Author Question: Describe some of the physiological changes that occur with activation of the fight-or-flight ... (Read 88 times)

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
Describe some of the physiological changes that occur with activation of the fight-or-flight response. Include both sympathetic and parasympathetic changes.

Question 2

Stress pioneer Dr. ___________________ _ developed the theory of the general adaptation syndrome as a result of his research on the physiological effects of chronic stress on rats.
 Fill in the blank(s) with correct word



cloudre37

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

The sympathetic nervous system initiates the fight-or-flight response each time we have a thought of potential or actual danger or pain. The text lists numerous physiological changes that help increase power, speed, and strength, including increased central nervous system activity and mental activity; increased secretion of adrenaline, noradrenaline, and cortisol; increased cardiac output; increased oxygen consumption; increased muscle contractions; and many more.

The parasympathetic nervous system returns the physiology to a state of homeostasis after the threat, danger, or potential pain is no longer perceived to be imminent. The parasympathetic branch is responsible for counterbalancing the body's sympathetic activity, which restores calm, promotes relaxation, and facilitates digestive functions, energy storage, and tissue repair and growth. Breathing is slow, as is the heart rate. Blood pressure and body temperature drop. In general, muscle tension decreases.

Answer to Question 2

Hans Selye



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

For a complete list of videos, visit our video library