4/2- Respiratory System (Exam 3)

Question 1

What is Boyle’s law?

Answer 1

In a sealed container the pressure of a gas is inversely proportional to the volume

Volume decreases and pressure increases
Volume increases and pressure decreases

Dictates and causes movement of air in and out of lungs

Question 2

What is quiet breathing or respiration?

Answer 2

2 sets of muscle are used to change the volume of your chest cavity

1) diaphragm
2) external intercostals

Question 3

What is a diaphragm?

Answer 3

Separates your abdominal and thoracic cavity

Question 4

What happens to the diaphragm if you inhale?

Answer 4

Diaphragm drops and raises rib cage

Increase volume of thoracic cavity

Pressure drops below atmospheric pressure and air comes in from the outside

Atmosphere forces it’s way in

Question 5

Explain the way external intercostal muscles work

Answer 5

Contract ribs and rib cage is lifted

Sternum gets pulled outward and volume increases in thoracic cavity

Pressure drops and air comes in

Question 6

What happens to the diaphragm when you exhale?

Answer 6

Relax diaphragm and raises upward while rib cage drops

And relax external intercostals

Decrease volume in chest cavity

Pressure rises and air comes out of lungs g

Question 7

What is forced respiration?

Answer 7

Respiration forced out like blowing a candle

Question 8

What muscles does forced inspiration or inhalation use?

Answer 8

Sternocleidomastoid

Pectoralis minor

Sudden inhalation picks up ribs

Question 9

What muscles and how does forced exhalation or expiration work?

Answer 9

External abdominal obliques
Internal abdominal obliques
Transverse abdominis
Rectus Abdominis

Squeezes organs in abdominal cavity and go upwards under diaphragm

Diaphragm rises and forced exhalation I

Question 10

What is the respirometer or spirometer?

Answer 10

Used to records respiratory volume

Question 11

What is the tidal volume?

Answer 11

Volume of air that moves in and out of the lungs during normal quiet respiration

Question 12

What is tidal breathing or respiration?

Answer 12

Quiet breathing in and out

Question 13

What is inspiratory reserved (volume)?

Answer 13

Volume of air that can be forcibly drawn into the lungs above and beyond a normal inhalation

Question 14

What is expiratory reserve (volume)?

Answer 14

Volume of air that can be forcibly expelled from the lungs above and beyond a normal exhalation

Question 15

What is residual volume?

Answer 15

Volume of air you can never expel from your lungs

Question 16

What is vital capacity?

Answer 16

Total volume of air that can be forcibly inhaled and exhaled

Question 17

Vital capacity + residual volume = ?

Answer 17

Total lung capacity

Question 18

What is epiglottis?

Answer 18

Flap of tissue that swings down to cover respiratory tract when you swallow

So food and water won’t go down the wrong tube

Question 19

What is glottis?

Answer 19

Opening of the respiratory system the epiglottis is protecting

Question 20

What is epiglottal cartilage?

Answer 20

Inside epiglottis