respiratory system review

Question 1

what is the bronchi

Answer 1

the trachea that is divided into r and l bronchi

Question 2

what are bronchioles

Answer 2

branched divided from bronchi, have thinner walls and the c rings are no longer present

Question 3

what are alveoli

Answer 3

small sacs at end of bronchioles, where gas exchange occurs

Question 4

what do the ribs and diaphragm when breathing occurs

Answer 4

expand and contracts the thorax cavity

Question 5

what is the pleural membrane

Answer 5

thin serous membrane that covers lungs, chest wall and diaphragm, helps with siding during inhalation exhales

Question 6

what does the pleural membrane surround

Answer 6

the lungs

Question 7

the process of inhaling is accompanied by

Answer 7

a decrease in volume in thoracic cavity

Question 8

what is this: air pressure in lungs decrease and outside air rushes in

Answer 8

inhalation

Question 9

where does oxygen diffuse in the blood

Answer 9

alveoli

Question 10

speed sounds are made when air moves through

Answer 10

larynx

Question 11

what holds the structures that vibrate to make sound

Answer 11

larynx

Question 12

cilia are found where

Answer 12

in the trachea

Question 13

which enzyme speeds up the reaction between CO2 and H2O

Answer 13

carbonic anhydrase

Question 14

why is hemoglobin suited for transport of oxygen

Answer 14

picks up and gives up easy

Question 15

diffusion of gases occurs in

Answer 15

lungs and tissues

Question 16

the trachea is held open by for —— so air can pass

Answer 16

c rings

Question 17

what is the respiratory centre sensitive to

Answer 17

high oxygen content in blood

Question 18

o2 enter blood in

Answer 18

the lungs

Question 19

o2 exits blood

Answer 19

in tissues

Question 20

co2 enter blood where

Answer 20

tissue

Question 21

co2 exits blood

Answer 21

in the lungs

Question 22

what the muscles in ribs called

Answer 22

intercostal muscles

Question 23

what is the amount of pressure gas exerts

Answer 23

partial pressure

Question 24

most of co2 carried in blood is

Answer 24

bicarbonate ions

Question 25

how is carbominohemoglobin formed

Answer 25

small amount is co2 enter red blood cells is taken up by hemoglobin

Question 26

what is reduce hemoglobin

Answer 26

blood that was left the tissue capillaries and is deep purple

Question 27

during inhaling what occurs

Answer 27

air is conducted toward the lungs

Question 28

during exhaling what occurs

Answer 28

air is conducted away from the lungs

Question 29

what happens to air when it’s passed through air passage

Answer 29

filter my cilia, warmed by blood vessel and moisted

Question 30

what glands drain into nasal cavities

Answer 30

tear glands

Question 31

what are air filled mucous membranes spaces in skull

Answer 31

cranial sinuses

Question 32

where do the nasal cavities empty knot

Answer 32

nasopharynx

Question 33

what occurs if there were a decreased level of hemoglobin in the blood?

Answer 33

tissues would become more acidic

Question 34

In the capillary network surrounding the alveoli, oxygen enters the blood by

Answer 34

diffusion

Question 35

What occurs when the diaphragm relaxes and becomes dome-shaped

Answer 35

rib muscles relax, thoracic cavity volume decreases and exhalation occurs

Question 36

Below the pharynx, which is the correct descending anatomical order?

Answer 36

epiglottis, larynx, trachea, alveoli

Question 37

Receptors in the breathing center of the medulla oblongata are stimulated by

Answer 37

high carbon dioxide levels

Question 38

Hemoglobin releases oxygen at the tissues if

Answer 38

temperature increases and the blood is more acidic

Question 39

During external respiration, the concentration of which increases in blood?

Answer 39

oxyhemoglobkn