The Medulla Oblongata, AKA the Brain Stem, is responsible for all involuntary actions, including heart rate.
the medulla oblongata which is in the brain
Brain Stem
Brain Stem
Brain Stem
The adrenal medulla is the part of the brain responsible for the release of adrenaline, when the adrenaline is released into the blood, the SAN is stimulated to work faster and increase your heart rate, this happens when playing sport or during your fight or flight response. However, the heart is not controlled by your brain as it is a myogenic muscle (self-exciting) this means that if you were to remove the heart from a body it would continue to beat. The sino-atrial node is responsible for the excitation of the heart. :) Hope this helps. Steph :)
Medulla
the medulla oblongata which is in the brain
Brain Stem
Medulls Oblongata
The brain stem controls these functions
Brain Stem
Brain Stem
Brain Stem
The adrenal medulla is the part of the brain responsible for the release of adrenaline, when the adrenaline is released into the blood, the SAN is stimulated to work faster and increase your heart rate, this happens when playing sport or during your fight or flight response. However, the heart is not controlled by your brain as it is a myogenic muscle (self-exciting) this means that if you were to remove the heart from a body it would continue to beat. The sino-atrial node is responsible for the excitation of the heart. :) Hope this helps. Steph :)
Heart rate and breathing are regulated by a part of the brain stem called the medulla oblongata. This part of the brain stem controls breathing,heartbeat and articulate speech. As far as trembling that is a result of the automatic nervous system activation. It can also increase heart rate and increase breathing rate but it is not a control for these three. This part is called the sympathetic half of the autonomic system, the other half is the parasympathetic. You can not live without the medulla. A blow to that area will kill.
sympathetic nervous system
where is a central pulse obtained