©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
CDIS 421: Neuroscience Fundamentals
for Communication Sciences and
Disorders Exam Q&A 100% Pass
sagittal plane - ✔✔a vertical plane that divides the body into right and left
parts
horizontal plane - ✔✔a flat crosswise plane, such as the horizon
2 parts of the nervous system - ✔✔central and peripheral
CNS is comprised of - ✔✔brain and spinal cord
coronal plane - ✔✔front and back
Dorsal - ✔✔toward the back (includes posterior spinal cord, superior
cerebrum)
Ventral - ✔✔Toward the belly (includes inferior cerebrum, anterior spinal
cord)
Caudal - ✔✔toward the tail (includes posterior cerebrum, inferior spinal
cord)
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
Rostral - ✔✔toward the forehead or nose (includes superior spinal cord,
anterior cerebrum)
2 types of cells in the nervous system - ✔✔neurons and glial cells
Neuron - ✔✔a cell of the nervous system; made for signaling and
communication
Dendrites &/ cell body/soma - ✔✔where neurons receive signals
Axon - ✔✔transmits information to other neurons, muscles, or glands
Reflex - ✔✔an involuntary response to a stimulus (minimally includes
sensory/afferent neuron and a motor/efferent neuron)
Myelin - ✔✔a fatty substance that helps insulate neurons (specifically
axons) and speeds the transmission of nerve impulses: white appearance
Microglia - ✔✔consume harmful substances
Astrocytes - ✔✔form blood brain barrier
Oligodendroglia - ✔✔glial cells in the CNS that myelinate axons
Schwann cells - ✔✔glial cells in the PNS that myelinate axons
-70mV to -65mV - ✔✔voltage of resting membrane potential
+50mV - ✔✔voltage of action potential
axon hillock - ✔✔where action potentials are initiated
CDIS 421: Neuroscience Fundamentals
for Communication Sciences and
Disorders Exam Q&A 100% Pass
sagittal plane - ✔✔a vertical plane that divides the body into right and left
parts
horizontal plane - ✔✔a flat crosswise plane, such as the horizon
2 parts of the nervous system - ✔✔central and peripheral
CNS is comprised of - ✔✔brain and spinal cord
coronal plane - ✔✔front and back
Dorsal - ✔✔toward the back (includes posterior spinal cord, superior
cerebrum)
Ventral - ✔✔Toward the belly (includes inferior cerebrum, anterior spinal
cord)
Caudal - ✔✔toward the tail (includes posterior cerebrum, inferior spinal
cord)
, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
Rostral - ✔✔toward the forehead or nose (includes superior spinal cord,
anterior cerebrum)
2 types of cells in the nervous system - ✔✔neurons and glial cells
Neuron - ✔✔a cell of the nervous system; made for signaling and
communication
Dendrites &/ cell body/soma - ✔✔where neurons receive signals
Axon - ✔✔transmits information to other neurons, muscles, or glands
Reflex - ✔✔an involuntary response to a stimulus (minimally includes
sensory/afferent neuron and a motor/efferent neuron)
Myelin - ✔✔a fatty substance that helps insulate neurons (specifically
axons) and speeds the transmission of nerve impulses: white appearance
Microglia - ✔✔consume harmful substances
Astrocytes - ✔✔form blood brain barrier
Oligodendroglia - ✔✔glial cells in the CNS that myelinate axons
Schwann cells - ✔✔glial cells in the PNS that myelinate axons
-70mV to -65mV - ✔✔voltage of resting membrane potential
+50mV - ✔✔voltage of action potential
axon hillock - ✔✔where action potentials are initiated
