Lecture 5

Question 2

What is the propria submucosa?

Answer 2

tissue underlying the epithelium

Question 3

What is located in the propria submucosa (5 things)

Answer 3

1. Blood vessels
2. Secretory glands:
   
   • Seromucous glands
3. Smooth muscle
4. Lymph nodules
5. Elastic fibers

Question 4

What is the function of blood vessels of the nasal cavity?

Answer 4

Warm/cool the air

Question 5

are clara cells ciliated?

Answer 5

no!

Question 6

1. what is it
2. what is it

Answer 6

1. Pseudostratified columnar epithelium
2. Blood vessels

Question 7

3

4

Answer 7

3- seromucous glands

4- propria-submucosa

Question 8

what is function of seromucous glands

Answer 8

1. Trap particulate materials and microbes
2. Humidify the air

Question 9

are there glands in bronchioles and beyond?

Answer 9

no!

Question 10

1. ?
2. ?
3. ?
4. ?

Answer 10

1. ciliated Pseudostratified columnar epithelium
2. duct??
3. seromucous glands
4. artifacts

Question 11

5?

6

7

• what is this a picture of?

Answer 11

5- Hyaline cartilage
6- Propria submucosa
7- Adipose tissue, fat cells

• trachea

Question 12

What is function of smooth muscle in respiratory tract

Answer 12

Contract and relax, regulate appropriate amount of air flow in the airway

Question 13

1

2

3

Answer 13

1. Ciliated Pseudostratified columnar epithelium
2. Connective tissue layer
3. Blood vessel

Question 14

4

5

Answer 14

4- Hyaline cartilage

5- Smooth muscle

Question 15

Relative thickness of smooth mm. ____________ as the conduction airway decreases in size.

Answer 15

increase

Question 16

• what is this a slide of?

1

2

Answer 16

• bronchus
  1. Smooth muscle
  2. Lymph nodules

Question 17

What is function of lymph nodules in respiratory tract?

Answer 17

Fight against airborne infection

Question 18

1. what are the purple dots in the blue circle?
2. What is their function?

Answer 18

1. elastic fibers
2. Support the conducting (and respiratory) airways
   
   • Allow to move in multiple directions

Question 19

Where is hyaline cartilage found in the respiratory tract?

Answer 19

trachea and bronchi

Question 20

1. what is it
   
   • function?
2. what is it?
   
   • function?

Answer 20

1. trachealis muscle
   
   • Regulates airflow by changing the airway diameter
2. tracheal cartilage
   
   • Keeps the trachea open during inhalation & exhalation

Question 21

3

4

Answer 21

3- Propria-submucosa

4- Respiratory epithelium

Question 22

what is the name for the whole structure of 1

Answer 22

tracheal cartilage

Question 23

• what is this a picture of

1. what is it
2. what is it
3. what is it

Answer 23

• bronchus
  1. ciliated pseduostratified columnar epithelium
  2. Propria submucosa
  3. Duct

Question 24

4?

5?

6?

Answer 24

4- Hyaline cartilage
5- Glands
6- Lymphatic vessels

Question 25

• what is this an image of?

1. what is it?
2. what is it?

Answer 25

• bronchus

1. hyaline cartilage
2. ciliated pseduostratified columnar epithelium

Question 26

• what is this an image of?

1. what is it
2. ?
3. ?

Answer 26

• bronchus
  1. Smooth muscle
  2. Seromucous gland
  3. Hyaline cartilage

Question 27

1. ?
2. ?
3. ?

Answer 27

1. Blood vessel
2. Alveoli
3. bronchiole (no cartilage)

Question 28

what is this

Answer 28

Bronchoscopic view of a normal trachea

Question 29

1. what is this
2. what side is dipping down?

Answer 29

1. Bronchoscopic view of a collapsing trachea.
2. dorsal side
   
   • will collapse first

Question 30

1. what is it
2. what is it

Answer 30

1. Normal diameter trachea
2. Collapsing trachea

Question 31

at the thoracic portion of trachea

1. during expiration how will the collapsing trachea look like?
2. inhalation?

Answer 31

1. Expiration- trachea will be collapsed,
   
   • will be under pressure from thoracic cavity
2. Inhalation- trachea will be larger

Question 32

At the cervical portion of trachea

1. during expiration how will the collapsing trachea look like?
2. inhalation?

Answer 32

1. Larger diameter
2. Collapsed