Nervous Tissue Flashcards
Internal and External Mesaxons
The internal and external points of fusion between the outer leaflets
(think spirals)
Intraperiod Lines
Electron Dense line created by extracellular space between adjacent outer leaflets
(thin)
Major Dense Lines
Electron Dense line created by cytoplasmic space remnant between adjacent inner leaflets
(thick)
Schmidt-Lanterman Clefts
Residual cytoplamic area within the major dense lines
Major Protein Zero
Homodimers locks together the outer leaflets in PNS
Myelin Basic Protein
Homodimers locks together the outer leaflets in CNS
Proteolipid Protein
Hold opposing cell membranes together in CNS
List the 4 components of the presynaptic membrane
Voltage-gate Ca channels
SNAPs
Vehicle Docking Proteins
Synapsin
What is the 1 component of the postsynaptic membrane
Neurotransmitter receptors
List the meninges superficial to deep
Bone Epidural Space Dura Mater Subdural Space Letomeninx: Arachnoid membrane, Arachnoid Villi and Pia Matter
Dura Matter
Tough Mother of dense fibrous connective tissue
Lines the cranial vault bone and serves periosteum
Receives blood from cerebral drainage as well as CSF from arachnoid Villi
Arachnoid
A meninx of delicate connective tissue
Allows passing of CSF from subarachnoid space to dural sinuses
Pia Matter
Delicate, tightly bound connective tissue
Choroid Plexus
Produces CSF
Fenestrated Capillaries
Cells linked by tight junctions
Ependyma
Held by Zonula Adherens
Astrocytes
Non-fenestrated capillaries
