Nervous Part 2 Flashcards
What cells provide myelin sheath to axons within CNS?
Oliogodendrocytes
Oliogdendroctyes can wrap around __________ axons at once
Several
What can destroy oligodendroctyes that results in primary demyelination?
Viruses/toxins
What type of nucleus do oliogdendroctyes have?
Small and dark
What has the function of immunosurvelliance, immunoregulation, and reparative?
Microglia
Which cells innate immune response and identify pathogens and heal?
Microglia
What is the microglial cells that are globular and swollen after having phagocytized debris from injured cells?
Gitter cells
Which cells are derived from blood-borne monocyte?
Microglial cells
Which cells are residents of macrophage of CNS?
Microglial cells
What are microglial cells called during necrosis or inflammation activation?
Gitter cells
What are the counterpart of fibroblast?
Astrocytes
What matter are protoplasmic Astrocytes found?
Grey
What matter are fibrillar Astrocytes found?
White
Which cells proliferate in area of injury?
Astrocytes
What cells is GFAP staining associated with?
Astrocytes
What role do Astrocytes have in injury?
Healing
Which type of Astrocytes have microfilaments?
Fibrillar
What has the folllowing functions:
Transport of nutrients
Part of blood brain barrier
Antigen presentation
Astrocytes
What is composed of capillaries that line endothelium of spinal cord
Astrocytes
What origin do neurons, Astrocytes and oligodendroctyes have?
Ectodermal
What origin do Microglia and vascular endothelium have?
Mesodermal
Which origin is sensitive to hypoxia?
Ectodermal
Where are neurons distributed in PNS?
Ganglia
Where are neurons distributed in CNS?
Nuclei
