c-87 nasal epithelium respiratory segment –pseudostratified epithelium (respiratory epithelium)...
TRANSCRIPT
C-87 Nasal epithelium
• Respiratory segment– Pseudostratified epithelium
(Respiratory epithelium)• Ciliated cell, goblet cell, brush cell,
small granule cell, basal cell
– Lamina propia• A complex set of capillary loops,
mucous gland with serous demilune
– Periosteum of the adjacent bone
• Olfactory segment
• Olfactory segment– Pseudostratified epilthelium (olfactory epithelium)
• Olfactory cell (bipolar neuron), supporting cell, brush cell, basal cell,
much thicker than respiratory epithelium
– Lamina propia• Olfactory gland (bowman’s gland), myelinated nerve, unmyelianted nerve
– Periosteum of the adjacent bone
Compare : Olfactory epithelium Respiratory epithelium
• Goblet cell
• Nerve
• Thicker or thiner ( epithelium )
• ……
Compare : Olfactory epithelium Respiratory epithelium
Olfactory epithelium
Respiratory epithelium
Olfactory mucosa
A60 Nose, upper lip
• Vibrissae( hair follicles)
• Sebaceous glands
• Smooth muscle
• Mucous glands, serous glands
• Lots of blood vessels
A-100 Vocal cord
• Vocal fold, vocalis muscle, ventricle, ventricular fold (false vocal fold),
• Stratified squamous epithelium,
stratified columnar epithelium,
pseudostratified epithelium
• Mixed glands
• Hyaliane cartilage
• Vacalis muslce: skeletal muscle
vocalis muscle
vocal fold
ventricle
ventricular fold
B-24 Mammal trachea, cs
• Mucosa– Respiratory epithelium (ciliated cell,
goblet cell, etc), thick basement membrane – loose connective tissue
• Submucosa– Loose connective tissue, submucosal glands
• Cartilaginous layer, or muscular layer
• Adventitia
Trachea
B-25, 26, A-49 Lung
Bronchi
• Mucosa– Respiratory epithelium– Lamina propia
• Muscularis: SmM• Submucosa: glands• Cartilage layer: hyaline• Adventitia
Bronchioles
Epithelium pseudostratified epi., simple columnar epi., simple cuboidal epi.
Layer of smooth muscleLack of gland and cartilage plate
• Pulmonary acini– Terminal bronchiole: without goblet cell simple cuboidal epi, ciliated cell, clara cell– Respiratory bronchiole:
ciliated cell, clara cell, smooth muscle layer alveoli : gas exchange – Alveoli
• Alveolar duct• Alveolar sac• Alveoli
–Type I : thin squamous cells, 95% alveolar surface
–Type II : cuboidal cells, 5%–alveolar cell, capillary
Bronchioles Alveolar ducts & alvelar sacs
Bronchiole & respiratory bronchioles
Terminal brochioles
Clara cells
Respiratory bronchiole
Septal cellType II
Alvelus