Class Notes (1,100,000)
CA (630,000)
McGill (30,000)
ANAT (300)
Lecture

Lab 7. Respiratory System.doc


Department
Anatomy & Cell Biology
Course Code
ANAT 261
Professor
Jason Young

This preview shows half of the first page. to view the full 1 pages of the document.
Lab 7 Respiratory system
Parts of the three respiratory zones that will be seen in lab:
1. Conducting
a. Trachea
*pseudostratified ciliated columnar epithelium with goblet cells
b. Intrapulmonary bronchus
c. Bronchiole regular
*simple ciliated columnar epithelium
d. Bronchiole terminal
*simple ciliated columnar epithelium with Clara cells
2. Transitional
a. Bronchiole respiratory
*discontinuous cuboidal epithelium with Clara cells
3. Respiratory
a. Alveolar duct
Features of lung tissue:
- Pneumocyte type I
o Small, squamous cell on alveolar lumen
- Pneumocyte type II
o Larger than type I; big, irregular nucleus
o Secretes surfactant
- Alveolar macrophage
o Large cell with irregular nucleus
o Can be free or fixed in the alveolar wall
- Capillary endothelial cell
o shares BM with pneumocyte type I
What you should look for in the lab:
Cells
Glands
Cartilage
Smooth muscle
Lamina Propria
Trachea
Ciliated columnar
Goblet
Mucous
Serous
Yes (a
ring)
Yes
Yes
Bronchus (Intrapulmonary)
Ciliated columnar
Goblet (less)
Serous
Yes
(PLATES!)
Yes
Yes
Bronchiole - regular
Ciliated columnar
-
-
Yes (2 layers)
Yes (thin)
Bronchiole - terminal
Ciliated columnar
Clara
-
-
Yes (less)
Yes (almost
gone)
Bronchiole - respiratory
Non-ciliated cuboidal
Clara
-
-
Yes (forms large
projections)
-
Alveolar duct
Clara (less)
-
-
Yes (discontinuous
within epithelial
knobs)
-
You're Reading a Preview

Unlock to view full version