How do the sympathetic and parasympathetic divisions interact?
| July 7, 2021 | education
The parasympathetic and sympathetic divisions are usually antagonistic. Most organs are innervated by both departments. For example, heart rate control: parasympathetic stimulation slows down the heart rate, while sympathetic stimulation increases the heart rate.
Parasympathetic stimulation causes constriction of the pupil caused by stimulation of the circular muscle layer in the iris. Sympathetic stimulation causes pupil dilation caused by stimulation of the radial muscle layer in the iris.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
