The Respiratory System

http://

www.youtube.com/watch?v=hc1YtXc_84A

http://science.nationalgeographic.com/science/health-and-human-body/human-body/lungs-article/

Cellular Respiration

Cells in your body require _______________ to carry out activities like cell division, sending messages and transporting nutrients

Where does the energy come from?

If you answered _______________, you’re partly right

Cells also need _______________ to release energy that is stored in food molecules like glucose

This is done through a process called _______________ _______________

Each time you _______________ _______, you take in oxygen that your cells require to carry out cellular respiration

_______________ _______________ and water are produced in the process

Your body gets rid of carbon dioxide every time you _______________ ________

The function of the _______________ _______________ is to allow this exchange of _______________ gas and _______________ _______________ gas to occur

Cellular Respiration Equation

_______________ + _______________ → ______________ + ____________ ____________ + ENERGY

_____ + _____________ → _____ + _____ + NRG

Mouth

Larynx

Pharynx

Nose

The Respiratory System

The respiratory system includes many _______________ that work together to take up oxygen and get rid of _______________ _______________

Air travels through the _______________ or mouth into the throat (pharynx) and then the _______________. The larynx contains vocal _______________ that produce the sound of your voice as air moves through them

The air continues down the _______________ and into two _______________ that lead to the left and right lung

Smaller tubes called _______________ lead to the _______________ which are the site of gas exchange

Gas Exchange

http://youtu.be/mmpzIG9afJA

Alveoli are surrounded by tiny blood vessels called _______________

_______________ _______________ occurs between the air in the alveoli and the _______________ in the capillaries

_______________ _______________ cells take up oxygen from the air in the alveoli and give off _______________ _______________ from the body

This carbon dioxide is _______________ with the next breath

http://www.youtube.com/watch?v=Mf8xTqfspp4

Breathing Movements

Inhalation (inspiration)

• Ribs are pulled _______ & ________

• diaphragm contracts and moves _______________

• _______________ in lung volume

• Pressure in lungs decreases, leads to _______________ of air

Exhalation (expiration)

• Ribcage _______________

• Diaphragm _______________ and moves up

• _______________ in lung volume

• Pressure in lung increases, leads to exhalation of _______________ (carbon dioxide)

Bill Nye

Bill Nye respiratory system full episode – youtube

https:// www.youtube.com/watch?v=m7NfGNJc6KU