Respiratory System

Question 1

Functions of respiratory system

Answer 1

Transport Gasses(oxygen and carbon dioxide)

Produce sounds- for communication (Vocal Chords)

Question 2

How is breathing regulated

Answer 2

Breathing rate regulated by tissue pH.

Increase CO2 in tissue = decrease in pH = increase in breathing rate

Question 3

Steps of Inhalation

Answer 3

1.Muscles between ribs contract, rib cage elevates

2.Diapragm contracts, pulled down, pushes organs down

3.Volume increases in thoracic cavity, so decrease in pressure in lungs

4.Air pushed into lungs

Question 4

Steps of Exhalation

Answer 4

1.Rib cage comes down(Muscles relax)

2.Diaphragm returns to normal dome shape

3.Decrease volume in thoracic cavity so increase pressure in lungs

4.Air pushed out of lungs

Question 5

Structures in order

Answer 5

Upper
1.Mouth/nose
2.Pharyx- throat
3.Epiglottis
4.Larynx- vocal box

Lower
5.Trachea- windpipe
6.Bronchi- two main branches coming from trachea
7.Bronchioles- smaller branches
8.Lungs
9.Aveoli- Gas exchange takes place

Question 6

Gas Exchange in lungs. Talk about where each gas starts and ends up.

Answer 6

CO2- moves out of blood and into alveoli

O2- moves out of alveoli into blood

Question 7

Epiglottis

Answer 7

flap of tissue that closes while swallowing. “Down the wrong tube”

Question 8

Explain the entire process of water moving up the straw

Answer 8

Lower pressure inside your mouth, outside air pressure is greater so it pushes the water up the straw and into your mouth

Question 9

Tell me the two systems involved in straw

Answer 9

Outside/Inside Air + Mouth and straw

Question 10

How does this process relate to the respiratory system?

Answer 10

Diaphragm will increase/decrease volume which will increase/decrease pressure in the lungs.

Pressure goes from high to low