PERIPHERAL NERVOUS SYSTEM (SIVA) (FUNCTION (sensory neuron (take sensory…
PERIPHERAL NERVOUS SYSTEM (SIVA)
Consists of nerve and ganglia outside the brain and spinal cord
Unlike CNS, PNS is not protected by skull, spine or blood brain barrier.
PNS is divided into
somatic nervous nervous system
autonomic nervous system
sympathetic nervous system
parasympathetic nervous system
Connects CNS to the organs
alllow brains and spinal cord to receive and send information.
take sensory information and send to brain and spinal cord.
fight or flight state
carry information from brain and spinal cord to muscle fibres throughout the body. (physical action)
rest and digest state.
DISEASE AND DISORDER
thoracic outlet syndrome
exposure to poisons
infection (virus, HIV)
Trauma or pressure on nerves