They seem to be complex they are rapid and tend to spread
Answer:Medulla and pons.
Explanation: Brain is the part of the body that controls all body activities. Medulla and pins are part of the brain.
Medulla controls respiration. It receives signals from chemoreceptors and send to muscles that allow respiration. It also regulate heart rate and blood pressure to ensure adequate blood supply circulate the body system.
Medulla also help in adjusting respiration when there is need and also generates normal breathing movements by stimulating the nerve that supplies the diaphragm. This pons are located under the medulla and it controls speed of involuntary respiration( respiration
Not under conscious control).
When a patience shows a disorder in respiration, invountary respiration, increase in heart rate its a disorder of Medulla and pons also called Brainstems
Answer:d) contracting her pupils and increasing secretion of stress hormones.
Explanation:
Peripheral nervous system consists of 3 major neuronal levels: vegetative (reticular formation and brain stem), limbic system and neocortical level. The RAS is the link between the brain and the spinal cord.
Brain stem consists of pons, medulla oblongata and mesencephalon. Brain stem is responsible for involuntary functions such as heart beat, respiration and vasomotor activity. Limbic system represents the emotional control center. It consists of thalamus, hypothalamus and pituitary gland and maintains homeostasis. Neocortical part processes sensory information and regulates emotional responses.
Autonomic nervous system (ANS) regulates visceral activities and organs (circulation, digestion, respiration and temperature). ANS has two divisions: sympathetic and parasympathetic nervous system.Parasympathetic nervous system regulates homeostasis via the release of acetylcholine (Ach). Parasympathetic nervous system is responsible for energy conservation and relaxation.
There are three stages in the stress response: immediate effects of stress, intermediate effects of stress and prolonged effects of stress.
Welp you have to show the model...
