Block 4 Histology Md 1 Respiratory 2 Part A

Front 1

__ intrapulmonary bronchi on right and __ on the left

Back 1

3

2

Bronchial Tree list them =
6ct

Hint 1

Trachea
Bronchioles
Terminal bronchioles
Respiratory bronchioles
Alveolar ducts
Alveoli

Front 2

pulmonary lobule includes the =
3ct

Back 2

respiratory bronchioles,
alveolar ducts,
alveolar

Front 3

Lymphoid nodules may be present in

Called =

Back 3

lamina propria

BALT

Front 4

Bronchus Associated Lymphoid Tissue (BALT)

Back 4

Epithelium
Lamina propria
Muscularis
Submucosa
Cartilage
Adventitia

Hint 4

Front 5

Test Question for lab portion ot test

Bronchus = oblong white space top L of pic

Back 5

.

Front 6

Bronchioles

Intralobular airways with diameter of

Back 6

1 mm or less

Front 7

Bronchioles
do not have what =
2ct

Back 7

No cartilage
No glands in submucosa

Front 8

In larger bronchioles epithelium is =

Back 8

pseudostratified columnar ciliated

which changes to simple columnar ciliated or simple cuboidal ciliated in terminal bronchiole.

Hint 8

simple columnar ciliated
or
simple cuboidal ciliated
in terminal bronchiole.

Front 9

Bronchiolar epithelium contains ciliated & non-ciliated cells in the

Back 9

terminal segments.

Front 10

Non Ciliated cells are called

Back 10

Clara cells
and
have dome shaped apical surface.

Front 11

Clara Cells have basally located nucleus &

Back 11

RER
rough endoplasmic reticulum.

Membrane bound granules are seen in the =

Hint 11

apical cytoplasm.

Front 12

Clara Cells

secretory product contains

Back 12

Type 1 - surfactant (lipoprotein)

Type 2 produced by ____________ Surfactants coats the
epithelial surface.

Hint 12

pneumocyte type II.

Front 13

Clara Cells
also secrete a

Back 13

16-kDa protein aka

(CC16) = .

Hint 13

Clara cell protein

Secretoglobin 1A member 1, SCGB1A1

Front 14

Clara Cells
are also involved in the transport of

have high concentration of

Back 14

chloride ions across..

Cytochrome P450 and their no. increase in response to exposure to pollutants (detoxification).

Hint 14

Front 15

Bronchioles

Lamina propria
Bronchiolar smooth muscle
Musculature is under the control of =

Back 15

-elastic fibers and smooth muscles.
-more prominent than that of bronchi.
-vagus and sympathetic

Front 16

Epinephrine and other sympathomimetic drugs are frequently used to relax smooth muscle during =

Back 16

asthma attacks

Front 17

Transitional Zone
Respiratory Bronchiole

Arise from the bifurcation of terminal bronchioles (less than ___ mm in diameter).

Back 17

0.5

Front 18

Transitional Zone
Respiratory Bronchiole
Epithelium is

Back 18

simple cuboidal ciliated

becoming =

Hint 18

low cuboidal non-ciliated
in
subsequent branches.

Front 19

Transitional Zone
Respiratory Bronchiole

Walls of R.B. have thin saccular outpocketings,

Back 19

alveoli. (sites of some gas exchange)
_______ & _________ lie beneath the epithelium.

Hint 19

Elastic C.T.
&
smooth muscle