(M) Lec 4: Respiratory System (Summary table)

Question 1

Epithelium

Bronchi

Answer 1

Respiratory

Question 2

Epithelium

Bronchioles

Answer 2

Simple ciliated columnar with few goblet cells

Question 3

Epithelium

Terminal bronchioles

Answer 3

Simple ciliated cuboidal with Clara cells

Question 4

Epithelium

Respiratory bronchioles

Answer 4

Simple ciliated cuboidal with Clara cells with scattered alveoli

Question 5

Epithelium

Alveolar ducts and sacs

Answer 5

Simple cuboidal between many alveoli ??

pero sabi sa ppt it’s Simple squamous

Question 6

Epithelium

Alveoli

Answer 6

Type I and II alveolar cells

Question 7

Prominent spiral bands of smooth muscle; irregular hyaline cartilage plates

Answer 7

Bronchi

Question 8

Prominent circular layer of smooth muscle; no cartilage

Answer 8

Bronchioles

Question 9

Thin, incomplete circular layer of smooth muscle; no cartilage

Answer 9

Terminal bronchioles

Question 10

Fewer smooth muscle fibers, mostly around alveolar openings

Answer 10

Respi bronchioles

Question 11

Bands of smooth muscle around alveolar openings

Answer 11

Alveolar ducts and sacs

Question 12

None but with network of elastic ad reticular fibers

Answer 12

Alveoli

Question 13

Repeated branching; conduct air deeper into lungs

Answer 13

Bronchi

Question 14

Conduct air; important in bronchoconstriction and bronchodilation

Answer 14

Bronchioles

Question 15

Conduct air to respiratory portions of lungs; Clara cells with several protective functions

Answer 15

Terminal bronchioles

Question 16

Conduct air deeper, with some gas exchange and protective Clara cells

Answer 16

Respiratory bronchioles

Question 17

Conduct air with much gas exchange

Answer 17

Alveolar ducts and sacs

Question 18

Sites of all gas exchange; surfactant from type II pneumocyte; dust cells

Answer 18

Alveoli