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NEUROLOGY > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

Anterior neuropore forms…

A

After 24 days

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2
Q

Initial closure of neural tube starts after…

A

21 days

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3
Q

Posterior neuropore forms after…

A

26 days

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4
Q

Rachischisis is developed because of…

A

Undifferentiated neuroectoderm

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5
Q

Meningocele

A

There is no bone and a sac with CSF is formed.
Risk of infection but spinal cord is functional.

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6
Q

Meningomyelocele

A

Like in meningocele but Spinal cord is out of the place, herniated with the sac.

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7
Q

CSF is always between…

A

Arachnoid and pia

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8
Q

In the spinal cord there is a lot of…

A

CSF

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9
Q

Denticulate ligament goes from … to …

A

Pia, arachnoid and dura.
It keeps the spinal cord in the centre.

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10
Q

Denticulate ligament function

A

Keep the spinal cord in the centre

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11
Q

Conus medularis

A

Terminal part of spinal cord

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12
Q

Filum terminale internum goes from…

A

Conus medularis till the end of the dural sac

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13
Q

Filum terminale external binds…

A

The end of the dural sac to the coccyx

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14
Q

Punción lumbar se hace en…

A

L4-L5, solo hay roots y mucho CSF. No hay riesgo de pinchar médula espinal.

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15
Q

There is enlargement of the spinal cord at … levels

A

Cervical and lumbar
(We need more neurons to control the muscles in those regions).

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16
Q

Lateral horn in grey matter is found in … levels

A

T1-L2

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17
Q

Rexed laminate is a … classification of grey matter

A

Histological

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18
Q

Laminae VII

A

Lateral

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19
Q

Laminae I to VI

A

Posterior

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20
Q

Laminae VIII and IX

A

Anterior

21
Q

White matter is divided into…

A

Anterior funiculus, Lateral funiculus and Posterior funiculus

22
Q

C1 exits…

A

Between occipital bone and atlas.

23
Q

C2 exits above…

A

2nd vertebral

24
Q

C8 exits between…

A

C7 and T1

25
Q

C7 exits above…

A

C7

26
Q

T1 exits…

A

Below T1

27
Q

T2 exits…

A

Below T2

28
Q

In the lumbar disc, between L5 and S1, if the herniation is slightly posterior, it can damage…. If not it would damage…

A

S1, L5

29
Q

X refers to the…

A

Centromedial region of the spinal cord

30
Q

Nucleus dorsal/Clarke’s column are just found between…

A

T1-L3
They receive sensory info and send it to the cerebellum

31
Q

In the intermediolateral cell column between T1 and L2 we find…

A

Sympathetic preganglionic neurons

32
Q

In the intermediolateral cell column between S2 and S4 we find…

A

Parasympathetic preganglionic neurons

33
Q
A

Huge amount of white matter, no lateral horn, oval form: cervical region

34
Q

Posterior part of the leg is…

A

S1

35
Q

Lateral part of the leg is…

A

L5

36
Q

Propioception and vibration…

A

Posterior column system (sensory)

37
Q

For the posterior sensory column system…

A

The axon of the sensory neuron goes to the posterior part of the spinal cord and it then goes up, no synapses, the spinal cord is like a tube.
It also has some collateral roots that will go to the cerebellum or to form reflexes
IT DOES NOT CROSS IN THE SPINAL CORD, IT CROSSES LATER

38
Q

In the anterolateral sensory system…

A

There is a synapse in the posterior horn, the axon of the second neuron will cross and go to the controlateral side.
IT CROSSES IN THE SPINAL CORD (at the same spinal level)

39
Q

Information going to the cerebellum is…

A

IPSILATERAL

40
Q

Anterior neuropore will give rise to…., posterior neuropore will give rise to….

A

The encephalon, the spinal cord

41
Q

Basal lamina=
Alar lamina=
Marginal layer surrounding the Laminae=
Neural crest cells migrating towards the spinal cord=

A
  • anterior horn
  • posterior horn
  • white matter (axons)
    -dorsal root ganglia
42
Q

If the neural tube does not close, and the whole spinal cord is exposed to amniotic fluid, the baby will have…

A

RACHISCHISIS (incompatible with life)

43
Q

If we find differentiated nervous tissue and the body of the vertebrae but no lamina posteriorly, the spinal cord and meningeal sac protrude out of the spinal canal and the baby will have….

A

MENINGOMYELOCELE

44
Q

If the baby has no lamina of the vertebra but the spinal cord remain in the canal and only the meninges and the CSF protrude, the baby will have…

A

MENINGOCELE

45
Q

…. Manifests as a tuft of hair.

A

SPINA BIFIDA OCCULTA

46
Q

Spinal cord finishes at …

A

L1-L2

47
Q

All the bunch of caudal roots descend in towards their corresponding foramina to exit the spinal canal:

A

CAUDA EQUINA

48
Q

The end of the spinal canal forms a tip known as…

A

CONUS MEDULLARIS

NEUROLOGY (27 decks)

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