breathing and exchange of gases

Question 1

Give order of respiratory system

Answer 1

nostrils-nasal cavity-internal nostrils- pharynx-larynx-trachea-lungs

Question 2

How many chambers in nasal cavity

Answer 2

2

Question 3

Function and Location of conchae

Answer 3

conditioning, humidification and regulation of temp to body temp (of air)

Question 4

Name of sensory membrane in nasal cavity

Answer 4

Schneiderian membrane

Question 5

Common passage for food and air??

Answer 5

Pharynx

Question 6

How many cartilages does the larynx have?

Answer 6

9; 3 singular and 3 pairs

Question 7

Name the unpaired cartilages of larynx

Answer 7

Epiglottis, Thyroid cartilage, Cricoid

Question 8

Name the paired cartilages

Answer 8

Arytenoid, corniculate, cuneiform

Question 9

Largest cartilage of larynx?

Answer 9

Thyroid

Question 10

How are the vocal cords of males?

Answer 10

thick, long

Question 11

Vocal cords in females?

Answer 11

thin, short

Question 12

Function of flap that covers glottis

Answer 12

Epiglottis; prevents entry of food into trachea

Question 13

Which type of epithelium is present in trachea?

Answer 13

pseudostratified ciliated epithelium

Question 14

In which direction does the cilia beat?

Answer 14

outwards

Question 15

What is trachea externally covered with?

Answer 15

C shaped cartilaginous rings

Question 16

Function of part in above answer?

Answer 16

prevents trachea from collapsing

Question 17

Where does the trachea bifurcate into primary bronchi?

Answer 17

5th thoracic vertebra

Question 18

Which memebrane covers the lungs? how many layers does it have?

Answer 18

Pleural membrane. 2 layers

Question 19

Name of layers

Answer 19

Parietal(outer) and visceral(inner)

Question 20

Fluid between the layers of pleural membrane?

Answer 20

Pleural fluid

Question 21

Function of pleural fluid

Answer 21

prevents friction between parietal and visceral membranes when lungs expand and also acts as a shock absorber

Question 22

What is the dome shaped muscle below the lungs?

Answer 22

Diaphragm

Question 23

In which type of organisms is the diaphragm present

Answer 23

Mammals

Question 24

What is the empty space between lungs?

Answer 24

Mediastinum

Question 25

Characteristic feature of left lung?

Answer 25

cardiac notch

Question 26

What all comprises the conducting zone?

Answer 26

Trachea, primary bronchi, secondary bronchi, tertiary bronchi, initial bronchioles, terminal bronchioles

Question 27

What all comprises the respiratory zone?

Answer 27

Respiratory bronchioles, alveolar duct, alveoli sacs

Question 28

Types of tissues present in conducting and respiratory zones?

Answer 28

cuboidal and squamous epithelium respectively.

Question 29

From where to where are the c shaped rings present?

Answer 29

primary bronchi to initial bronchioles

Question 30

How many lobes are the left and right lungs divided into?

Answer 30

3 and 2

Question 31

How is the distribution of alveoli in both lungs?

Answer 31

Unequal

Question 32

What all comprises the respiratory membrane?

Answer 32

pneumocytes, basement substance, endothelium of RBCs