5. RESPIRATORY SYSTEM 2.pdf

RESPIRATORY SYSTEM CONDUCTING PART RESPIRATORY PART NASAL CAVITIES Three main anatomical areas: 1. The Vestibule 2. RESPIRATORY AREA 3. OLFACTORY MUCOSA Vestibule  RESPIRATORY AREA NASAL MUCOSA E – Epithelium M – Mucous glands of lamina propria S – Serous glands of...

RESPIRATORY SYSTEM CONDUCTING PART RESPIRATORY PART NASAL CAVITIES Three main anatomical areas: 1. The Vestibule 2. RESPIRATORY AREA 3. OLFACTORY MUCOSA Vestibule  RESPIRATORY AREA NASAL MUCOSA E – Epithelium M – Mucous glands of lamina propria S – Serous glands of lamina propria V – Thin walled venules  RESPIRATORY EPITHELIUM THE CILIATED PSEUDOSTRATIFIED COLUMNAR EPITHELIUM 1. CILIATED COLUMNAR CELLS (30%) 2. GOBLET CELLS (30%) 3. BRUSH CELLS 13 2 4. SMALL GRANULE CELLS (3%) 5. BASAL CELLS 5 4 1. CILIATED COLUMNAR CELLS 2.GOBLET CELLS 3. BRUSH CELLS  3. 1. 2. Upper Respiratory System LARYNX EPIGLOTTIS TRACHEA TRACHEALIS MUSCLE TRACHEA  Blood vessels Tracheal Lumen Respiratory epithelium Hyaline cartilage respiratory epithelium tracheal glands ADVENTITIA  BRONCHIAL TREE THE LOWER RESPIRATORY TRACT BRONCHI PLATES OF HYALINE CARTILAGE serous glands INTERLOBULAR BRONCHI serous glands PLATES OF HYALINE CARTILAGE BRONCHIOLES TERMINAL BRONCHIOLE LUNG RESPIRATORY BRONCHIOLES A RESPIRATORY BRONCHIOLE ALVEOLI  A RESPIRATORY BRONCHIOLE A RESPIRATORY BRONCHIOLE A RESPIRATORY BRONCHIOLE Alveolar Ducts Alveoli ALVEOLI AND RESPIRATORY MEMBRANE ALVEOLAR CELLS FUNCTION Secrete: SURFACTANT lamellar bodies PLEURAL MEMBRANES MESOTHELIUM LYMPHATIC VESSEL BLOOD VESSEL ALVEOLI