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Related Concept Videos

Phagocytosis00:41

Phagocytosis

64.7K
Cells pull particles inward and engulf them in spherical vesicles in an energy-requiring process called endocytosis. Phagocytosis (“cellular eating”) is one of three major types of endocytosis. Cells use phagocytosis to take in large objects—such as other cells (or their debris), bacteria, and even viruses.
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Phagocytosis00:41

Phagocytosis

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Cells pull particles inward and engulf them in spherical vesicles in an energy-requiring process called endocytosis. Phagocytosis ("cellular eating") is one of three major types of endocytosis. Cells use phagocytosis to take in large objects, such as other cells (or their debris), bacteria, and even viruses.
The objective of phagocytosis is often destruction. Cells use phagocytosis to eliminate unwelcome visitors, like pathogens (e.g., viruses and bacteria). Many immune system cells,...
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Pneumonia I: Introduction01:30

Pneumonia I: Introduction

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Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
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Acute Pharyngitis01:30

Acute Pharyngitis

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Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
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Phagocytosis of Apoptotic Cells01:17

Phagocytosis of Apoptotic Cells

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Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or  immature dendritic cells. Non-professional phagocytes such as  epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes. 
Normal cells contain receptors that prevent them from being recognized...
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Chronic Pharyngitis01:23

Chronic Pharyngitis

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Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
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Related Experiment Video

Updated: Apr 25, 2026

Time-lapse 3D Imaging of Phagocytosis by Mouse Macrophages
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Time-lapse 3D Imaging of Phagocytosis by Mouse Macrophages

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Phagophobia: a case report.

Chathurie Suraweera1, Raveen Hanwella, Varuni de Silva

  • 1University Psychological Medicine Unit, National Hospital of Sri Lanka, Colombo, Sri Lanka. dr.chathurie@gmail.com.

BMC Research Notes
|August 29, 2014
PubMed
Summary

Phagophobia, a rare swallowing disorder, can be successfully treated with cognitive behavioral techniques. This case highlights a psychological approach for managing this life-threatening condition when organic causes are excluded.

Area of Science:

  • Psychiatry
  • Gastroenterology

Background:

  • Phagophobia is a rare disorder with limited literature and no established treatments.
  • It presents as a life-threatening condition characterized by an intense fear of swallowing.

Observation:

  • A 25-year-old female presented with recurrent dysphagia, initially lasting a year and then a week of inability to swallow solids.
  • She exhibited behaviors like swallowing with water, small boluses, and avoidance of eating in public.
  • Psychological factors, including misconceptions about food and stress-related maladaptive coping, were identified.

Findings:

  • Organic causes for dysphagia were confidently excluded by the medical team.
  • The patient's symptoms were managed effectively using graded exposure and cognitive behavioral techniques.

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  • Cognitive behavioral techniques demonstrated success in treating phagophobia, despite the lack of defined treatment methods.
  • Implications:

    • This case underscores the importance of considering psychological causes for dysphagia, even when rare.
    • Cognitive behavioral therapy offers a viable and successful treatment option for phagophobia.
    • Further research into the psychological underpinnings and therapeutic strategies for phagophobia is warranted.