Nervous System

perceptions, behaviours, memories and initiates all voluntary movements

Central and Peripheral

Sensory and motor impulses (PNS) and CNS is integration

to enter

to exit

something that will bring change

bundle of axons surrounds by connective tissue and blood vessels in the PNS

bundle of axons surrounds by connective tissue and blood vessels in the CNS

support brace and anchor (BBB) and chemical environment for nerve imulses

form and maintain myelin sheath around axons for conduction and protection

function as phagocytes

help produce CSF

wrap around axon and form a lipid/protein layer. electrically insulate axons to increase speed of nerve impulse conduction

Neuroglia cell bodies, dendrites, unmyelinated axons, neuroglia.

mainly myelinated axons

ability to change

nuclei to control vital functions (cardiovascular and respiratory) and nuclei that control non vitals like coughing, sneezing, hiccuping and swallowing. bulge where axons cross over

ascending and descending axons, axons that connect left and right hemispheres of cerebellum and cerebellum to cerebral cortex

the reflex centre for visual activities and startle reflex. produces dopamine. substantia nigra to basal nuclei

produces melatonin and filters stimulants

smooth and coordinate contractions of skeletal muscle. regulates posture and balance coordination of skilled movement communicates with motor areas of cerebral cortex

major relay station for sensory impulses to cerebral cortex

Regulate homeostasis control autonomic nervous system produces hormones and control pituitary gland main link between nervous and endocrine systems regulates body temperature regulate eating and drinking regulate circadian rhythm

contain pineal gland which produces melatonin