GENERAL HISTOLOGY

Detailed explanation-1: -The ANS can be subdivided into sympathetic and parasympathetic nervous systems. It is the sympathetic branch of the ANS that is responsible for the “fright, flight, or fight” response elicited by the encounter with the bear.

Detailed explanation-2: -Suddenly, an angry bear appears in your path. Do you stay and fight OR do you turn and run away? These are “Fight or Flight” responses. In these types of situations, your sympathetic nervous system is called into action-it uses energy-blood pressure increases, heart beats faster, and digestion slows.

Detailed explanation-3: -Your sympathetic nervous system is best known for its role in responding to dangerous or stressful situations. In these situations, your sympathetic nervous system activates to speed up your heart rate, deliver more blood to areas of your body that need more oxygen or other responses to help your get out of danger.

Detailed explanation-4: -Answer and Explanation: The correct answer is c) Weeping at a funeral. The sympathetic nervous system excites us whereas the parasympathetic nervous system calms us.

Detailed explanation-5: -eg, the sympathetic nervous system can accelerate heart rate, widen bronchial passages, decrease motility (movement) of the large intestine, constrict blood vessels, cause pupil dilation, activate goose bumps, start sweating and raise blood pressure.