TEST 4-Respiratory System

Question 1

Nasal Passage

Answer 1

lined with mucus and hair 
modifies the air entering
1. filters 
2. warms
3. moistens

Question 2

Pharynx

Answer 2

throat

common passageway for air, food, and water

Question 3

Epiglottis

Answer 3

covers trachea when you swallow

Question 4

Uvula

Answer 4

covers nasal passage so food doesn’t go in

Question 5

Trachea

Answer 5

lined with mucus and cilia (filters and moistens)
cartilage rings-keep trachea open
cilia move mucus up to pharynx and it goes down the digestive system

Question 6

Larynx

Answer 6

voice box

make sounds only when air is moving out

Question 7

Bronchi

Answer 7

branches of trachea

Question 8

Bronchioles

Answer 8

branches in the lungs that the air moves through

Question 9

Alveoli

Answer 9

air sacs
covered in capillaries
in the lungs

Question 10

Breathing In-Inspiration

Answer 10

enlarge chest cavity
    rib muscles contract
    diaphragm contracts
air pressure decreases
air moves into lungs

Question 11

Breathing Out-Expiration

Answer 11

chest cavity decreases in size
rib muscles and diaphragm relax
air pressure increases
air moves out of lungs

Question 12

Control of Breathing Rate

Answer 12

CO2+H2O>carbonic acid (fizz in pop)
pH level of blood
more CO2>less oxygen
too much CO2>not enough oxygen, pH level goes down

Question 13

TV

Answer 13

Tidal Volume
normal amount of air you take in with a normal breath
.5 L

Question 14

IRV

Answer 14

inspiratory reserve volume
extra air you can inhale
exercising, singing
2L

Question 15

ERV

Answer 15

expiratory reserve volume
extra air coming out (exhaled)
holding breath
1 L

Question 16

RV

Answer 16

residual volume
air you cannot exhale
air is in lungs all the time
1 L

Question 17

VC

Answer 17

vitalcapacity=TV+IRV+ERV

Question 18

TLC

Answer 18

total lung capacity=VC+RV

Question 19

Path of Air

Answer 19

nasal passage>pharynx>trachea>bronchi>bronchioles>alveoli