14 Respiratory Histo

Question 0

Nasal histo

Answer 0

Epithelium with pseudostratified columnar epithelium with cilia and goblet cells

Lamina propria with seromucous glands and venous plexus

Question 1

Mucosa

Answer 1

• Immunologic and physical barrier
• secretory
• Selective absorbance

Cosnsists of Epithelium and laminapropria

Question 2

Respiratory epithelium cells

Answer 2

Columnar- absorptive and mucociliary elevator
Goblet- secretion
Basal-progenitors
Small granule- protein secretion
Brush-

Question 3

Olfactory epithelium

Answer 3

Olfactory cells
Supporting cells
Basal Cells-progenitors
Brush Cells

Bowmans glands in lamina propria to wash oror receptors

Question 4

Nasopharynx epthelium

Answer 4

Similar to respiratory epithelium, but has lymphocytes below

Question 5

Vocal cord epithelium

Answer 5

Non keritinized stratified squamous- resistant to air abrasion-
Thinner upper layer of lamina propria allows motion of vibration

Question 6

Epiglotis histo and epithelium

Answer 6

Luminal- stratified squamous
Respiratory side- respiratory epithelium
Mixed glands in larynx, elastic cartilage

Question 7

Tracheal histo

Answer 7

Mucosa plus submucosa of glands.
Tracheal hyaline cartilagenous rings
Posterior has smooth muscle connecting c shaped rings (trachealis m. contracts while coughing)

Question 8

Bronchi histo

Answer 8

repiratory mucosa
submucosa
cartilage pplates

Question 9

Bronchiole histo

Answer 9

Respiratorry epithelium
smooth muscle support
Clara cells replacing columnar- Secreting surfactant like supbstance

Question 10

Conducting Airway conditions

Answer 10

Chronic bronchitis
CF
Bronchial carcinoma
Asthma

Question 11

Asthma

Answer 11

affects bronchioles
constriction of smooth muscle narrowing lumen
Frrequenly decreased clara cells resulting in decreased surfactant type substance

Question 12

Respiratory passages

Answer 12

Respiratory bronchioles
Albeolar ducts
Alveolar sacs

Question 13

Pulmonary lobule

Answer 13

Terrminal bronchiole and all of the lung tissue it supplies

Question 14

Pulmonary Acinus

Answer 14

ung supplied by respiratory bronchiole

Question 15

Pneumocytes

Answer 15

Type I cells- Very thin cells create most of septa

Type II cells- large at corners of bronchi- secrete surfactant (and contain lamellar bodies

Question 16

Surfactant makeup

Answer 16

Phosphatidylcholine
Phosphatidylglycerol

Surfactant proteins ABCD

Antioxidants

Question 17

Capillary endothelial cells Hormonal function

Answer 17

ACE in membranes

Question 18

Blood air barrier

Answer 18

200micron where gas exchange occurs-
respiratory epithelium, BM, Cpilary endothelial cell

Lower portion of lungs supported by elastic tissue for recoil

Question 19

Respiratory portion conditions

Answer 19

ARDS
Interstitial fibrosis
infections
Emphyseema- loss of seepta and less exchange
Lunc CA.

Question 20

Terminal bronchiole histo

Answer 20

Simple cuboidal epithelum
1-2 layers smooth muscle
Clara cells
No alveoli