Biology / Unit 12 Bio 2849 short lesson, about 20 seconds
Cerebellum and Brainstem
Captions available
The idea
The cerebellum coordinates balance and motor learning; the brainstem connects brain to spinal cord and controls vital functions like breathing, heart rate, and alertness.
In practice
Descending motor pathways cross within the brainstem, so the left hemisphere controls the body's right side and vice versa.
Where people slip
Damage to the brainstem threatens survival directly, since it regulates functions the body cannot pause, unlike most cortical damage.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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