The digestive tract, with the esophagus marked in red
View of the larynx from behind. The epiglottis is the structure at the top of the image.
The esophagus is constricted in three places.
Location of the epiglottis
A mass seen during an endoscopy and an ultrasound of the mass conducted during the endoscopy session.
A high rising epiglottis (with forward-facing surface being visible)
Cross-section of the larynx, with structures including the epiglottis labelled.
Cross-section of the larynx of a horse. The epiglottis here is shown as '2'.
Structures of the larynx as viewed during laryngoscopy. The leaf-like epiglottis is shown as number '3'. Other structures: 1=vocal folds, 2=vestibular fold, 3=epiglottis, 4=plica aryepiglottica, 5=arytenoid cartilage, 6=sinus piriformis, 7=dorsum of the tongue

During swallowing, the epiglottis tilts backwards to prevent food from going down the larynx and lungs.

- Esophagus

During swallowing, it closes to prevent aspiration of food into the lungs, forcing the swallowed liquids or food to go along the esophagus toward the stomach instead.

- Epiglottis
The digestive tract, with the esophagus marked in red

5 related topics

Alpha

Anatomy of the larynx, anterolateral view

Larynx

Organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration.

Organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration.

Anatomy of the larynx, anterolateral view
The basic parts of the human larynx.
Vocal cords abducted and adducted
Extrinsic laryngeal muscles
Image of endoscopy
Endoscopic image of an inflamed human larynx
Larynx. Deep dissection. Anterior view.
Larynx. Deep dissection. Posterior view.

It is situated just below where the tract of the pharynx splits into the trachea and the esophagus.

The cavity of the larynx extends from its triangle-shaped inlet, to the epiglottis, and to the circular outlet at the lower border of the cricoid cartilage, where it is continuous with the lumen of the trachea.

Conducting passages

Trachea

Cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.

Cartilaginous tube that connects the larynx to the bronchi of the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.

Conducting passages
240px
Lymph nodes of the trachea.
Tracheal diverticulum as seen on axial CT imaging
Tracheal system of dissected cockroach. The largest tracheae run across the width of the body of the cockroach and are horizontal in this image. Scale bar, 2 mm.
The tracheal system branches into progressively smaller tubes, here supplying the crop of the cockroach. Scale bar, 2 mm.
thumb|Cross section of a trachea and esophagus
The sternohyoid and sternothyroid muscles lie on top of the upper part of the trachea
The thyroid gland also lies on top of the trachea, and lies below the cricoid cartilage.
Cross-section
Cross-section of the trachea, with pseudostratified ciliated columnar epithelium and goblet cells labelled
Magnified cross-section of the cartilage of the trachea.
Trachea
Coronal section of larynx and upper part of trachea
alt=Trachea (mammal) cross-section high resolution|Trachea (mammal) cross-section high resolution
alt=Trachea (mammal) cross-section low resolution|Trachea (mammal) cross-section low resolution

The epiglottis closes the opening to the larynx during swallowing.

Behind the trachea, along its length, sits the oesophagus, followed by connective tissue and the vertebral column.

Head and inner neck

Pharynx

Head and inner neck
Upper respiratory system, with the nasopharynx, oropharynx and laryngopharynx labeled at left
Details of torus tubarius
Pharyngitis is the painful swelling of the throat. The oropharynx shown here is very inflamed and red.
An illustration of the pharyngeal jaws of a moray eel
Everted pharynx of Alitta virens (also known as Nereis virens), lateral view
Pharynx of the flatworm Prorhynchus fontinalis
Pharynx of the flatworm Platydemus manokwari visible as the worm feeds on a snail.
Longitudinal section through the roundworm Caenorhabditis elegans showing the position of the pharynx in the animal body.
Microscopic cross section through the pharynx of a larva from an unknown lamprey species.
Nose and nasal
Coronal section of right ear, showing auditory tube and levator veli palatini muscle
The entrance to the larynx, viewed from behind
Deep dissection of human larynx, pharynx and tongue seen from behind
The nasopharynx, oropharynx, and laryngopharynx or larynx can be seen clearly in this sagittal section of the head and neck.

The pharynx (plural: pharynges) is the part of the throat behind the mouth and nasal cavity, and above the oesophagus and trachea (the tubes going down to the stomach and the lungs).

The flap of cartilage called the epiglottis stops food from entering the larynx.

Sagittal view of mouth and pharynx

Swallowing

Sagittal view of mouth and pharynx
A pelican swallowing a fish

Swallowing, sometimes called deglutition in scientific contexts, is the process in the human or animal body that allows for a substance to pass from the mouth, to the pharynx, and into the esophagus, while shutting the epiglottis.

Taste buds are small structures present within the papillae of the tongue

Taste bud

Taste buds contain the taste receptor cells, which are also known as gustatory cells.

Taste buds contain the taste receptor cells, which are also known as gustatory cells.

Taste buds are small structures present within the papillae of the tongue

The taste receptors are located around the small structures known as papillae found on the upper surface of the tongue, soft palate, upper esophagus, the cheek, and epiglottis.