Micro - Respiratory System
Terms
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- Type of Cartilage Nasal Septum is made of
- HYALINE CARTILAGE
- General Layers of All Conducting Airways
- (1) Mucosa - Epithelium and Lamina Propria (2) Submucosa - CT, Support elements (bone, cartilage, SM) (3) Adventitia - outermost layer of CT (on areas not immediately resting on bone)
- Classification of Cells in Respiratory Mucosa. 5 Cell Types found
- PSEUDOSTRATIFIED COLUMNAR EPITHELIUM (1) Ciliated (2) Goblet (3) Brush (4) Basal (5) Small Granule
- Difference b/w OLFACTORY and RESPIRATORY epithelium
- Olfactory - (1) Thicker (2) More Nuclei (3) NO GOBLET CELLS
- Difference b/w OLFACTORY AND RESPIRATORY Lamina Propria
- OLFACTORY -Bowman's glands - tubuloalveolar serous glands -Olfactory Nerve - large diameter unmyelinated axons RESPIRATORY - Highly vascular - Seromucous Glands - Cavernous Erectile Tissue
- Found in deep levels of lamina propria in Respiratory mucosa that serve to (1) Warm incoming air (2) Block passage of air in response to irritation
- CAVERNOUS ERECTILE TISSUE
- Type of cells lining Nasopharynx
- MOSTLY - Psedostratified columnar epithelium POSTERIOR PHARYNGEAL WAL - Stratified Columnar - Stratified Squamous
- Cell type that lines -EPIGLOTTIS -LARYNX -VENTRICULAR FOLDS -VOCAL FOLD
- -STRATIFIED SQUAMOUS EPI -PSEUDOSTRATIFIED AND CILIATED EPI -PSEUDOSTRATIFIED COLUMNAR EPITHELIUM -STRATIFIED SQUAMOUS EPITHELIUM
- C-Shaped rings in Trachea are part of what layer and what type of cartilage is it made of?
- -ADVENTITIA -HYALINE CARTILAGE
- Which bronchi supplies bronchopulmonary segments?
- TERTIARY BRONCHI
- What comprises BRONCHIAL FLUID?
- 1) Mucins 2) Serum Proteins 3) Secretory IgA 4) IgM 5) Lactoferrin
- Types of cells found in wall of Terminal Bronchioles
- 1) CILIATED CUBOIDAL EPITHELIUM 2) CLARA CELLS
- T or F Goblet cells are found in ALL branches of bronchioles.
- FALSE. Goblet cells can be found in larger bronchioles but are NOT FOUND in TERMINAL BRONCHIOLES
- LOCATION and FXN of CLARA CELLS
- Epithelia cells found in terminal and respiratory brochioles. Purpose: Secrete lipoprotein that prevents bronchioles from collapsing during expiration
- Type I vs Type II Pneumocytes -Which one is more readily found?
- Type I - 95% -squamous epithelium -provide minimal thickness --> permeable to gas exchange - DO NOT DIVIDE TYPE II - 2-5% -Cuboidal epithelium -Locate primarily in septal jxns -RELEASE SURFACTANT -CAN DIVIDE -CAN BECOME TYPE I
- Structure that permits airflow b/w adjacent alveoli, keeping pressures equalized
- ALVEOLAR PORES aka PORES OF KAHN
- THIN vs THICK REGION in Alveolar Capillary Cmplx
- THIN - Fused BASAL LAMINA of alveolar and capillary epithelium - Primary site for GAS EXCHANGE THICK -OWN BASEMENT LAMINA of alveolar and capillary -CT contains fibers and cells -PRIMARY SITE FOR LYMPHATIC EC DRAINAGE
- BARRIER cmpnts of THIN REGION in alveolar capillary cmplx
- 1) SURFACTANT 2) TYPE 1 3) FUSED BASAL LAMINA 4) CAP ENDOTHELIUM
- What are "HEART FAILURE CELLS"?
- Phagocytosed RBC's that have leaked into alveolar sacs in heart failure. Macrophages break Hb into hemosiderin (yellow pigment) which is coughed up
- Pulmonary Arterial System vs Bronchial Artery System
- PAS 1) LOW P SYSTEM 2) THIN WALLED, LARGE DIAMETER, MUSCULO-ELASTIC 2) UNOXY BLOOD -->OXY BLOOD BAS 1) HIGH P SYSTEM 2) OXY BLOOD (from aorta) --> UNOXY BLOOD (supply lung tissue with oxy)
- 2 Paths of Lymphatic Drainage in Lungs
- 1) Deep path follows air passages to hilum 2) Surface of lung just deep the visceral pleura
- Major route of exit of liquid in pleural space
- PARIETAL PLEURA LYMPHATICS
- If a person is stabbed in the chest where it pierces the lung pleura, which pleura contributes to pain perception?
- VISCERAL PLEURA DO NOT CONTAIN SENSORY N. FIBERS PAIN INDICATES INVOLVEMENT OF PARIETAL PLEURA