Structure/Function Relationshipsin the Nervous System Flashcards Preview

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Flashcards in Structure/Function Relationshipsin the Nervous System Deck (13):
1

Name the 4 types of CNS nueroglia?

Astrocytes (protoplasmic and fibrous)
Oligodendrocytes
Microglia
Epindymal cells

2

What are the four key functions of the astrocytes?

Provide support
Maintain blood-brain-barrier
In embryology they regulate growth, migration and interconnections of neurones
Maintain environment in generation of nerve impulses

3

What are the functions of oligodendrocytes?

Myelin sheath formation of CNS

4

What are the functions of microglia?

Removal of cellular debris

5

What are the functions of epindymal cells?

Assist the circulation of CSF

6

Name the PNS neuroglia?

Schwann cells`

7

Name a type of commisural fibre?

Corpus callosum

8

Name a type of association fibre?

Superior longitudinal fasiculus (connects Broca's and Wernicke's area)

9

Name a type of efferent brain fibre?

Internal capsule (fibres from the cortex to the pons and medulla)

10

Name the six layers of the cortex?

Molecular layer
Outer granular layer
Outer pyramidal layer
Inner granular layer - Major input zone from external stimulus
Inner pyramidal layer - Major output zone
Multiform layer

11

Agranular is said to be associated to?

Motor cortex

12

Hypergranular is said to be associated to?

Sensory cortex

13

If there is a wide layer 4 and thin layer 5, what type of cortex is this?

Sensory