science respiratory

Question 1

an organism supplies its cells and tissues with
the oxygen needed for metabolism and relieves
them of the carbon dioxide formed in
energy-producing reactions

Answer 1

Respiration

Question 2

Oxygen passes through alveolus
into the blood in the capillaries via
diffusion process

Answer 2

gas exchange

Question 3

respiration, the respiratory system performs the following
functions:

Answer 3

regulation of the blood ph
voice production
oflaction
protection

Question 4

The sensation of smell occurs when airborne molecules are
drawn into the nasal cavity

Answer 4

3. Olfaction. The

Question 5

In a healthy lung, there are at least two types of macrophages:

Answer 5

alveolar macrophages (AM) and interstitial macrophages (IM)

Question 6

are the major macrophage populations in the lung and have unique characteristics in both steady-state conditions and disease state

Answer 6

interstitial macrophages (IM)

Question 7

lso known as dust cells are a type of white blood cells. The immune system is divided into the cellular and humoral components.

Answer 7

alveolar macrophages (AM)

Question 8

Consists of the external nose and
the nasal cavity

Answer 8

nose

Question 9

is the open chamber inside the
nose where air first enters the
respiratory system

Answer 9

nasal cavity

Question 10

begins at the anterior external
openings

Answer 10

the nares

Question 11

extends to posterior openings

Answer 11

chonaeo

Question 12

the nasal cavity has five functions:

Answer 12

serves as passageway for air
clears the air
humidifies the air
Contains the olfactory epithelium.
Helps determine voice sound.

Question 13

the sensory organ for smell, is
located in the most superior part of the nasal cavity

Answer 13

olfactory epithelium.

Question 14

This mucous membrane consists of

Answer 14

pseudostratified ciliated columnar epithelium with goblet cells

Question 15

the common opening of both the
digestive and the respiratory
systems.

Answer 15

pharynx or throat

Question 16

anterior part of the
laryngopharynx and extends
from the base of the tongue
to the trachea.

Answer 16

larynx or voice box

Question 17

is held in place by
membranes and muscles
superior to the hyoid bone

Answer 17

larynx or voice box

Question 18

larynx or voice box four main functions

Answer 18

Maintains an open passageway for air movements
2. Prevents swallowed materials from entering the larynx
and lower respiratory tract
3. Produces sound for speech
4. Protects the lower respiratory tract from foreign
materials

Question 19

allows air to flow into the
lungs

Answer 19

trachea or windpipe

Question 20

a membranous tube
attached to the larynx and
consists of dense regular
connective tissue and
smooth muscle

Answer 20

trachea or windpipe

Question 21

15–20 C-shaped
pieces of hyaline
cartilage

Answer 21

tracheal rings

Question 22

an inside diameter of 12
mm and a length of 10–12
cm

Answer 22

trachea or windpipe

Question 23

The trachea divides to
form two smaller tubes
called

Answer 23

main bronchi, or
primary bronchi each

Question 24

two main bronchi is a
ridge of cartilage called
the

Answer 24

carina

Question 25

are less than 1 mm in
diameter and have less cartilage
and more smooth muscle

Answer 25

Bronchioles

Question 26

are lined
with ciliated simple columnar
epithelium

Answer 26

larger bronchioles

Question 27

are small, air-filled chambers
where the air and the blood
come into close contact with
each other

Answer 27

alvole

Question 28

this is where the gas exchange happens

Answer 28

alveoli sac

Question 29

how many alveolis are there in TWO lungs

Answer 29

300 million

Question 30

primary organs of respiration

Answer 30

lungs

Question 31

what is the weigh of the right lung

Answer 31

620 g,

Question 32

what is the weigh of the left lung

Answer 32

560 g