The neuroanatomy is the branch of the Anatomie devoted to the description of the central Nervous system (Encéphale and Spinal-cord) and peripheral (rachidian roots, plexuses, nerves and cranial nerves).

A difficulty particular to the anatomical description of the nervous system lies in the fact that this body and in particular the Cerveau does not have an apparent structure because it is about a relatively homogeneous fabric made cells, Neuron S and cells gliale S, strongly connected the ones to the others. In fact, it is established today that there does not exist simple bond between morphology and function within this system. Progress of the neuroanatomy thus passes by the settling of methods increasingly finer of histological analysis of the properties of nervous fabrics, of their Connectivité and their Morphométrie.

General organization of the nervous system

The nervous system is divided into two parts:

• the central Nervous system including/understanding:

• the Brain consisted the Brain, the cerebral Trunk and the Cerebellum
• and the Spinal-cord.

• the peripheral Nervous system composed of rachidian nervous roots, from plexus, nerve-knots, and Nerf S. One distinguishes two types to him of nerves:

• the cranial nerves and spinaux
• vegetative or autonomous nerves, components of the vegetative or autonomous Nervous system, itself subdivided in two systems which are opposed most of the time: the systems parasympathetic sympathetic nerve and

The organization of the muscular system is studied with the Myologie. The driving Plaque belongs to the field of the Physiologie and the Histologie.

Anatomy of the brain

• Anatomy of the human brain

Anatomy of the cerebellum

• Anatomy of the human cerebellum

Anatomy of the cerebral trunk

The cerebral Tronc consists of three successive parts: the Mésencéphale, the bridge (Bridge of Varole), and the bulb (or medulla oblongata).

Anatomy of the spinal-cord

• Anatomy of the human spinal-cord

Anatomy of the lumbar plexus and axillaire

Organization of the nerves

The nerves of the shoulder result generally directly from the Plexus brachial:

• the circumflexe Nerve

The upper limb has four large nerves which divide the inervation:

• the median Nerve
• the Nerve musculocutané
• the ulnar Nerve
• the radial Nerve

Intercostaux nerves

Abdominal nerves

The nerves of the basin arrive directly of the lumbar plexus

The lower extremity depends on the innervation of three large nerves

• the femoral Nerf
• the obturating Nerf
• the ischiatic Nerf

The cranial nerves are born for more the share of the cerebral trunk and have each one a role or sensitive or driving or sensory and or vegetative different.

Anatomical organization of the various nervous ways

Driving ways

• the pyramidal Ways
• the Ways extrapyramidales

Sensitive ways

• the ways lemniscales
• ways extra-lemniscales

Sensory ways

• olfactive ways
• optical ways
• auditive ways
• gustatory ways

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