Lecture 4-5 Nervous System Flashcards
Where are ganglia found?
PNS
Four types of neuroglia
Astrocytes, microglia, ependymal cells, oligodendroglia
Most common neuroglial cell in gray matter, forms BBB
Astrocytes
In the brain, grey matter is on the…
outside
In the brain, with matter is on the….
Inside
What composes neurophil
(pink stuff btwn nuclei on microscopy)
Axons, dendrites, and astrocyte processes
What no neurons look like on microscopy?
Light purple, large, with small dark purple nucleus
What do astrocytes look like on microscopy
dark purple specks
Mesenchymal glial cells in charge of immune defense
Microglia
Glial cells that line the ventricles
Ependymal cells
The schwann cells of the brain, numerous glial cell in white matter
Oligodendroglia
Can oligodendrocytes of schwann cells myelinate multiple axons?
Oligodendrocytes
What are non-myelinated axons for and do they have schwann cells?
Yes/pain
Which neuroglial cell is the most identifyable?
ependymal cells
Most common glial cell in white matter?
Oligodendrocytes
Most common glial cell in gray matter
Astrocytes
Tumor of oligodendrocytes
oligodendroglioma
Tumor of astrocytes
Astrocytoma
What structure makes CSF?
Choroid plexus
Deepest meningeal layer
Pia mater
Middle meningeal layer
Arachnoid mater
Toughest and outermost meningeal layer
Dura mater
What are the grooves of the brain
Sulci
What are the ridges of the brain?
Gyri
Where are Purkinje cells found?
The cerebellum
What are the ganglia of the CNS?
Nuclei
In the spinal cord, the gray matter is on the ____ and the whit matter is on the _____
inside, outside
What cells line the central canal of the spinal cord?
Ependymal cells
Outgoing signals from the spinal cord are on which root?
ventral
Incoming signals to the spinal cord are on which root?
Dorsal
