Respiratory System

Question 1

Air goes through…

Answer 1

Nose -> Larynx -> Trachea

Question 2

Alveoli or Alveolus

Answer 2

Air sacs in our lungs

Question 3

Order in which air enters R.S.

Answer 3

1. External Vares
2. Internal Vares
3. Nasopharynx
4. Oropharynx
5. Laryngopharynx
6. Larynx
7. Trachea
8. Carina
   a. Primary Bronchus
   b. Secondary Bronchus
   c. Tertiary Bronchus
9. Bronchioles
10. Respiratory Bronchiole
    a. Alveoli Ducts
    b. Alveoli Sac
    c. Alveoli

Question 4

There are cells in the alveoli that

Answer 4

secrete (release) surfactants (surface tension-relieving hormones) in order to keep the alveoli open

Question 5

Macrophage cells

Answer 5

eat up rot & filth that could come into lungs

Question 6

Thoracic cavity

Answer 6

where the lungs and heart are located

Question 7

Where are the lungs and heart?

Answer 7

they sit on top of the diaphragm

Question 8

Cardiac notch

Answer 8

helps keep heart and lungs in place

Question 9

Oblique/Horizontal Fissure

Answer 9

feature of division

Question 10

Left lung has

Answer 10

one oblique division, two lobes

Question 11

Right lung has

Answer 11

one oblique division, one horizontal fissure, three lobes

Question 12

Hilus

Answer 12

entry way through blood vessels and bronchi

Question 13

Atmospheric Pressure

Answer 13

you breathe in when the air pressure outside your lungs is more than the pressure inside your lungs

Question 14

You inhale when

Answer 14

there are 760mm (millimeters of Mercury) outside

Question 15

Diaphragm

Answer 15

muscle that separates abdomen and thoracic cavity

Question 16

When you inhale, the diaphragm…

Answer 16

contracts, it lets air in as it gets smaller to make room, makes thoracic cavity larger

Question 17

When you exhale, the diaphragm…

Answer 17

expands, it gets bigger and bigger as to push air out, muscle relaxes

Question 18

Intercostal Muscles

Answer 18

muscles that run between the ribs, and help form and move the chest wall; help expand and shrink the size of the thoracic cavity to facilitate breathing

Question 19

The lungs expand at cost of the

Answer 19

ribs, diaphragm, and intercostal muscles

Question 20

Reserve Volume Air

Answer 20

the air that is left over in you after you breathe that can be used

Question 21

Tidal Volume

Answer 21

capacity that you can normally breathe (not including reserve volume air) (500 mL)

Question 22

Vital Capacity

Answer 22

the max you can breathe in and out (tidal volume + reserve volume air)

Question 23

Medulla Oblongata

Answer 23

part of the brain that controls breathing

Question 24

Chemoreceptors

Answer 24

controls pH in lungs

Question 25

pH of blood is...

Answer 25

slightly alkaline (7.1 - 7.4)

Question 26

Blood Fluid Loss

Answer 26

5% - Thirsty 10% - Sick 20% - Death

Question 27

Mechanical Functions of Respiration

Answer 27

diaphragm, intercostal muscles, and lungs

Question 28

Bronchi

Answer 28

create mucus to clean dust particles

Question 29

How many times do you breathe in a lifetime?

Answer 29

600 million

Question 30

You breathe _____

Answer 30

1 pint of air a day