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neuro anatomy > 2.4 The Sections of the Spinal Cord > Flashcards

2.4 The Sections of the Spinal Cord Flashcards

1
Q

Where is the Gray Matter located in the Spinal Cord?

A

Deeply

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2
Q

Where is the White Matter located in the Spinal Cord?

A

Superficially

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3
Q

At what level does the Spinal Cord end in Adults?

A

L1 / L2

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4
Q

At what level does the Spinal Cord end in Children?

A

L3 / L4

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5
Q

Is the Dorsal part of the Spinal Cord Anterior or Posterior?

A

Posterior

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6
Q

Is the Ventral part of the Spinal Cord Anterior or Posterior?

A

Anterior

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7
Q

How does White Matter stain?

A

Darkly

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8
Q

How does Gray Matter stain?

A

Lightly

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9
Q

What are the features of the Cervical Spinal Cord Sections?

A
  1. A Wide, Oval shape
  2. Little Gray Matter
  3. Large amounts of White Matter
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10
Q

What are the features of the Thoracic Spinal Cord Sections?

A
  1. A Wide, Oval Shape

2. Lateral Horns present in the Gray Matter

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11
Q

What are the features of the Lumbar Spinal Cord Sections?

A
  1. Circular Shape
  2. Large amounts of Gray Matter
  3. Notable presence of White Matter
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12
Q

What are the features of the Sacral Spinal Cord Sections?

A
  1. Circular Shape
  2. Very Large Amounts of Gray Matter
  3. Very little White Matter
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13
Q

If the Spinal Cord ends at L1 / L2, how is there a Sacral region of the Spinal Cord?

A

The Sacral Section refers to the part of the Spinal Cord where the Sacral Spinal Nerves emerge

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14
Q

Which aspect of the Spinal Cord receives Sensory Information from the Peripheral Nervous System?

A

The Dorsal Horn

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15
Q

Which aspect of the Spinal Cord provides Motor innervation to the Peripheral Nervous System?

A

The Ventral Horn

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16
Q

Why does the size of the Ventral Gray Horn vary along the Spinal Cord?

A

As some areas may go to form a Plexus (e.g the Brachial or the Lumbar Plexus)

17
Q

What is the name of the hole in the middle of the Spinal Cord, and what does it contain?

A

The Central Canal contains Cerebrospinal Fluid

18
Q

Which White Matter Tract carries Motor Innervation from the Cerebral Cortex to the Lower Motor Neurons?

A

The Corticospinal Tract

19
Q

Where, on an image of the Spinal Cord, can the Corticospinal Tract be found?

A

The Anterior Part

20
Q

Where, on an image of the Spinal Cord, can the Spinothalmic Tract be found?

A
  1. The Lateral Parts

2. The Posterior Part

21
Q

Through which Spinothalamic Tract is Pain, Temperature, and Gross Touch communicated in?

A

The Lateral Spinothalamic Tract, after crossing over at the level of the Spinal Cord

22
Q

Through which Spinothalamic Tract is Proprioception, Vibration, and Fine Touch communicated in?

A

The Posterior Spinothalamic Tract, and crosses over in the Medial Lemniscus in the Brainstem

neuro anatomy (13 decks)

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