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Histology lab. #1
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Trachea
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Trachea (all 4 layer) Low magnification
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Trachea, 1- pseudostratified ciliated columnar epithelium, 2- goblet cells, 3- mucosa, 4- submucosal glands, 5- hyaline High magnification
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Trachea, 1- mucosa, 2- submucosal glands, 3- hyaline
High magnification
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Trachea, 1- Hyaline, 2- adventitia
High magnification
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What to mention about trachea in exam:
Pseudostratified ciliated columnar epithelium V.I Goblet cells Mucosa Submucosal glands Cartilage V.I Adventitia V.I
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How can you tell it’s a trachea? تجي سؤال مب بس للفهم
The Epithelium is pseudostratified ciliated columnar There’s a cartilage It has 4 layers
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Bronchi, bronchioles, alveoli
Lungs Bronchi, bronchioles, alveoli
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Lung tissue, Bronchus (bronchi)
Red arrow is pointing at the cartilage
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Lung tissue, Bronchus (bronchi)
Red arrow is pointing at the cartilage
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Lung tissue, Bronchus (bronchi)
Red arrow is pointing at the cartilage
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What to mention about bronchi in exam:
Existance of cartilage The inner bronchial folds
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Lung tissue, bronchiole
No cartilage present
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Lung tissue, bronchiole
No cartilage present
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Lung tissue, bronchiole
No cartilage present
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Lung tissue, bronchiole
No cartilage present
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Lung tissue, bronchiole
No cartilage present
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What to mention about bronchioles in exam:
No cartilage Bronchiolar folds Cuboidal cells in terminal bronchioles, and simple squamous in respiratory bronchioles
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Blank spaces surronded by thin alveolar septum
Lung tissue, Alveoli Blank spaces surronded by thin alveolar septum
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Blank spaces surronded by thin alveolar septum
Lung tissue, Alveoli Blank spaces surronded by thin alveolar septum
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What to mention about alveoli in exam:
Have thin septums, (the alveolar septum) Contain type 1 & 2 alveolar cells.
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Important to mention while naming the slide
Tell if the slide is for a trachea or a lung, then mention the part shown E.g: Lung tissue, Bronchioles Mention the epithelial tissue Most important thing to mention is the Pseudostratified ciliated columnar epithelium as it is a special characteristic of respiratory organs.
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