In the brain stem are located groups of nerve cells to which are given the name of centers.
These are three in number, named the cerebrum, the cerebellum, and the brain stem.
The brain stem is really the upper extension of the spinal cord within the head.
These are a few of the centers which are present in the brain stem.
The kind of joint to be used having been hit upon, the next point was to secure a safe passage for the brain stem.
We have a center in the brain stem from which the nervous discharges come.
These are only some of the devices which Nature had to contrive in order to secure a safe passageway for the brain stem.
The brain stem has a special function of its own in connection with the control of what are often called the vital processes.
Both these sets of nerves arise from centers in the brain stem, and both these centers appear to be discharging continuously.
When this warm blood enters the brain stem it arouses the sweat center and an increased secretion of sweat results.
brain stem or brainstem
The portion of the brain, consisting of the medulla oblongata, pons Varolii, and mesencephalon, that connects the spinal cord to the forebrain and cerebrum.
The part of the vertebrate brain located at the base of the brain and made up of the medulla oblongata, pons, and midbrain. The brainstem controls and regulates vital body functions, including respiration, heart rate, and blood pressure. See also reticular formation.