Exam 1 Flashcards
Multipolar Neurons
Bipolar Neurons
Unipolar Neurons
Choroid Plexus
Produces CSF
Obstructive Hydrocephalus
Progenitor Cells
Stem cells that give rise to cells in the brain
Where are Progenitor Cells established
Ventricular Zone (VZ) and Subventricular Zone (SV)
Radial Glia
Glia with fibers that grow radially outward from the ventricular zone to the surface of the cortex. Provide guidance for the neurons migrating outward during brain development
CNS
Brain and Spinal Cord
PNS
The part of the nervous system outside brain and spinal cord
Glia
Supporting cells of the nervous system, but have been starting to show they have many other functions too!
Astrocyte
Provides nutrients and other substances to neurons. Regulates chemical composition of extracellular fluid.
Microglia
smallest of glial cells
consume dying cells and debris (act as phagocytes)
inflammatory action of brain
Oligodendrocyte
Forms myelin sheath
Dorsal
Back
Ventral
Belly
Rostral (anterior)
Nose
Caudal (posterior)
Feet/tail
Lateral
Outward/ to the sides
Medial
Middle
Meninges
protective sheaths around brain and spinal cord
Sulcus
groove in the surface of the cerebral hemisphere
smaller than a fissure
Fissure
Major groove in the surface of the brain
Corpus Callosum
fiber bundle that connects the 2 cortical layers