Respiratory System Questions

Question 1

common passageway for both food intake and air movement, located between the mouth and the esophagus

Answer 1

pharynx

Question 2

chemical in the lungs that reduces the surface tension of water to keep the alveoli from collapsing

Answer 2

surfactant

Question 3

fold of tissue across the glottis within the larynx creates vocal sounds when it vibrates

Answer 3

vocal chord

Question 4

form in which most of the carbon dioxide is transported in the bloodstream

Answer 4

bicarbonate ion

Question 5

stage during breathing when air is pushed out of the lungs

Answer 5

expiration

Question 6

which of these is anatomically incorrect

Answer 6

the trachea enters the lungs

Question 7

how is inhaled air modified before it reaches the lungs

Answer 7

it must be humidified, filtered, and warmed

Question 8

what is the name of the structure that prevents food from entering the trachea

Answer 8

epiglottis

Question 9

branched tubes that lead from bronchi to the alveoli

Answer 9

bronchioles

Question 10

reinforced tube that connects larynx with bronchi

Answer 10

trachea

Question 11

chamber behind oral cavity and between nasal cavity and larynx

Answer 11

pharynx

Question 12

opening into larynx

Answer 12

glottis

Question 13

divisions of the trachea that enter ungs

Answer 13

bronchi

Question 14

which of these is incorrect concerning inspiration

a. rib cage moves up and out
b. diagphragm contracts and moves down
c. pressure in lungs decreases, and air comes rushing in
d. the lungs expand bc air comes rushing in

Answer 14

the lungs expand bc air comes rushing in

Question 15

air enters the human lungs because

Answer 15

atmospheric pressure is greater than the pressure inside the lungs

Question 16

the maximum volume of air that can be moved in and out during a single breath is called the

Answer 16

vital capicity

Question 17

if air enters the intrapleural space (the space between the pleura)

Answer 17

a lobe of the lung can collapse

Question 18

the enzyme carbonic anhydrase

Answer 18

speeds up the conversion of carbonic acid to carbon dioxide and water, and the reverse

Question 19

hemoglobin assists transport of gases by

Answer 19

combining with oxygen, CO2, H+ and being present in red blood cells

Question 20

in humans the respiratory center

Answer 20

is stimulated by carbon dioxide, is located in the medulla oblongata, and controls the rate of breathing

Question 21

what are the parts of the upper respiratory tract

Answer 21

nose, pharynx, larynx

Question 22

what are the parts are the lower respiratory tract

Answer 22

trachea, bronchi, lungs, aveoli

Question 23

the process of breathing in is called__ and the process of breathing out is called _____

Answer 23

inspiration;expiration

Question 24

the filtering of removing of dust and other particles in the upper respiratory tract is accomplished by

Answer 24

filtration by hairs in mucous in the nose

Question 25

Manny chocked bc a morsel of food slipped by his ____ that normally guards the superior opening of the larynx

Answer 25

epiglottis

Question 26

as lisa sang her favorite song, how was her pitch changed

Answer 26

width of the opening

Question 27

how does the trachea remain open like a hallow tube

Answer 27

it has rings which prevent it from squishing

Question 28

what us the correct sequence of air movement during inspiration

Answer 28

trachea, bronchial tube, bronchi,lungs, aveoli

Question 29

the site of gas exchange in the lungs is called

Answer 29

alveoli

Question 30

the alveoli of human lungs are lined with a surfactant which functions to

Answer 30

lower the surface tension of water and prevents the alveoli from closing

Question 31

the ____ is the respiratory control center of the brain

Answer 31

medulla