Med-terminology
Nervous System
Nervous System
Combining form meaning "sheath"
What is Thec/o
Contral center for our whole system
What is "Central Nervous System"
Bundle of nerve cells or fibers
What is "Nerve"
An involuntary reaction to an external stimulus
What is a "Reflex"
States that the nerve impulse will never vary in strength; if nerve fiber carries impulse, it will be a strong one.
What is "All-or-None Law"
Combining form meaning "word/phrase"
What is Lex/o
Consist of Involuntary Smooth Muscle
What is "Autonomic Nervous System"
Star shaped cells; blood brain barrier
What is "Astrocytes"
Space between Dura mater and vertebra
What is "Epidural Space"
An Axon covered by myelin sheath; makes impulse travel quickly
What is "Myelinated Nerve fibers"
Combining form meaning "movement/order/coordination"
What is Tax/o
Consist of Voluntary Skeletal Muscles
What is "Somatic Nervous System"
Form Myelin sheath around neurons of PNS
What is "Schwann cells"
Area of gray matter in the spinal cord
What is "Horn"
Na+(sodium) and K+(potasium) pump pulls both ions back to resting potential
What is "Repolarization"
Suffix meaning "action"
What is -praxia
What Nervous System connects to our brain + spinal cord with the rest of our body?
What is "Peripheral Nervous System"
Live ventricles of the brain
What is "Ependymal cells"
Nerve cell bodies found outside the CNS
What is "Ganglia"
High concentration of positive Na+(sodium) on outside of cell and High consentration of negative K+(potasium) on inside of cell
What is "Resting Potential"
Suffix meaning "movement"
What is -kinesia/-kinesis/-kinetic
2 Subcategories of PNS (peripheral nervous system)
What is "Afferent and Efferent Peripheral Nervous System"
Form Myelin sheath on neurons of CNS
What is "Oligodendroglia"
The three layers of Meninges
What is "Dura mater/Arachnoid mater/ Pia mater"
Impulse is conducted over entire length of the axon; impulse travels more slowly
What is "Unmyelinated"