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NBS > Spinal CNS and Related Structures (23%) > Flashcards

Spinal CNS and Related Structures (23%) Flashcards

1
Q

What does the ectoderm give rise to

A

Notochord
Ectoderm
Neural Plate

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2
Q

The vertebra column is formed from

A

Sclerotome (mesoderm) (somite cells)

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3
Q

What does the notochord do

A

Induces ectoderm to form neuroectoderm

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4
Q

What does the ectoderm do

A

Forms neural plate

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5
Q

What does the neural plate do

A

forms neural groove which houses the spinal cord and brain vesiciles

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6
Q

What does the neural plate develop into

A 
Macrogilal cells
Oligodendrocytes
Astrocytes
Neurons
Ependymal Cells
Retinal Cells
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7
Q

What does the Ectoderm develop into

A

Foregut
Midgut
Hindgut
Allantosis

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8
Q

What does the foramen Ovale become

A

Fossa Ovalis (between interartrial spetum)

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9
Q

What does the ductus Arteriosus become

A

Ligamentum Areteriosum

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10
Q

What does the ductus Venosus become

A

Ligamnetum Venosum

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11
Q

What does the umbilical vein become

A

Ligamentum teres

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12
Q

What does the umbilical arteries become

A

Medial umbilical ligaments

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13
Q

What does the urachus become

A

Duct of Allantosis

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14
Q

What are Glioblast

A

Like “glue”

Gives rise to astrocytes and oligodendrosytes

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15
Q

What is the most numerous cell of the CNS

A

Astrocyte

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16
Q

What cell is numerous in the CNS and forms MYELIN aroound CNS

A

Oligodenocytes

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17
Q

What does the ependymal cell do

A

Line CNS

Ciliated, makes leaky barrier between CSF and CNS

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18
Q

What is another name for Microglia cells

A

Gitterzellen

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19
Q

What is the function for microglia

A

Macrophage

20
Q

what is the function of Neuroblast

A

Makes neurons

21
Q

What are the two macroglia

A

Astrocytes (BBB; active transport for glucose and filters)

Oligodendrocytes: Myelin

22
Q

The circle of willis goes anatomically around

A

Piturotary gland

Optic Chiasm

23
Q

Which two arteries supply the circle

A

Verterbal A

Internal Carotid a

24
Q

What areteries make the circle

A

Anterior and Posterio Cerebral

Anterior and Posterior Communicating

25
Q

what is the MC location for cerebral vascular accident

A

Middle Cerebral (carries more blood)

26
Q

What supplies blood to the posterior roots of the spinal cord

A

Posterolateral longitundinal Artery trunks

27
Q

What are the two strucutres of the Cerebral Cortex

A

Neocortex (90%)

Allocortex

28
Q

The brainstem contains important nuclei for these CN

A

III-XII

29
Q

What can occur from damage to the basal ganglia

A

Chorea

30
Q

How much CSF is in an adult

A

140-270ml

31
Q

What is the epidural filled with

A

Fat and viens

32
Q

What is the innermost layer of the neural tube

A

Ependymal cell

33
Q

What produces CSF

A

Choroid Plexus

34
Q

What resorbs CSF

A

Arachnoid Granulations

35
Q

How much CSF is in the ventricles

A

25ml

36
Q

The Bell Magendi Law

A

Dorsal: Sensory
Ventral: Motor

37
Q

What is the roof of the midbrain

A

Tectum

38
Q

What is the medial portion of the cerebellum

A

Vermis

39
Q

What is the paleocerebellar

A

Anteiror portion of cerebellum

General Muscle Tone

40
Q

What is the Neocerebella

A

Posterior Portion of Cerebellum

Coordination of skilled movements

41
Q

What function does the Archicerebellar have

A

Equlibrium

42
Q

What is the blood supply for the Cerebellumm

A

Branches of the vertebral and basilar arteries

43
Q

What are the cerebellar nuclei

A 
Fastigul
Globus
Emboliform
Dentate
Medial to Lateral, Small to Large
44
Q

What is the pahway betwwen the thalmus and cortex

A

through the internal capsule and corona radiate

45
Q

What is the primary Sensory Cortex

A

Postcentral Gyrus

46
Q

What is the primary Motor Cortex

A

Precentral gyrus

NBS (22 decks)

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