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Related Concept Videos

Spinal Nerves: Plexus I01:22

Spinal Nerves: Plexus I

Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
Cranial Nerves: Types Part I01:14

Cranial Nerves: Types Part I

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.
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
Cranial Nerves: Types Part II01:22

Cranial Nerves: Types Part II

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. While the first six innervate the head and neck, the latter six nerves innervate the head and neck, as well as organs and tissues in the thoracic and abdominal cavities. They facilitate communication, expression, and autonomic control within the human body.
Facial Nerve (Cranial Nerve VII)
Cranial nerve VII, or the facial nerve,...
Cranial Nerves: Overview and Anatomy01:19

Cranial Nerves: Overview and Anatomy

The cranial nerves are an important part of the complex network of nerves in the human body. These nerves emerge directly from the brain and are responsible for transmitting essential information between the brain and various parts of the head and neck. There are 12 pairs of cranial nerves, systematically numbered using Roman numerals from I to XII, beginning from the anterior and moving to the posterior of the brain. Each cranial nerve is uniquely identified by names that reflect its function...
Cranial Part of Parasympathetic Division01:18

Cranial Part of Parasympathetic Division

The cranial part of the parasympathetic division plays a crucial role in regulating the visceral functions of the head and specific structures in the neck, thoracic, and abdominopelvic cavities. Preganglionic fibers of the parasympathetic division exit the brain through cranial nerves III (oculomotor), VII (facial), IX (glossopharyngeal), and X (vagus), delivering parasympathetic output to the respective visceral structures.
The vagus nerve (cranial nerve X) alone accounts for approximately 75...
Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...

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Related Experiment Video

Updated: Jun 10, 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

Accessory nerve palsies.

Adrian J Wills1, Guy V Sawle

  • 1Department of Neurology, Nottingham University Hospitals, Nottingham NG7 2UH, UK. adrian.wills@nuh.nhs.uk

Practical Neurology
|July 22, 2010
PubMed
Summary
This summary is machine-generated.

Accessory nerve palsies, often resulting from neck surgery, can lead to significant functional impairment. This review covers their causes, symptoms, and treatment options for better patient outcomes.

Related Experiment Videos

Last Updated: Jun 10, 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

Area of Science:

  • Neurosurgery
  • Anatomy
  • Clinical Medicine

Background:

  • Accessory nerve palsies are a known complication of surgeries in the neck's posterior triangle.
  • These palsies can result in substantial functional disability for patients.

Purpose of the Study:

  • To review the causes of accessory nerve palsies.
  • To summarize the associated symptoms and signs.
  • To discuss treatment options and their indications.

Main Methods:

  • Literature review of accessory nerve palsies.
  • Synthesis of information on etiology, clinical presentation, and management.

Main Results:

  • Identified surgical complications as a primary cause.
  • Detailed the characteristic symptoms and clinical signs.
  • Outlined various treatment modalities and their specific indications.

Conclusions:

  • Understanding the causes and symptoms is crucial for diagnosis.
  • Appropriate treatment selection can mitigate functional disability.
  • Further research may refine surgical techniques to prevent these injuries.