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Related Concept Videos

Tongue01:01

Tongue

4.2K
The human tongue is a fascinating and complex organ, responsible for various essential functions such as swallowing, speech, and taste. It is also subject to various conditions and diseases. In this article, we delve into the anatomy of the tongue, its roles, and some common conditions that can affect it.
Anatomical Position in the Oral Cavity
The tongue is located within the oral cavity, also known as the mouth. It is attached to the floor of the mouth by a fold of mucous membrane called the...
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The Tongue and Taste Buds00:49

The Tongue and Taste Buds

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The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or contain the sensory taste (or gustatory) receptor cells (fungiform, circumvallate, and foliate papillae). Embedded within each taste-related papilla are the taste buds—clusters of 30 to 100 gustatory receptor cells.
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Psychosexual Stages of Personality: Oral01:16

Psychosexual Stages of Personality: Oral

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The oral stage is the initial phase of Sigmund Freud's theory of psychosexual development, occurring from birth to approximately 12 to 18 months. During this period, the infant's mouth serves as the primary source of pleasure, with actions such as sucking, chewing, biting, and drinking playing a crucial role in reducing tension. These activities are essential not only for nourishment but also for the infant's psychological and emotional satisfaction.
Weaning, typically occurring...
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Deglutition01:25

Deglutition

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Swallowing, otherwise known as deglutition, facilitates the transport of food from the mouth to the stomach. It is a multifaceted process that involves both the tongue and the muscles of the throat and esophagus. Saliva and mucus aid in this process, which takes approximately 4 to 8 seconds for semi-solid or solid food and around 1 second for liquids or very soft food.
Swallowing can be divided into three stages: the voluntary phase, the pharyngeal phase, and the esophageal phase. Although the...
7.7K
Teeth01:15

Teeth

2.2K
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
2.2K
Tip-of-the-Tongue Phenomenon01:10

Tip-of-the-Tongue Phenomenon

718
The tip-of-the-tongue (TOT) phenomenon is a cognitive experience characterized by a temporary inability to retrieve specific information from memory despite having a strong feeling of knowing the information. Although individuals cannot access the target word or detail, they frequently recall related elements, such as its initial letter, syllable count, or context. This partial retrieval often causes frustration, as one might recognize a familiar face or know that a name starts with a specific...
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Related Experiment Video

Updated: May 2, 2026

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue
06:59

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue

Published on: July 6, 2017

8.1K

Double tongues.

Zhaowei Meng1, Jian Tan, Jie Mu

  • 1From the Departments of *Nuclear Medicine, Tianjin Medical University General Hospital; †Department of Surgery, Tianjin Stomatological Hospital; and ‡Department of Pediatrics, Tianjin Medical University General Hospital, Tianjin, People's Republic of China.

Clinical Nuclear Medicine
|February 26, 2014
PubMed
Summary
This summary is machine-generated.

A rare "double tongue" mass in a child was diagnosed as aberrant salivary tissue, not ectopic thyroid. This highlights the importance of considering salivary tissue in the differential diagnosis of such presentations.

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Area of Science:

  • Pediatric Surgery
  • Head and Neck Pathology
  • Congenital Anomalies

Background:

  • A 1-year-old boy presented with a congenital oral mass causing dysphagia and a distinctive "double tongue" appearance.
  • The mass protruded from the mouth, mimicking a second tongue, a rare clinical sign.

Observation:

  • Preoperative evaluation included thyroid function tests and scintigraphy, which confirmed normal orthotopic thyroid function.
  • Scintigraphy ruled out an ectopic thyroid as the lesion showed no iodine uptake.

Findings:

  • Surgical resection revealed the mass to be composed of aberrant salivary tissues.
  • Histopathological examination confirmed the diagnosis of ectopic salivary gland tissue.

Implications:

  • This case underscores the necessity of including ectopic salivary tissues in the differential diagnosis of pediatric oral masses presenting as "double tongues."
  • Accurate differentiation between ectopic salivary and thyroid tissues is crucial for appropriate management and surgical planning.