Respiratory System Intro
Objectives:
A. Discuss the basic morphologic features of the following structures in the mammalian respiratory tract:
1. nasal cavity
a. respiratory region
b. olfactory region
2. nasopharynx
3. larynx
4. trachea
5. lung
a. bronchi
b. bronchioles
c. alveolar ducts
d. alveolar sacs
e. alveoli
B. Recognize the location and components of the air-blood barrier in the lung.
C. Correlate morphology of the type II pneumonocyte with its presumed function.
Slides:
#93 Nasal turbinate of the heifer
#94 Ethmoid labyrinth of the horse
#95 Larynx from a dog
#96 Trachea from a dog
#97 Lung
Respiratory system Terms:
Nasal cavity
Vestibule
Nasal turbinate
Convex surface
Concave surface
Terminal Vascular Bed
Mucosa
Lamina Propria/submucosa
Seromucous glands
Olfactory Epithelium
Bipolar sensory neurons
Basal cells
Supporting (sustentacular) cells
Olfactory nerve bundles
Respiratory Mucosa
Larynx
Cricoid, thyroid and arytenoids cartilages
Hyoid bone
Lateral Ventricle
Vocal fold
Laryngeal muscles
Laryngeal mucosa/submucosa
Lymphatic nodules
Trachea
Tracheal rings (hyaline cartilage)
Pseudostratified Columnar Epithelium
Goblet cells
Trachealis muscle
Secondary Bronchus
Tertiary Bronchi
Lamina propria
Muscularis mucosa
Submucosa
Cartilage plaques
Tunica adventitia
Bronchioles
Club cell
Terminal (3°) bronchiole
Respiratory bronchiole
Alveoli
Alveolar duct
Alveolar sac
Type 1 pneumocyte
Type 2 pneumocyte
Alveolar macrophage
Endothelial Cell