brainstem

Spinal cord junction

The brainstem is the stalk-like structure at the base of the brain that connects it to the spinal cord.

It controls fundamental involuntary functions—breathing, heart rate, blood pressure, sleep cycles, and consciousness.

Damage to the brainstem is often fatal or catastrophic.

The tumor was pressing on his brainstem.

anatomy

medulla

Innermost organ tissue

neuroanatomy · pyramids · olive

function

breathing

Pulmonary gas exchange

arousal · sleep-wake · swallowing · coughing · sneezing · vomiting · eye-movement · balance · digestion · thermoregulation

clinical

stroke

Sudden brain blood blockage

  • comaUnwakeable unconsciousness
  • lesionArea of pathological change
  • herniationOrgan protruding abnormally

glioma · hemorrhage · infarction · apnea · dysphagia · vertigo · nystagmus · decerebrate · decorticate

pathways

afferent

Conveying toward central point

synapse · neurotransmission

Categories
Opposites
brain anatomy hierarchy

brainstemcerebral cortex

Brain's outer neural sheet

cortex · neocortex · prefrontal cortex · frontal lobe · cerebrum

primitive vs. higher-order function

brainstemconscious mind

Wakeful, deliberate mental activity

limbic system

Family

brainstems

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