Pearson respiratorry system

Question 1

major function of resp system

Answer 1

supply body with O2

dispose of CO2

Question 2

4 processes collectively called respiration

Answer 2

1. pulmonary ventilation
2. external respiration
3. transport of respiratory gases
4. internal respiration

Question 3

ventilation

Answer 3

air in and out lung

inspiration & expiration

Question 4

external respiration

Answer 4

O2 diffuse from lung to blood

CO2 from tissue cells to lung

Question 5

transport of respiratory gases

Answer 5

O2 from lung to tissue cells
CO2 from tissue cells to lung
blood is the transporting fluid

Question 6

internal respiration

Answer 6

O2 diffuse from blood to tissue cell

Co2 from tissue cells to blood

Question 7

respiratory system includes

Answer 7

nasal cavity 
nose
paranasal sinuses
pharynx 
larynx
trachea
bronchi with their smaller branches
lungs with alveoli

Question 8

upper resp system

Answer 8

nose to larynx
!. nose
2. nasal cavity
3. paranasal sinuses
4. pharynx
5. larynx

Question 9

lower resp system

Answer 9

larynx and structures below it 
!. larynx
2. trachea
3. bronchi and smaller branches
4. lungs and alveoli

Question 10

key functions of the nose

Answer 10

provides airway for resp
moisten and warm entering air 
filter and clean entering air 
resonating chamber for speech 
houses olfactory receptors

Question 11

root of nose

Answer 11

area betw eyebrows

Question 12

dorsum nasi

Answer 12

anterior margin

Question 13

apex

Answer 13

tip of the nose

Question 14

skin in lateral and anterior aspect

Answer 14

thin

contains many sebaceous glands

Question 15

internal nasal cavity

Answer 15

lies in and posterior to the external nose

Question 16

nasal septum formed

Answer 16

anteriorly by the septal cartilage

posteriorly by the vomer bone

Question 17

choanae

Answer 17

posterior nasal apertures

Question 18

roof of nasal cavity is formed

Answer 18

ethmoid and sphenoid bones of the skull

Question 19

floor of nasal cavity formed

Answer 19

palate

Question 20

palate

Answer 20

separates nasal cavity from the oral cavity

Question 21

hard palate

Answer 21

anterior bit

supported by palatine bones & processes of maxillary bones

Question 22

soft palate

Answer 22

posterior bit
unsupported
muscular

Question 23

nasal vestibule

Answer 23

part of nasal cavity
superior to nostrils
lined with skin
skin contains sebaceous glands and numerous hair follicles

Question 24

vibrissae

Answer 24

filter coarse particles

Question 25

rest of nasal cavity lined with 2 mucous membranes

Answer 25

1. olfactory mucosa - contains olfactory epithelium (superior region of nasal cavity)
2. respiratory mucosa - pseudostratified ciliated columnar epithelium - contains scattered goblet cells - rest on lamina propria (richly supplies with seromucous nasal glands)

Question 26

seromucous nasal glands

Answer 26

have mucus secreting mucous/ serous cells

mucus contain lysosome (antibacterial enzyme)

Question 27

epithelial cell of respiratory mucosa secrete

Answer 27

defensins (natural antibiotic/ kill invading microbe)

Question 28

nasal mucosa

Answer 28

richly supplied with sensory nerve endings
contact with irritating particles
trigger sneeze reflex

Question 29

what underlies nasal epithelium?

Answer 29

rich plexus of capillaries
thin-walled veins
warm incoming air flowing on mucosal surface

Question 30

paranasal sinuses located in

Answer 30

frontal
sphenoid
ethmoid
maxillary bones

Question 31

pharynx connects to

Answer 31

mouth and nasal cavity superiorly to larynx