N ERVOUS S YSTEM 2/4/16
W HAT ARE THE THREE MAIN FUNCTIONS OF THE NERVOUS SYSTEM ?
W HAT DOES YOUR SENSORY INPUT DO ?
W HAT H APPENS DURING INTEGRATION ? The information from sensory input is __________ by the _________ ___________ and the __________ what should be done about it.
T HE RESPONSE THAT OCCURS WHEN YOUR N ERVOUS SYSTEM ACTIVATES CERTAIN PARTS OF YOUR BODY IS KNOWN AS _________ _______.
N ERVOUS SYSTEM What are the two main parts?
N ERVOUS SYSTEM What organs are contained with the central nervous system (CNS)? What is its primary function?
N ERVOUS SYSTEM What organs are contained with the peripheral nervous system (PNS)? What is its primary function?
N ERVOUS S YSTEM How many directions does the PNS travel in? Why is that important? What is another term for the sensory division of the PNS? What mnemonic can help you remember the name? What is the role of this division?
N ERVOUS S YSTEM What is another name for the motor division of the PNS? What mnemonic can help you remember that? What is its function? What direction does it travel in? From what to what?
N ERVOUS S YSTEM What smaller divisions does the motor (efferent) division contain?
N ERVOUS S YSTEM Which division contains voluntary control? Why is that important? Which division contains involuntary control? What is a mnemonic to help you remember? Why is the function important?
N ERVOUS S YSTEM What two divisions does the autonomic nervous system contain?
N ERVOUS S YSTEM What is the function of the sympathetic nervous system? What is the function of the parasympathetic nervous system?
N ERVOUS S YSTEM O RGANIZATION Nervous System Central Nervous System Mission Control Peripheral Nervous System Both directions Sensory Nervous System afferent Motor Nervous System efferent Somatic Nervous System Voluntary Autonomic Nervous System Automatic Sympathetic Nervous System Excitability Parasympathetic Nervous System Calming
N ERVOUS S YSTEM A NATOMY What type of cells/tissue make up the nervous system? Are they lightly or densely packed? How much space is extracellular?
N EURONS
CNS G LIAL C ELLS Much more important that previously thought Make up how much of the mass of your brain? Outnumber neurons ____ to ____. Provide support, nutrition, insulation, and help with signal transmission in the nervous system
A STROCYTES They are the most ___________ & most ________. They anchor the ________ to their _________ _________. They govern the exchange of materials between neurons and capillaries
M ICROGLIAL C ELLS These are ____________ than astrocytes. What type of appearance do they have? What is their function?
E PENDYMAL CELLS Line the __________ in your brain and spinal cord Create, Secrete, and Circulate ________ fluid and fills those cavities and cushions those organs.
O LIGODENDROCYTES Wrap around ____________ This produces what?
PNS G LIAL C ELLS Schwann Cells Perform the function of the oligodendrocytes This means they wrap around _________ & form an insulating _________ __________. Satellite Cells Perform the astrocytes function, but in the periphery Therefore they __________ & ________ neuron cell bodies.