Nervous system

Relationship function Functional compartments of the nerve center The sensitive compartment, here comes the information from the receivers The engine compartment transmits the commands to the effectors The fundamental functions of the nervous organ Sensitive function Motor function Mental function in the cerebral hemispheres This separation of functions is artificial and schematic. Sensory and motor function are correlated, and mental function results from the integration of the first two.

Classification of the nervous system

1. Functionally
• Somatic nervous system = relationship - coordinates somatic motor activity and sensory-sensory activity. Retrieves exteroceptive and proprioceptive information.
• Vegetative nervous system - coordinates the action of the viscera and endocrine and exocrine glands. The endocrine system regulates metabolic functions. Get interoceptive information.
2. From a topographical point of view
• Central nervous system = NEVRAX = CEREBREO-SPINAL AXIS
• Peripheral nervous system

Spinal meninges

Both the spinal cord and the brain are lined by three protective and trophic connective membranes called the meninges. The spinal cords cover the spinal cord:

• dura mater it is the external fibrous conjunctival sheet, with a protective role.
• arachnoiditis, the thin, middle meningeal sheet is separated from the pia mater by the subarachnoid space, filled with cerebrospinal or cerebrospinal fluid.
• pia materit is the internal meningeal sheet, strongly vascularized, which adheres intimately to the surface of the spinal cord, ensuring its nourishment.

The connection between the central nervous system and the organs is made through NERVES:

• Peripherical nervous system with nerves, ganglia, and plexuses = braids of nerve fibers and blood vessels.
• Central nervous system
• Medullary
• Subcortical (brainstem, cerebellum, diencephalon)
• Cortical (cerebral hemispheres)