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brain stem

brain stem

15 4.1
The part of the brain near the spinal cord that controls breathing and heart rate
  • noun
  • /breɪn stɛm/
  • Specialized
translation icon : tronco encefálico
  • So the fibers coming from your motor cortex go down to this part of the the brain stem, which is called the ventral ponds.

Some neurons in your brain stem send a signal back to the heart to slow the heart down.

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Examples

  • Preliminary tests indicate the victim had a high concentration of serotonin in the brain stem.

  • The 5 patients who died were over 60 years of age, and 3 had brain stem or cerebellar involvement on MRI.

    Academic text (2013)
  • And the first part of the brain that we enter is called the brain stem.

    Blog text (24)
  • The three parts of the brain stem and their functions

    Blog text (24)
  • This is the brain stem area right here, right before this, the spinal cord.

  • Some neurons in your brain stem send a signal back to the heart to slow the heart down.

  • In this video, Leslie explains the different parts of the brain stem and their respective functions.

    Blog text (24)
  • The cranial nerve stretches from the brain stem down to the stomach.

  • At the same time, neurons in the hypothalamus and brain stem release a compound called GABA.

  • The brain stem connects the spinal cord to the brain, playing a crucial role in regulating vital functions.

Synonyms

brainstem
vsbrain stem
  • Specialized
6 5.5

The part of the brain that connects to the spinal cord and controls breathing and heart rate

includes parts of the hypothalamus in addition to those three regions
brain-stem
vsbrain stem
  • Specialized
1 4.4

The part of the brain at the base that connects to the spinal cord and controls breathing and heart rate

includes parts of the hypothalamus in addition to the three core regions

Surface Forms

brain stem singular
brain stems plural

Morphology

brain + stem

The compound is directly compositional: 'brain' (the organ) plus 'stem' (a trunk or main stalk) conveys the trunk-like part of the brain that connects to the spinal cord. This noun+noun pattern and the metaphor of a 'stem/trunk' for a central connecting structure is cross-linguistically common, so a B1 learner who knows both words should be able to infer the meaning.

Etymology

Brain stem gets its name from a simple picture: like a plant stem, the stem is the small trunk that links the brain above to the body below. So the name fits because this part 'connects' the brain and spinal cord and 'controls' basic life actions like breathing and heartbeat.