Ecpi Unit 4 Exam Questions And Answers
What can be defined as
"gaps in the myelin sheath between the Schwann cells" ? Nodes of Ranvier
Neuroglia that forms myelin in the central nervous system (CNS): Oligodendrocyetes
Neurons that conduct impulses from the CNS to muscles or glands are motor neu...
"gaps in the myelin sheath between the Schwann cells" ? Nodes of Ranvier
Neuroglia that forms myelin in the central nervous system (CNS): Oligodendrocyetes
Neurons that conduct impulses from the CNS to muscles or glands are motor neurons
When the membrane potential becomes more negative due to leaking K+ ions causing the
membrane potential to go down to - 90mV, it is said to be ? Hyperpolarizing
Which of the following systems consists of the brain and spinal cord? central nervous
system
Convergent neurons Have impulses coming in from multiple presynaptic neurons
Neuroglia mainly responsible for forming scar tissue and part of the blood brain barrier in the
CNS: astrocytes
, Ecpi Unit 4 Exam Questions And Answers
This type of neuroglial cell will line the central canal of the spinal cord and ventricles of the
brain, help regulate the cerebral spinal fluid and are a type of cuboidal or
columnar cells? Ependyma or ependymal cells
Minimal strength of stimulus (voltage level) required to trigger an action potential:
threshold potential
Neuroglia that forms myelin in the peripheral nervous system (PNS): Schwann cells
The functional connection between two neurons is a synapse
Do neuron bodies regenerate? No
Neurons that have one axon and many dendrites multipolar
The hormone that prepares our bodies for emergency action (the "fight or flight" mode) is
epinephrine
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