ANAT2241 Respiratory System

From Embryology
ANAT2241 This practical support page content is not part of the virtual science practical class and provides additional information for student self-directed learning purposes. 2018 - Moodle ANAT2241 | Virtual slides

General Objective

Respiratory tree

To know the histological and cytological components of the conducting and respiratory portions of the respiratory system.

Specific Objectives

  1. To know the cytology of the mucosa of the nasal cavity and upper respiratory tract.
  2. To know the structure of the trachea and extrapulmonary bronchi.
  3. To know the microanatomy of the lung and histological features of intrapulmonary bronchi, bronchioles, terminal bronchioles and respiratory bronchioles.
  4. To know alveolar ducts and alveoli, and the ultrastructure of their walls.
  5. To know the structure and ultrastructure of olfactory epithelium.

Learning activities

Examine the following virtual slides, and in your course manual identify, draw and label the following structures and note their function:

Virtual Slides: Respiratory System


Nasal Respiratory

Respiratory histology 12.jpg Respiratory histology 11.jpg
Nasal respiratory epithelium (inferior concha) Nasal respiratory epithelium (detail)
Respiratory histology 13.jpg Respiratory histology 14.jpg
Nasal cavity olfactory Nasal cavity olfactory (detail)

Larynx

Virtual Slide - Larynx (annotated)


Larynx Anatomy

Gray0954.jpgGray0956.jpg

Trachea

Hyaline cartilage 03.jpg Hyaline cartilage 04.jpg


Respiratory histology 05.jpg Respiratory histology 06.jpg

Bronchiole

Respiratory histology 01.jpg Respiratory histology 09.jpg

Lung

Lung secondary lobule 01.jpg Alveolar-sac-01.jpg
  • Terminal bronchioles - last generation of conducting airways (no alveoli) with a layer smooth muscle in the walls.
  • Respiratory bronchioles - splits into several alveolar ducts and have some alveoli along the walls.
  • Alveolar ducts - terminate in alveolar sacs and individual alveoli.
Respiratory histology 08.jpg

Respiratory histology 08.jpg Respiratory histology 07.jpg

Respiratory histology 02.jpg Respiratory histology 03.jpg Respiratory histology 04.jpg Respiratory histology 10.jpg
Alveolar Duct Alveoli Alveoli Elastin Lung Reticular Fibres

Electron Micrograph

Respiratory Epithelium EM1

Respiratory Epithelium EM01b.jpg

 ‎‎Mobile | Desktop | Original

EM Slides
Respiratory Epithelium EM2

Respiratory Epithelium EM02b.jpg

 ‎‎Mobile | Desktop | Original

EM Slides
Respiratory Epithelium SEM1

RespiratoryEpitheliumSEM01-icon.jpg

 ‎‎Mobile | Desktop | Original

EM Slides
Respiratory Cilia EM4

RespiratoryEpitheliumEM04-icon.jpg

 ‎‎Mobile | Desktop | Original

EM Slides
Respiratory Alveolus EM5

Mouse Alveolus EM01-icon.jpg

 ‎‎Mobile | Desktop | Original

EM Slides

Gallery


Respiratory Histology: Bronchiole | Alveolar Duct | Alveoli | 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


Developmental

Fetal Respiratory: late canalicular | unlabeled late canalicular | Hyaline cartilage | Respiratory Histology


Course Links

Histology 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 | ANAT2241 Support | Histology | Histology Stains | Embryology Glossary
Common Histology Stains  
Histology Stains - Common Stains and Their Reactions
Stain
Nucleus
Cytoplasm
Collagen
RBCs
Other
Haematoxylin
blue
-
-
-
mucins - light blue
Eosin
-
pink
pale pink
bright red
colloid - pinkmuscle - red
Iron Haematoxylin
blue/black
-
-
-
Van Gieson
-
brown/yellow
red
yellow
muscle: yellow/browncartilage - pink
Verhoeff's Elastin
black
-
-
-
elastic fibres - black
Tartrazine
-
yellow
yellow
yellow
Silver Impregnation
-
-
grey/brown
-
reticular fibres - black
Methyl Green
dark green
light green
light green
green
Nuclear Fast Red
red
pink
pink
pink
Gomori's Trichrome
purple/red
purple
green
red
keratin - redmuscle - purple/red
Heidenhain's Azan
red
purple/red
deep blue
red
muscle - red
Osmium Tetroxide
-
-
brown
brown
myelin, lipids - black
Alcian Blue
-
-
-
-
mucins, - blue
Periodic acid-Schiff (PAS)
-
-
pink
-
mucins, glycogen, glycocalyx - magenta
Phosphotungstic Acid-Hematoxylin (PTAH)
blue
-
red
blue
muscle bands - blue
Masson's Trichrome
blue/black
red
green/blue
red
cartilage, mucins - blue or green; muscle - red
Luxol Fast Blue
-
-
-
variable
myelin - blue
Aldehyde Fuchsin
-
-
-
-
elastic fibres, mast cells - deep purple
Light Green
-
-
light green
-
Gallocyanin
dark blue
-
-
-
nucleic acids, Nissl granules - dark blue
Romanowsky (e.g. Leishman's)
blue
pink
acidophils - red, basophils - blue, azurophilic - purple
Aldehyde Pararosanilin elastic fibres - purple
Haematoxylin and Eosin
One of the most common staining techniques in pathology and histology. Acronym "H and E" stain. (H&E, HE).


Haematoxylin
  • Stains nuclei blue to dark-blue.
  • Stains the matrix of hyaline cartilage, myxomatous, and mucoid material pale blue.
  • Stains myelin weakly but is not noticeable if combined with eosin stain.
  • combined with Orange G (H & Or. G.) instead of eosin, specifically stains the granules of acidophilic cells of the adenohypophysis (anterior pituitary).
Eosin
  • Stains cytoplasm pink to red; red blood cells are also bright red.
  • Common counterstain to hematoxylin.
  • Stain intensity varies with the formula as well as the fixative.

Virtual slides

Moodle - ANAT2241 - 2018

Pages require student zpass to access.

The Virtual Microscope | Covering and Lining Epithelia | Glandular Epithelia | Connective Tissue Components | Connective Tissue Types | Bone, Bone Formation and Joints | Blood | Muscle Tissue | Nervous Tissue | Cardiovascular System | Respiratory System | Integumentary System (skin) | Liver, Gallbladder, and Pancreas | Gastro-Intestinal System I | Gastro-Intestinal System II | Lymphatic Tissue and Immune System | Endocrine System | Urinary System | Female Reproductive System | Male Reproductive System | Special Sense Organ: The Eye


Practical support

Pages can be accessed from any internet connected computer.

ANAT2241 Support Links: The Virtual Microscope | Covering and Lining Epithelia | Glandular Epithelia | CT Components | CT Types | Bone, Bone Formation and Joints | Blood | Muscle | Nervous | Cardiovascular | Respiratory | Integumentary | GIT Organs | GIT 1 | GIT 2 | Lymphatic and Immune | Endocrine | Urinary | Female Reproductive | Male Reproductive | Eye | Histology Stains | Histology Drawings | Practicals Health and Safety 2013 | Moodle - 2018


ANAT2241 This practical support page content is not part of the science practical class and provides only background information for student self-directed learning purposes.


Cite this page: Hill, M.A. (2018, June 19) Embryology ANAT2241 Respiratory System. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/ANAT2241_Respiratory_System

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© Dr Mark Hill 2018, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G