The parasympathetic branch of the ANS controls which three functions?

• A. Heart Rate, Respiration, and Digestion
• B. Endocrine Release, Sleep, and Immunity
• C. Visual Acuity, Cognitive Processing, and Fine Motor Skills
• D. Reflexes, Balance, and Coordination

Answer: (C)

The parasympathetic division is all about rest-and-digest activities. It tends to slow the heart rate, promote digestion, and stimulate glandular secretions (such as saliva and digestive enzymes). It also constricts the pupils in relaxed states and supports other everyday bodily maintenance functions. So, the functions you’d attribute to the parasympathetic system are primarily heart-rate reduction, enhanced digestion, and glandular secretions. Higher brain functions like visual processing, cognitive processing, or motor coordination, as well as basic reflexes and balance, come from the central nervous system and other pathways, not from the parasympathetic branch.