Histology Guide virtual histology laboratory

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200 Photographs

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Histology Guide

Chapter 17 - Respiratory System

The respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide.

Nasal and Oral Cavity

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MH 134 Nasal Conchae and Palate

(nasal cavity, hard, and soft plates)

Epiglottis

The epiglottis is a flap that extends from the upper part of the larynx. It aids in closing the air conduction passageway during swallowing.

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MH 038-039 Epiglottis

(H&E / Verhoeff)

Larynx

The larynx is a tube-shaped organ in the neck that contains the vocal cords.

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MH 135 Larynx

Trachea

The trachea is a fibromuscular tube supported by hyaline cartilage that connects the pharynx and the larynx.

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MH 110 Trachea and Esophagus

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MH 136 Trachea

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MHS 222 Trachea

Adult Lung

The adult lungs are sponge-like organs and make up most of the lower-respiratory tract. Their most important function is providing oxygen and removing carbon dioxide from red blood cells within capillaries.

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MH 138 Lung

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MH 139 Lung

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MHS 205 Lung

Lung Fetal

The fetal lung is not capable of supporting respiration.

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MH 137 Lung Fetal