AP PSYCHOLOGY

Detailed explanation-1: -The parasympathetic nervous system decreases respiration and heart rate and increases digestion. Stimulation of the parasympathetic nervous system results in: Construction of pupils. Decreased heart rate and blood pressure.

Detailed explanation-2: -The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal. It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.

Detailed explanation-3: -This system’s activity increases when you’re stressed, in danger or physically active. Its effects include increasing your heart rate and breathing ability, improving your eyesight and slowing down processes like digestion.

Detailed explanation-4: -Like most organs, the eye is innervated by the autonomic nervous system. However, the autonomic innervation of the eye is particularly specialized to support the unique requirements of the eye as the organ of vision (Figure 1). In the anterior segment, the iris acts to control the amount of light falling on the retina.