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Respiratory System

Respiratory Histology

Respiratory Histology

Alveolus

Alveoli are made of simple squamous epithelium

http://science.nhmccd.edu/biol/respiratory/alveoli

Alveolar Duct

with alveoli and respiratory bronchiole

http://cellbio.utmb.edu/microanatomy/

Respiratory Histology

Respiratory Histology

Alveoli

The alveoli are connected by interaveolar septum.

http://www.cedarville.edu/academics/sciencemath/

Alveoli

Individual alveolus surrounded by simple squamous epithelium

http://www.muhlenberg.edu/depts/biology/

Respiratory Histology

Respiratory Histology

Alveolar Duct

Showing the passage of air into the alveolus

http://www3.umdnj.edu/histsweb/lab10/lab10lung.html

Alveolus with alveolar type II cell (type II pneumocyte) that secretes surfactant and capillaries that form the blood-air barrier.

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Respiratory Histology

Respiratory Histolgy

Alveolar Duct

Showing the passage of air into the alveolus

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Alveolar Duct

showing the movement of air into the alveolus. The alveoli are supported by reticular fibers.

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Respiratory Histology Respiratory Histology

Alveoli with Terminal Bronchiole

Longitudinal Section

http://cellbio.utmb.edu/microanatomy/respiratory/lung.htm

Alveoli with Terminal Bronchiole

Longitudinal Section

http://w3.ouhsc.edu/histology/Text%20Sections/Respiratory.html

Respiratory Histology

Respiratory Histology

Terminal Bronchiole

cross section

http://w3.ouhsc.edu/histology/Text%20Sections/Respiratory.html

Bronchiole

cross section

http://www.siumed.edu/~dking2/crr/CR009b.htm

Respiratory Histology

Respiratory Histology

Terminal Bronchiole

Cross-section with pseudostratified epithelium surrounded by hyaline cartilage, smooth muscle and adventita

This is not a respiratory surface.

http://w3.ouhsc.edu/histology/Text%20Sections/Respiratory.html

Bronchiole

Pseudostratified epithelium surrounded by smooth muscle and adventita

This is not a respiratory surface.

 

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Respiratory Histology

Respiratory Histology

Trachea

The lamina propria contains lymphatic tissue. The tracheal cartilage forms the cartilage rings

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Trachea

Trachea with pseudostratified epithelium that contains goblet cells that secrete mucous

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Respiratory Histology

Respiratory Histology

Trachea

Trachea mucosa, submucosa, cartilage, and adventita

http://w3.ouhsc.edu/histology/Text%20Sections/Respiratory.html

Trachea

Trachea lined with ciliated pseudostratified epithelium

http://www.siumed.edu/~dking2/intro/CR006c.htm

Respiratory Histology

Respiratory Histology

http://www.deltagen.com/target/histologyatlas/

http://cats.med.uvm.edu/cats_teachingmod/histology/

Trachea and Esophagus

Cross-section. The trachea maintains its rigid structure because of the tracheal cartilage rings.

Respiratory Histology

Respiratory Histology

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Nasal Olfactory Region

With Bowmanís gland (ducts of the olfactory glands) and goblet cells for secreting mucous. The sustentacular (supportive cells) are located more superficially in the epithelium than the olfactory cells.

Respiratory Histology

Respiratory Histology

Nasal Cavity and Olfactory epithelium

 

 

http://www.lab.anhb.uwa.edu.au/mb140/CorePages/

Larynx

TF=true  vocal folds; SG= subglottis space; FF= false vocal folds; & V=ventricle of Morgani

http://www.allergies-ent.com/Advanced_larynx.htm

http://w3.ouhsc.edu/histology/Text%20Sections/Cartilage.html

http://w3.ouhsc.edu/histology/Text%20Sections/Cartilage.html

Epiglottis

Pseudostratified epithelium and lamina propria with underlying layer of elastic cartilage

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