Regional Anatomy of the Central Nervous System · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Mapping the control centre

Science · The Human Body · ages 19-20
Name ______________________   Date ____________

  1. What do the basal nuclei do?

    • Help start and smooth out movement
    • Relay all vision
    • Make spinal fluid

  2. Which region runs breathing and heart rate?

    • The cerebrum
    • The cerebellum
    • The brain stem

  3. What sits in the centre of the spinal cord?

    • White axon bundles
    • Grey matter full of cell bodies
    • The thalamus

  4. Why does each tract crossing place matter to a clinician?

    • It sets the reflex speed
    • It tells which side the loss appears on
    • It names the brain region

  5. A patient feels nothing in the legs but can still move them. Which lanes are hurt?

    • Cranial nerves
    • Descending motor lanes
    • Ascending sensory lanes

  6. Damage hits the ventral horn at one cord level. What fails?

    • Movement served from that level
    • Feeling across the whole body
    • Vision in one eye

  7. A patient cannot start movements smoothly but senses everything. Which region is suspect?

    • The brain stem
    • The dorsal horns
    • The basal nuclei

  8. A tight pattern of lost feeling plus kept movement still cannot hint at the damage site.

    Circle one:   True   False

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Answer key

For grown-ups. Fold this page away before handing over the rest.

Mapping the control centre W1-mt_S9f5cUS8NZ-s1

  1. Help start and smooth out movement · These deep clusters help start and smooth motion.
  2. The brain stem · The brain stem handles the automatic jobs like breathing and heart rate.
  3. Grey matter full of cell bodies · Grey cell bodies form the central butterfly, with white matter outside.
  4. It tells which side the loss appears on · Known lanes and crossings turn the side of loss into a location clue.
  5. Ascending sensory lanes · Lost feeling with kept movement blames the ascending sensory lanes.
  6. Movement served from that level · Ventral horns drive muscles, so their loss weakens served movement.
  7. The basal nuclei · Trouble starting and smoothing motion points to the basal nuclei.
  8. False · Known lanes turn each loss pattern into an address for the fault.
Worksheet · LightMySky