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Neuroanatomy Final Exam Questions and Answers 100% Solved
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Neuroanatomy Final Exam Questions and Answers 100% Solved __________ are bundles of axons moving with the CNS - fiber tracts List all the categories of fiber tracts - - spinal tract (ascending and descending) - association fibers (within hemispheres) - commissural fibers (btwn L and R hemisph...

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  • November 1, 2024
  • 20
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • Neuroanatomy
  • Neuroanatomy

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©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
Neuroanatomy Final Exam Questions

and Answers 100% Solved


__________ are bundles of axons moving with the CNS - ✔✔fiber tracts

List all the categories of fiber tracts - ✔✔- spinal tract (ascending and

descending)

- association fibers (within hemispheres)

- commissural fibers (btwn L and R hemispheres)

- projection fibers (ascending/ descending fibers w/in brain)

The lateral horn of the spinal cord is ONLY present in _______________- -

✔✔T1-L1 (sympathetic chain ganglion)

The ____________________ of the dorsal column is present above T7,

while _______________ is present throughout the spinal column. - ✔✔1.

fasciculus cuneatas

2. fasciculus gracilis



- FC = upper extremity --> does not need nerve fibers past T7

- FG = lower extremity

,©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
What are the 3 major divisions of the white matter in the spinal cord? - ✔✔-

dorsal column (ascending tracts)

- lateral column (ascending and descending)

- anterior column (ascending and descending)

Describe the blood supply distribution to the spinal cord. - ✔✔- posterior

spinal artery = dorsal column

- anterior spinal artery = anterior and lateral columns (presents w more

deficits and more common)

The ALS ascending tract is responsible for more ___________ sensations,

whereas the DCML ascending tract is responsible for more

_________________ sensations - ✔✔1. primitive (reflexive)

2. advanced

List the DCML tract sensations. - ✔✔- discriminative touch

- vibration

- proprioception

- light touch

List the ALS tract sensations. - ✔✔- pain

- temperature

- crude touch (pressure/ large surface area)

, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.
What is the spinocerebellar system responsible for? - ✔✔- unconscious

proprioception (limb position, joint angle, muscle tone and length)



- cannot be tested clinically

What is the pathway of the DCML tract? - ✔✔sensory info --> dorsal root

ganglion --> dorsal horn --> DCML tract --> medulla (fibers cross sides to

ML) --> VPL nucleus of thalamus --> anterior internal capsule --> S1 cortex

The __________ spinothalamic is responsible for pain and temperature. -

✔✔lateral

The ___________ spinothalamic is responsible for ______ and

____________ - ✔✔crude touch and firm pressure

What is the pathway of the ALS tract? - ✔✔sensory information --> dorsal

root ganglion --> dorsal horn --> ALS tract (fibers cross) --> medulla, pons,

midbrain --> VPL nucleus in thalamus --> anterior internal capsule --> S1

cortex

Where are the 1st, 2nd, and 3rd order neurons in the DCML Tract? - ✔✔1st

= sensory receptors to medulla

2nd = medulla to thalamus

3rd = thalamus to S1 cortex

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