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Related Concept Videos

Tooth Anatomy01:21

Tooth Anatomy

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The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
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Changes in the environment of the early Earth drove the evolution of organisms. As prokaryotic organisms in the oceans began to photosynthesize, they produced oxygen. Eventually, oxygen saturated the oceans and entered the air, resulting in an increase in atmospheric oxygen concentration, known as the oxygen revolution approximately 2.3 billion years ago. Therefore, organisms that could use oxygen for cellular respiration had an advantage. More than 1.5 years ago, eukaryotic cells and...
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Anatomy of the Intestines01:23

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Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
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Ecological succession is influenced by the processes of facilitation, inhibition, and toleration. Facilitation occurs when early successional species create more favorable ecological conditions for subsequent species, such as enhanced nutrient, water, or light availability. In contrast, inhibition happens when early successional species create unfavorable ecological conditions for potential successive species, such as limiting resource availability. In some cases, later successional species...
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Hormonal Regulation01:40

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Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
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Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Related Experiment Video

Updated: Jan 27, 2026

2-Methacryloyloxyethyl Phosphorylcholine Polymer Treatment of Complete Dentures to Inhibit Denture Plaque Deposition
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Denture Misadventure: The Tooth About Your Colon.

Rajesh Essrani1, Patrick Hickey2, Hiral Shah2

  • 1Internal Medicine, Lehigh Valley Health Network, Allentown, USA.

Cureus
|March 27, 2019
PubMed
Summary

A healthy adult accidentally swallowed a dental bridge, which was later retrieved from the colon. This rare foreign body ingestion case highlights the importance of vigilance even in non-impaired individuals.

Keywords:
colonoscopyendoscopyforeign body

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Area of Science:

  • Gastroenterology
  • Internal Medicine
  • Medical Case Reports

Background:

  • Foreign body ingestion is uncommon in healthy adults, typically occurring in individuals with cognitive impairments.
  • Septic arthritis of the knee is a serious joint infection requiring prompt medical attention.

Observation:

  • A 48-year-old male with recurrent right knee septic arthritis presented for medical evaluation.
  • During his admission, the patient accidentally ingested his dental bridge.

Findings:

  • The ingested dental bridge was successfully retrieved from the proximal ascending colon using colonoscopy.
  • This case represents a rare instance of foreign body ingestion in an otherwise healthy adult.

Implications:

  • This case underscores the potential for foreign body ingestion even in individuals without known cognitive deficits.
  • It highlights the diagnostic and therapeutic role of colonoscopy in managing gastrointestinal foreign bodies.
  • The successful retrieval prevents potential complications associated with retained foreign objects in the digestive tract.