L51 Histo Repiratory

Question 1

2 functional division

Answer 1

conducting zone

respiratory zone

Question 2

Mucous comes form

Answer 2

goblet cells and mucous secreting glands

Question 3

Respiratory epithelium
Types
Contains

Answer 3

ciliated pseudostratified columnar
Basal cells
Goblet cells

Question 4

Stem cells from which all other cell types aris

Answer 4

Basal cells

Question 5

blood vessels and mucous glands located in

Answer 5

Lamina propria

Submucosa

Question 6

Nasopharynx epithelium

Answer 6

Ciliated pseudostratified columnar

Question 7

Oropharynx epithelium

Answer 7

Nonkeratinized stratified squamous

Question 8

Laryngopharynx epithelium

Answer 8

Nonkeratinized stratifed squamous

Question 9

Vocal volds is covered with

Answer 9

nonkeratinized stratified squamous epithelium

Question 10

Most of larynx is

Answer 10

Respiratory epithelium

Question 11

Trachea mucosa
Epithelium
Basment membrane
Lamina propria

Answer 11

Respiratory epithelium on THICK basement membrane

Lamina propria with lots of elastic fibers

Question 12

Trachea submucosa

Answer 12

Loos CT with mucus secreting acini w/ serous demilunes

Question 13

Trachea layers

Answer 13

Mucosa
Submucosa
Cartilaginous layer
Adventitia

Question 14

As bronchi get smaller what happens

Answer 14

Cartilaginous rings decrease and disappear
Smooth muscle increases
Psudostatified columnar cells get shorter
Glands disappear
Goblet cells disappear

Question 15

Terminal bronchiole epithelium

Answer 15

ciliated simple cubodal

Question 16

Non ciliated cells interspersed w/ simple cuboidal epithelium in terminal bronchiole

Answer 16

Clara cells

Question 17

Order of terminal bronchiole conducting system

Answer 17

Terminal bronchiole
Respiratory bronchioles
Alveolar ducts
Alveolar sacs
Alveoli

Question 18

Respiratory bronchiole epithelium and surroundings

Proximal vs distal

Answer 18

Cuboidal resting on eosinophilic smooth muscle surrounded by thin layer of CT

occasional alveoli

Proximal: ciliated and clara cells
Distal: Clara cells

Question 19

Alveoli per adult lung

Answer 19

150 to 250 million

Question 20

Alveoli epithelium contains

Answer 20

Type I and type II alveolar cells

Occasional brush cells

Question 21

Type 1 alveolar cells
Other name
Shape

Answer 21

Alveolar surface cells

Squamous

Question 22

Type 2 alveolar cells
Other name
Shape

Answer 22

Septal cells

Cuboidal

Question 23

Alveolar macrophages

Other name

Answer 23

dust cells