SH Practical - Respiratory: Difference between revisions
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==Gallery== | |||
<gallery> | |||
File:Respiratory histology 12.jpg|Nasal respiratory epithelium (inferior concha) | |||
File:Respiratory histology 11.jpg|Nasal respiratory epithelium (detail) | |||
File:Respiratory histology 13.jpg|Nasal cavity olfactory | |||
File:Respiratory histology 14.jpg|Nasal cavity olfactory (detail) | |||
File:Respiratory histology 05.jpg|Trachea 1 | |||
File:Respiratory histology 06.jpg|Trachea 2 | |||
File:Respiratory_histology_01.jpg|Bronchiole | |||
File:Respiratory histology 09.jpg|Respiratory bronchiole | |||
File:Respiratory_histology_02.jpg|Alveolar Duct | |||
File:Respiratory_histology_03.jpg|Alveoli | |||
File:Respiratory histology 04.jpg|Alveoli Elastin | |||
File:Respiratory histology 08.jpg|labeled lung | |||
File:Respiratory histology 07.jpg|unlabeled lung | |||
File:Respiratory histology 10.jpg|Lung reticular fibres | |||
</gallery> | |||
{{Respiratory_Histology}} | |||
Revision as of 09:20, 3 April 2013
Introduction
Current page provides further background information for Medicine phase 1 Society and Health Respiratory Histology Practical Virtual Slides. This page content is not part of the SH practical class.
- Virtual Slides: Respiratory Histology
- SH Links: Lymphatic Lecture | Lymphatics Practical Support | Respiratory Lecture | Respiratory Practical Support | Medicine
Upper Respiratory Tract - Nasal Cavity
Respiratory
Nasal respiratory epithelium (inferior concha) | Nasal respiratory epithelium (detail) |
Olfactory
Nasal cavity olfactory epithelium cells
- Olfactory cells
- Sustentacular cells - located mainly in the superficial cell layer of the epithelium (difficult to distinguish from olfactory cells).
- Basal cells - identified by their location.
Epithelium
|
Lamina Propria
|
Nasal cavity olfactory | Nasal cavity olfactory (detail) |
- Nasal Olfactory Histology: overview image | detail image | Smell Development | Histology | Histology Stains
Trachea
Mucosa - formed by epithelium and underlying lamina propria.
- respiratory epithelium - (pseudostratified columnar and ciliated) ciliated cells, goblet cells, brush cells, endocrine cells, surfactant-producing cells (Clara cells), serous cells, basal cells, basement membrane.
- lamina propria - loose connective tissue, many elastic fibres.
- elastic lamina - forming the border between the mucosa and submucosa is not visible in H&E stained slides.
Submucosa - connective tissue and submucosal glands.
Submucosal Glands
(muco-serous) serous (dark) and mucous (light) parts have different staining appearance.
- Mucous secretions - "slimy" (high viscosity) mucous acini cells appear "foamy" or "frothy" and poorly stained (light). nuclei dark and smaller than serous.
- Serous secretions - "watery" (low viscosity) serous acini cell apical cytoplasm is usually well-stained (dark). nuclei round to ovoid located in cell basal cytoplasm.
Cartilage
- perichondrium - surface of cartilage.
- tracheal cartilage - hyaline cartilage, 16 to 20 C-shaped cartilages.
- trachealis muscle - (smooth muscle) Not visible in this section, together with connective tissue fibres, join ends of the cartilages together.
Hyaline Cartilage Development
- forms from mesenchymal cells.
- precursor cells become rounded and form densely packed cellular masses, chondrification centres.
- chondroblasts - (cartilage-forming cells) begin secreting the extracellular matrix components of cartilage.
- extracellular matrix - ground substance (hyaluronan, chondroitin sulfates and keratan sulfate) and tropocollagen (polymerises into fine collagen fibres, not visible).
- Trachea Histology Links: Overview HE | Overview VG | Detail 1 HE Detail 2 HE | Respiratory Histology | Histology Stains | Histology
- Trachea Histology Links: Overview HE | Overview VG | Detail 1 HE Detail 2 HE | Respiratory Histology | Histology Stains | Histology
Bronchiole
Alveolar Ducts and Alveoli
Alveolar type I cells
|
Alveolar type II cells
|
Alveolar Duct | Alveoli | Alveoli Elastin | Lung Reticular Fibres |
Gallery
- Respiratory Histology: Bronchiole | Alveolar Duct | Alveoli | EM Alveoli septum | Alveoli Elastin | Trachea 1 | Trachea 2 | labeled lung | unlabeled lung | Respiratory Bronchiole | Lung Reticular Fibres | Nasal Inferior Concha | Nasal Respiratory Epithelium | Olfactory Region overview | Olfactory Region Epithelium | Histology Stains
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2024, April 26) Embryology SH Practical - Respiratory. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/SH_Practical_-_Respiratory
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G