Lab 8 Thoracic Anatomy

1

nasal cavity

2

nostril

3

oral cavity

4

larynx

5

right main bronchus

6

right lung

7

pharynx

8

trachea

9

left main bronchus

10

left lung

11

diaphragm

1

main bronchus

2

segmental bronchus

3

trachea

4

lobar bronchus

1

cricoid cartilage

2

right lobe of thyroid gland

3

trachea

4

isthmus

5

thyroid cartilage

6

left lobe of the thyroid gland

1

glands

2

trachealis muscle

3

cartilage

1

ciliated columnar epithelium

2

seromucinous cells

3

hyaline cartilage

4

fibroelastic tissue

1

pseudostratified ciliated columnar epithelium

2

cilia

3

goblet cell

4

basement membrane

5

tracheal glands secrete mucus

6

Lamina propria

7

ducts of tracheal glands (lined with simple cuboid)

8

mucous alveoli: nuclei at periphery

9

perichondrium

10

hyaline cartilage

11

chondrocytes

1

bronchi

2

bronchiole

3

alveoli

4

alveolar sac

5

capillaries

6

columnar epithelium

1

capillary endothelium

2

type 1 pneumocyte

3

pneumocyte (type II)

4

alveolar air space

5

red blood cells

type 1 AEC

large flat cells minimize the distance between alveolar gas and blood to facilitate efficient gas exchange

type 2 AEC

cuboidal cells produce surfactant which lowers alveolar surface tension. also, maintain alveolar epithelium and can differentiate into type 1 AEC if needed

macrophage

engulfs debris and particles that reach the lungs

typical diameter of alveolar sac

Alveolar sac is typically 200 μm in diameter.
Density: 31.6 ±3.4 alveoli/mm3 (can convert to cm3

how close is alveolar exterior surface to capillaries

very close to the surface (easier to find by looking for erythrocytes then looking for thin endothelial cells)

1

type 1 pneumocytes

2

capillaries

3

type II pneumocyte

4

air

Name for the collection of connective tissues between the pulmonary vascular endothelium and the alveolar epithelium

alveolar septum