapbook/scrapbook_exhibits/bodyworlds2/educ_resources/BW2_Additional_Activities.pdf

Why does our body need oxygen? Cellular Respiration – Oxygen is used by

the cells in the body to release energy Cells use oxygen to release chemical

energy The byproducts of this process is carbon

dioxide and water.

Why Cardiovascular System is helpful to Respiratory System

Blood leaving the lungs is oxygen-rich.

Pulmonary veins are carrying oxygen-rich blood to the heart to be pumped to the body.

In capillaries surrounding every cell, red blood cells deliver the oxygen.

As the RBC’s get rid of the oxygen, they pick up the waste (carbon dioxide)

Veins carry the oxygen poor blood back to the heart where it is pumped to the lungs.

Pulmonary Arteries carry oxygen-poor blood to the lungs.

Carries and Delivers Oxygen

Picks up Waste

How is the AZ mail system like the cardiovascular & respiratory systems?

AZ Mail system Comparison

Incoming mail

Have you ever had a pen-pal? How do their letters get to you? What about if letters are coming from

out of state or out of the country? How do you get the letters? Once they get into AZ, how do the

letters make it to your house? http://viewpure.com/bB7dhE_TW9g

AZ Mail Comparison

RESPIRATORY/ CARDIOVASCULAR SYSTEMS FLOW MAP

How do these systems work together?

Your Assignment

Create a flow map that shows how the cardiovascular and respiratory systems work together.

Write in complete sentences and use correct punctuation.

The map should sequence the process of these systems. Start with the diaphragm contracting. Remember to write the words first, then draw the box.

At the end, be sure to include a frame of reference. Write a title at the top. References should be written on the outside of the frame and should include all the sources you used to get the information that is included in the map.

Be Specific!

Incorrect! The

cardiovascular and respiratory system work together including airway, lungs, blood vessels, heart, and the body.

Write the words first.

The diaphragm contracts, or pushes down, to allow the lungs room to expand and take in air.

The diaphragm contracts, or pushes down, to allow the lungs room to expand and inhale or take in air.

Then draw the box and continue.

Air comes in through the airway, which consists of the nose, pharynx, larynx, trachea, and bronchi.