Respiratory system 11-1/2

Question 1

Nasal cavity

Answer 1

space in which air is warmed, moistened and filtered

Question 2

nostril

Answer 2

air first enters the body through here

Question 3

pharynx

Answer 3

a cross roads leading to the esophagus or the trachea

Question 4

epiglottis

Answer 4

prevents food from entering the trachea

Question 5

glottis e

Answer 5

a slit with vocal chords

Question 6

larynx f

Answer 6

contains the vocal chords

Question 7

trachea g

Answer 7

tube with cartilaginous rings that allow air to pass to the bronchus

Question 8

bronchi h

Answer 8

a branch off the trachea leading to the bronchioles

Question 9

bronchioles i

Answer 9

smaller, numerous branches leading to the alveoli

Question 10

lungs j

Answer 10

contains millions of alveoli

Question 11

diaphragm k

Answer 11

large muscular sheet that contracts to increase thoracic pressure

Question 12

What is the function of the nose?

Answer 12

• passage for the entrance of air

- air is warmed, filtered, moistened

Question 13

what does the nasal cavity contain?

Answer 13

• mucus producing cells
• hair
• celia
• rich supply of blood

Question 14

What circumstances does a person breathe with their mouth instead of nose?

Answer 14

• larger volumes of air can be inhaled from the mouth
• O2 is depleted and breathing rate increases
• if the nasal passage is blocked

Question 15

How does air within the trachea differ between nose breathing and mouth breathing?

Answer 15

• more pollen/particulates because it isn’t filtered

- colder and less moist

Question 16

What is an advantage to nose breathing?

Answer 16

• more filtration, warm and moistness