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24 items · Last updated Saturday 23rd May 2015

Vagus nerve

An edited version of my Friday Evening Discouse given to the Royal Institution on 11 April 2008. Abstract: The vagus nerves (cranial nerve X) connects our brainstem to the body, facilitating monitoring and control of many automatic functions; the vagus electrically links our gut, lungs and heart to the base of the brain in an evolutionarily-ancient circuit, similar between mammals and also seen in birds, reptiles, and amphibians. The vagus comprises a major part of the parasympathetic autonomic nervous system, contributing to the motor control of important physiological functions such as heart rate and gut motility. The vagus is also sensory, relaying protective visceral information leading to reflexes like cough and indication of lung volume. The vagus has been described as a neural component of the immune reflex. By monitoring changes in the level of control exerted by the vagus, apparent as beat by beat changes of heart rate, it is possible to indirectly view the effect of pharmaceuticals and disease on brainstem function and neural processes underlying consciousness. The paired vagus nerves of humans have different functions, and stimulation of the left vagus has been shown to be a therapeutic treatment for epilepsy, and may modulate the perception of pain.  
Chris Pomfrett
about 12 years ago

Circle of Willis - Isolated (Labeled)

Isolated Circle of Willis. Ventral.  
Health Education Assets Library
over 10 years ago

The spinal cord

Notes on the spinal cord and the neuro anatomy  
Philip Welsby
almost 10 years ago

The Heart

Summary of the embryology of the heart  
Philip Welsby
almost 10 years ago

Blood supply and venous drainage of the gastro-intestinal tract and liver

This is a short audio-visual presentation on the vascular anatomy of the GI tract  
Mr Raymond Buick
over 9 years ago

Slideshow On The Larynx

A computer-assisted learning package designed to guide you through the intricate anatomy of the larynx, its critical functions and key clinical points.  
Neelima Sudhakaran
over 9 years ago
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Arterial Schematic

The “Arterial Schematic” represents the intricate three-dimensional human arterial system in a highly simplified two-dimensional design reminiscent of the London Underground Map. Each “line” represents an artery within the body; a black circle marks a major vessel, whilst “stubs” stemming from the main lines represent the distal vasculature. The coloured “zones” represent the main divisions of the human body, for example; the yellow zone indicates the neck. The schematic was inspired by Henry Beck’s work on the first diagrammatic London Underground Map. His aim was to represent complex geographical distribution in a simple and accessible form. He achieved this aim by omitting swathes of information that had plagued previous designers’ versions. Beck’s approach was succinct yet produced a design that was immediately successful in clearly portraying to commuters how to traverse London most efficiently. The “Arterial Schematic” hopes to culminate this idea of communicating complex concepts in a concise manner, mirroring what is expected of medical professionals on a daily basis. The schematic is a prototype design intended to be part of a series of images that will diagrammatically represent the various systems of the human body. The prototype was inspired by a desire to teach anatomy via a fresh and engaging visual medium. Recent years have seen significant debate over reduced undergraduate anatomy teaching and its later consequences. The hope is that the “Arterial Schematic” and its sister diagrams will inspire students to learn anatomy and encourage them to further their knowledge via other sources. PLEASE NOTE: This image is available for purchase in print, please contact if interested. Please follow LFarmery on Twitter and considering sharing the Arterial Schematic on Facebook etc. Many Thanks.  
Dr. Luke Farmery
over 8 years ago
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Cranial Nerves - Anatomy, Clinical Signs and Study Tips

This is a teaching resource that aids the student in memorisation of the Cranial Nerves, their anatomical path and function. Additionally, it stimulates a clinical approach to the functions of the Cranial Nerves, with some 'not to be missed' signs.  
Thomas Lemon
over 8 years ago

Respiratory Notes

Document covering some key aspects of respiratory  
James Davis
over 8 years ago

A Brief Introduction to Neuro Anatomy: The Major Cord (part1)

The Major Cord: A very brief introduction to the anatomy of the spinal cord with points of clinical relevance.  
Lucas Brammar
about 8 years ago
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Comparison of muscle types

This is a Venn diagram which summarizes the differences and similarities between cardiac, skeletal and smooth muscle types.  
Jenna Sharpe
about 8 years ago
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Brachial Schematic

Please note the Brachial Schematic is available in print, please contact if interested and consider sharing the Brachial Schematic on Facebook etc. Many thanks. The Brachial Schematic is a 2-d visual representation of the Brachial Plexus. The Brachial Plexus is a network of nerves that supplies the upper limb. The illustration was inspired by the work of Henry Beck on the London Underground Map and also by the numerous illustrations already depicting the Brachial Plexus. This image is related to my Arterial Schematic and whilst that image has had far more success, it is hard to say which one of these images came first. I am particularly proud of the fact that the Brachial Plexus will be appearing in an adapted form in Edition 9 of the Oxford Handbook of Clinical Specialities.  
Dr. Luke Farmery
about 8 years ago

Foramina of the Skull (Visual mnemonic)

The skull has numerous holes (foramina) through which various cranial nerves, arteries, veins and other structures pass. To aid learning of these important foramina, I have created this visual mnemonic.  
Sunjay Parmar
almost 8 years ago
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Anatomical relations of the Middle ear (Visual mnemonic)

The Middle ear has a plethora of structures within and surrounding it. To aid learning of these important structures, I have created this visual mnemonic. Note: The view is seen from the Right Lateral Wall (i.e. Tympanic membrane removed to see middle ear interior).  
Sunjay Parmar
almost 8 years ago
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Triangles of the Neck (Visual mnemonic)

There are various triangles of the neck, largely divided by the sternocleidomastoid muscle to form anterior and posterior triangles. Some triangles are more 'important' that others, and this simplified visual mnemonic hopes to emphasises this.  
Sunjay Parmar
almost 8 years ago
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Pharyngeal Apparatus (Visual mnemonic)

The Pharyngeal apparatus refers to the development and function of the clefts, arches and pouches which contribute to form the major components of the head and neck. Understanding the derivatives of the clefts, arches & pouches is initially time-consuming, however it lays a strong foundation to understand the clinical relevance thereafter. Hopefully this visual mnemonic will allow you to memorise all the derivatives of the pharyngeal apparatus with ease.  
Sunjay Parmar
over 7 years ago
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Basal Ganglia Structure and Pathways

Quick poster I made regarding the pathways that cause and inhibit movement about the basal ganglia! This is my first contribution so hope you find it useful!  
Mahima Charan
over 7 years ago
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Nervous system development (Visual mnemonic)

The process of neurulation drives development of the system we use to help understand and interact with the world around us. Sometimes this process might stray from its chosen path due to internal/external factors, leading to unusual pathologies. Understanding neurulation can help us work out how things go wrong.  
Sunjay Parmar
over 7 years ago