Flashcards in Nervous System Deck (40)
What is the basic unit of the nervous system?
What are the 2 divisions of the nervous system?
Central Nervous System (CNS)
Peripheral Nervous System (PNS)
Chemical substances that are released into synapses to relay information are called what?
What is the protective covering over some nerve cells including parts of the spinal cord that acts as an electrical insulator?
Which cells of the nervous system are responsible for the formation of myelin?
Schwann cells (PNS)
What are the interruptions in myelin called that allows nerve impulses to travel quicker and more efficient?
Nodes of Ranvier
What is the clear, colorless ultrafiltrate that nourishes, cools, and cushions the CNS?
Cerebrospinal Fluid (CSF)
What are the 3 main divisions of the brain?
Which main division of the brain is the largest part?
What is the space between two neurons or a neuron and a receptor called?
What is the term used for inflammation of the root of a spinal nerve?
What are meninges?
Three-Layered membrane that lines the CNS
What is the division of the autonomic nervous system that is concerned with body functions under emergency or
What is a network of intersecting nerves called?
What type of neuron carries impulses away from the CNS and toward the muscles?
What is an automatic, involuntary response to change called?
What does analgesia mean?
What is the term used for inflammation of the gray matter of the spinal cord?
What does ataxia mean?
What are knotlike mass of neuron cell bodies in the peripheral nervous system called?
What is another term for depressed?
What is the term used for inflammation of the membranes surrounding the brain and spinal cord?
What is concious proprioceptive deficit commonly called?
What is the medical term for crossing?
What are small cavities in the brain called?
What is the term used for alert?
What does BAR stand for?
What is the term used for a deep state of unconciousness?
What does lethargy mean?