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CNS + PNS Question and answers verified to pass 2025/2026

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CNS + PNS Question and answers verified to pass 2025/2026 What makes up the PNS and CNS? - correct answer CNS = brain and spinal cord; integration and processes nervous information PNS = nerves and ganglia; send information to and receive information from CNS (plus some reflexes) nerves - correct answer Bundled collections of axons (aka nerve fibers) outside the CNS

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CNS + PNS Question and answers
verified to pass 2025/2026
What makes up the PNS and CNS? - correct answer ✔CNS = brain and spinal cord; integration and

processes nervous information



PNS = nerves and ganglia; send information to

and receive information from CNS (plus some

reflexes)



nerves - correct answer ✔Bundled collections of axons (aka nerve

fibers) outside the CNS



endoneurium (within) - correct answer ✔Each nerve fiber is enclosed in a CT

sheath



perineurium (around) - correct answer ✔A CT perineurium surrounds a group of fibers

(Called a fasciculus , single bundle = fassicle).



epineurium (very outside) - correct answer ✔The entire nerve is surrounded by epineurium

CT (also encloses blood vessels)



what makes up the central nervous system - correct answer ✔brain (receives and processes sensory
info) and spinal cord (connects brain and peripheral nervous system)

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