Chapter 4: Parts Of Nervous System Flashcards
Column
A set of cells perpendicular to the surface of the cortex similarity
Tract “projection”
A set of axons within the central nervous system
Nerve
Motor
sensory
Nerve- to Axons in periphery
Motor- from brain to muscles and glands
Sensory- to the brain
Ganglion
A cluster of neuron cell bodies usually OUTSIDE the central nervous system
Dorsal root ganglia
Bipolar cell bodies of primary sensory neurons, enter dorsal spinal cord
Gyrus
A ridge on the surface of the brain
Sulcus
Fold or groove
Gyrus vs sulcus
Gurus- ridge
Sulcus- groove
Fissure
A long deep sulcus
Gray matter
Cell bodies
White matter
Axon tracts
(Bundle of neurons)
Tract- set of axons in the CNS
Lamina
Row or layer of cell bodies separated from other cells
Grey matter vs white matter
Grey matter- cluster of cells
White matter-cluster of neurons(tract)
Both- pathways for neurotransmitter
neural pathway that serves to connect relatively distant areas of the brain or nervous system is usually a bundle of neurons, known collectively as
White matter
Afferents
the axons that relay sensory information into the central nervous system (i.e. the brain and the spinal cord).
Are ganglion found inside or outside the CNS?
Outside