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Related Concept Videos

Muscles for Facial Expressions01:14

Muscles for Facial Expressions

The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
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Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
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Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves, with the first six being essential in sensory perception, motor control, and autonomic functions related to the head and neck.
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Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
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Related Experiment Video

Updated: Jun 13, 2026

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
19:53

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer

Published on: March 1, 2015

[Idiopathic facial palsy].

M Grosheva1, D Beutner, G F Volk

  • 1Klinik und Poliklinik für HNO-Heilkunde, Kopf- und Halschirurgie der Universitätsklinik Köln, Kerpener Strasse 62, 50937, Köln, Deutschland. maria.grosheva@uk-koeln.de

HNO
|May 11, 2010
PubMed
Summary

Idiopathic facial palsy (Bell's palsy) is a sudden facial nerve weakness of unknown cause. Steroids offer over 90% recovery, but research is needed for severe cases.

Area of Science:

  • Neurology
  • Ophthalmology
  • Otolaryngology

Context:

  • Idiopathic facial palsy (IFP), also known as Bell's palsy, presents as acute, unilateral peripheral facial nerve paresis of unknown etiology.
  • Potential triggers include Herpes simplex virus infection or reactivation, necessitating exclusion of other conditions like Herpes zoster, Lyme disease, and malignancy.
  • Diagnosis relies on excluding other causes, with malignancy exclusion crucial if recovery is incomplete after 6-12 months.

Purpose:

  • To review the current understanding of idiopathic facial palsy, including its diagnosis, prognosis, and treatment.
  • To highlight the effectiveness of steroid therapy and spontaneous recovery rates.
  • To identify the need for improved diagnostic methods for spontaneous recovery and further clinical trials for severe IFP cases.

Summary:

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Facial Nerve Surgery in the Rat Model to Study Axonal Inhibition and Regeneration
05:04

Facial Nerve Surgery in the Rat Model to Study Axonal Inhibition and Regeneration

Published on: May 5, 2020

Related Experiment Videos

Last Updated: Jun 13, 2026

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
19:53

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer

Published on: March 1, 2015

Facial Nerve Surgery in the Rat Model to Study Axonal Inhibition and Regeneration
05:04

Facial Nerve Surgery in the Rat Model to Study Axonal Inhibition and Regeneration

Published on: May 5, 2020

  • Bell's palsy diagnosis involves excluding neurological diseases, Herpes zoster, Lyme disease, and malignancy.
  • Prognostic indicators for defective healing include paresis severity and electromyography findings.
  • Steroids are the primary evidence-based treatment, achieving >90% recovery rates, while spontaneous recovery occurs in ~80% of cases.

Impact:

  • Steroid therapy demonstrates high efficacy in treating Bell's palsy, with >90% recovery rates.
  • Further research is essential to identify patients likely to recover spontaneously and to develop effective treatments for severe IFP.
  • Clinical trials are urgently needed to explore additional therapies, such as antiviral drugs, for patients with severe facial nerve paralysis.