B:
The fight or flight response is an automatic physiological reaction to an event that is perceived as stressful or frightening. The perception of threat activates the sympathetic nervous system and triggers an acute stress response that prepares the body to fight or flee. These responses are evolutionary adaptations to increase chances of survival in threatening situations. Overly frequent, intense, or inappropriate activation of the fight or flight response is implicated in a range of clinical conditions including most anxiety disorders. A helpful part of treatment for anxiety is an improved understanding of the purpose and function of the fight or flight response. This client information sheet describes the bodily consequences of the fight or flight response.
The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.
Answer: Acini
cells—water, electrolytes, mucus and enzymes
The Acini
cells are clusters of
cells, which is the basic
secretory units of salivary glands. These cells secretes fluid that contains water, electrolytes, mucus and enzymes, which flow out of the acinus into collecting
ducts. On the other hand, acinar cells secrete proteins such as the enzyme salivary amylase.
