Nasal cavity and larynx histology


00:00 / 00:00



Nasal cavity and larynx histology

Organ system histology

Cardiovascular system

Cardiac muscle histology

Artery and vein histology

Arteriole, venule and capillary histology

Endocrine system

Pituitary gland histology

Pancreas histology

Thyroid and parathyroid gland histology

Adrenal gland histology

Eyes, ears, nose and throat

Eye and ear histology

Nasal cavity and larynx histology

Thyroid and parathyroid gland histology

Gastrointestinal system

Gallbladder histology

Esophagus histology

Stomach histology

Small intestine histology

Colon histology

Liver histology

Pancreas histology

Hematological system

Blood histology

Immune system

Thymus histology

Spleen histology

Lymph node histology

Integumentary system

Skin histology

Musculoskeletal system

Bone histology

Cartilage histology

Skeletal muscle histology

Nervous system

Central nervous system histology

Peripheral nervous system histology

Renal system

Ureter, bladder and urethra histology

Kidney histology

Reproductive system

Prostate gland histology

Penis histology

Testis, ductus deferens, and seminal vesicle histology

Mammary gland histology

Ovary histology

Fallopian tube and uterus histology

Cervix and vagina histology

Respiratory system

Nasal cavity and larynx histology

Trachea and bronchi histology

Bronchioles and alveoli histology


Content Reviewers

Rishi Desai, MD, MPH

Ghassan Tranesh, MD, MSC FCAP


Evan Debevec-McKenney

Tanner Marshall, MS

Justin Ling, MD, MS

The nasal cavity is separated into two spaces, or fossae, by the nasal septum.

The nasal septum can be seen along the midline.

The nasal turbinates project into the nasal cavity in order to help increase the total available surface area.

Both the paranasal sinuses, as well as the majority of the nasal cavity, are lined with respiratory mucosa.

Only the roof of the nasal cavity is lined with olfactory mucosa instead.

This image of a human’s nasal mucosa, at 10x magnification, was prepared with Alcian blue and Van Gieson stains.

If we zoom in, to 40x magnification, we can see that the epithelium consists of pseudostratified ciliated columnar cells, along with many goblet cells that can be easily identified in light blue, because of the Alcian Blue stain.

This epithelium is also referred to as respiratory epithelium and generally can be found in the conducting portions of the respiratory tract.

The supporting connective tissue called the lamina propria is deep to the epithelium and contains many blood vessels and seromucous glands. If we compare the respiratory epithelium to the olfactory epithelium, we can see that the olfactory epithelium also has pseudostratified columnar cells, but it’s significantly thicker and is composed of a combination of olfactory, sustentacular, and basal cells.

The surface of the olfactory epithelium is also lined with modified cilia that function as olfactory receptors, which allows the olfactory cells to sense smells.

Moving on to the larynx, this image is a low power, coronal section of the larynx.

There are two pairs of folds within the larynx, the upper folds are the vestibular folds (or false vocal cords), and the lower folds are the actual vocal folds, (or true vocal cords).

Between the folds on each side are narrow spaces simply called ventricles.

Each true vocal cord will need relatively large muscles in order to move the vocal cords for speech.


The nasal cavity is the hollow space in the head that is connected to the exterior of the body through the nostrils; and the larynx also known as the voicebox is a muscular organ located in the neck that is responsible for producing sound. The histology of the nasal cavity and larynx refers to the structure and function of the cells and tissues that make up these organs.

The nasal cavity is mainly lined with respiratory epithelium, which consists of pseudostratified ciliated columnar cells with goblet cells. But the roof of the nasal cavity will have olfactory epithelium instead, which has a significantly thicker epithelium with modified cilia that function as olfactory receptors.

The Larynx consists of two folds: the vestibular folds and the vocal folds. The vestibular folds are primarily respiratory epithelium and have a large number of seromucous glands; while the vocal folds have respiratory epithelium as well, and stratified squamous epithelium that covers the vocalis ligament.


Copyright © 2023 Elsevier, except certain content provided by third parties

Cookies are used by this site.

USMLE® is a joint program of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). COMLEX-USA® is a registered trademark of The National Board of Osteopathic Medical Examiners, Inc. NCLEX-RN® is a registered trademark of the National Council of State Boards of Nursing, Inc. Test names and other trademarks are the property of the respective trademark holders. None of the trademark holders are endorsed by nor affiliated with Osmosis or this website.