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FTM > Nerve tissues II > Flashcards

Nerve tissues II Flashcards

1
Q

What is the function of the choroid plexus

A

invaginated folds of Pia mater containing tufts of fenestrated capillaries and covered by simple cuboidal ependymal cells

Produces CSF in the lateral ventricles.

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2
Q

What is this structure

A

choroid plexus

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3
Q

What is the general organization of white matter?

A
  • Found in the inner core of brain tissue
  • Axons travel to parts of the CNS
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4
Q

What is the general organization of the gray matter?

A
  • Found in the outer layer
  • cell bodies arranged in layers
  • Nuclei-islands of grey matter that project into white matter tissue
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5
Q

What structure is this?

A

White Matter

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6
Q

What is this structure?

A

Gray matter

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7
Q

Describe the general structure of the cerebral cortex.

A
  • Has 6 grey matter layers
  • contains afferent and efferent fibers
  • Main cell type is Pyramidal cell
    • Layer 3 has large pyramidal cells
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8
Q

What is gray matter layer I

A

Molecular level

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9
Q

What is gray matter layer II

A

External granular layer

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10
Q

What is gray matter layer III

A

External pyramidal cell layer

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11
Q

What is gray matter layer IV

A

Internal granular layer

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12
Q

What is gray matter layer V

A
  • Ganglionic layer
    • Internal Pyramidal cells
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13
Q

What is gray matter layer VI

A

Multiform cell layer

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14
Q

What is this structure?

A

Cerebral cortex

H&E stain

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15
Q

What is this structure

A

Cerebral cortex

luxol blue stain

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16
Q

What is Neuropil?

A
  • Meshwork of tissue in grey matter excluding the cell bodies
  • Comprised of dendritic and axonal processes and central glial cells
17
Q

Describe the structure of the cerebellar cortex

A
  • Grey Matter
    • Outer portion
    • cell bodies arranged in layers
  • White matter
    • Inner core
    • axon travel to other parts of the CNS
    • Axon forms tracts
18
Q

Identify this structure

A

Cerebellar cortex

19
Q

Identify the specified structure

A

Purkinje Fibers

20
Q

What is the specified structure?

A

Purkinje Cells

21
Q

General structure of gray and white matter in the spinal cord.

A

White matter on the outside, Gray matter on the inside

22
Q

The two types of gray matter in the spinal cord?

A

Dorsal horn and Ventral horn,

Upside down butterfly looking shape

23
Q

Dura Mater

A

Outer covering

Dense connective Tissue

Vascular

innervated

24
Q

Arachnoid Mater

A

Loose connective tissue

lined with simple squamous epithelium

Projects into the sinus to dain CSF into the Bloodstream

AVASCULAR

25
Q

Pia mater

A

Vascular loose connective tissue

lies directly on brain and spinal cord

Interact with epindymal cells to form choroid plexus

26
Q

Overview of Meninges(dura,aracnoid,and pia)

A
27
Q

Histology Overview of Meninges(dura,aracnoid,and pia)

A
28
Q

Histology(H&E) Overview of Meninges(dura,aracnoid,and pia)

A
29
Q

What is an Alpha Motor/Golgi nueron and where is it located?

A

Large cell with pale staining large nuclei

abundant nissl bodies

embedded in neuropil

  • Located in the ventral horn
30
Q

what is the structure that the arrow is pointing to?

A

Alpha motor neurons

31
Q

What is the function of Granule cells?

A

They carry excitatory signals to the cerebellum.

32
Q

Function of the blood brain barrier

A

Protect the CNS from imbalances in surrounding environment as well as electrolytes, hormones, metabolites disturbances

33
Q

Organization of Blood brain barrier

A
  • Continuous with capillaries
    • complex tight junctions between endothelial cells
    • continous basal lamina
    • no fenestrations(openings) in basal lamina
  • Foot process of Astrocytes

FTM (13 decks)

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