AP PSYCHOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).

Detailed explanation-3: -The parasympathetic nervous system is responsible for the body’s rest and digestion response when the body is relaxed, resting, or feeding. It basically undoes the work of sympathetic division after a stressful situation. The parasympathetic nervous system decreases respiration and heart rate and increases 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.

Detailed explanation-5: -The autonomic nervous system regulates certain body processes, such as blood pressure and the rate of breathing.