This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW SHARON, Iowa -- Three young brothers are dead after a crash in Mahaska County Thursday. The Iowa State Patrol says a truck driven by 41-year-old Shawn Schippers collided with a car driven by 16-year-old Jamie Singletary at the intersection of Queens Avenue and 130th Street, east of New Sharon, around 1:00 p.m. They say both vehicles went into the ditch.
Video: Sympathetic Nervous System: Definition, Function & Effects. The autonomic nervous system is the portion that controls all of the involuntary functions of the body. This includes the body's response to emergency situations. In this article, we discuss the sympathetic nervous system and its responses under these circumstances.
Nervous control of muscular contraction Structure and functions of the nervous system Muscle contraction is initiated by the nervous system which together with the endocrine system controls the human organism. They are responsible for the steadiness of the inner environment and coordination of all the bodily functions. The nerve cell, a neuron, is the basic unit of the nervous system (Fig. 14).