Increased gastric motility and digestion are controlled by which of the following?
The parasympathetic nervous system
The limbic system
The central nervous system
The sympathetic nervous system
The Correct Answer is A
A) The parasympathetic nervous system:
This is the correct answer. The parasympathetic nervous system is responsible for regulating rest and digestion. It controls activities such as increased gastric motility, secretion of digestive enzymes, and relaxation of sphincters in the gastrointestinal tract. Activation of the parasympathetic nervous system promotes digestion and absorption of nutrients by increasing gastrointestinal activity.
B) The limbic system:
The limbic system is primarily involved in emotions, behavior, and long-term memory formation. While emotions can influence gastrointestinal function, including appetite and digestion, the limbic system itself does not directly control gastric motility and digestion.
C) The central nervous system:
The central nervous system includes the brain and spinal cord and plays a vital role in integrating and coordinating all body activities. While it indirectly influences gastrointestinal function through autonomic nervous system control, it is not the primary regulator of gastric motility and digestion.
D) The sympathetic nervous system:
The sympathetic nervous system is responsible for the body's fight or flight response, which involves activities such as increasing heart rate, dilating airways, and redirecting blood flow away from the digestive organs to skeletal muscles during times of stress or arousal. It typically inhibits digestive processes, including gastric motility, to conserve energy for immediate survival needs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This is the correct response. ACE inhibitors are known to cause a persistent, dry, and irritating cough in some individuals. This adverse effect occurs due to the accumulation of bradykinin and other substances in the lungs, leading to increased sensitivity of the cough reflex. The cough typically resolves upon discontinuation of the ACE inhibitor.
B) Respiratory depression:
Respiratory depression is not a common side effect of ACE inhibitors. ACE inhibitors do not directly affect respiratory drive or function in the central nervous system. Therefore, this option is incorrect.
C) Spontaneous pneumothorax:
Spontaneous pneumothorax is not a typical adverse effect associated with ACE inhibitor use. ACE inhibitors do not directly cause the development of pneumothorax, which is characterized by the presence of air in the pleural space. Therefore, this option is incorrect.
D) Pneumonia:
While ACE inhibitors can increase the risk of respiratory infections due to their effect on the immune system, pneumonia is not a specific adverse effect associated with ACE inhibitor use. Pneumonia is typically caused by infectious agents such as bacteria, viruses, or fungi, rather than being a direct effect of ACE inhibitors. Therefore, this option is incorrect.”
Correct Answer is B
Explanation
A) Decreased bowel sounds:
While diarrhea can lead to changes in bowel function, such as increased frequency and urgency, it typically does not cause decreased bowel sounds. In fact, hyperactive bowel sounds may be present in some cases of diarrhea due to increased gastrointestinal motility and peristalsis as the body attempts to expel excess stool.
B) Dehydration:
This is the correct answer. Diarrhea can result in fluid and electrolyte losses, leading to dehydration if not adequately managed. Common symptoms of dehydration include increased thirst, dry mucous membranes, decreased urine output, dark urine, fatigue, weakness, and dizziness. In severe cases, dehydration can lead to hypovolemic shock, a life-threatening condition requiring immediate medical attention.
C) Rigid abdomen:
While abdominal discomfort and cramping are common symptoms of diarrhea, a rigid abdomen is not typically associated with uncomplicated cases of diarrhea. However, severe abdominal pain, distention, and rigidity may indicate underlying complications such as bowel obstruction or peritonitis, which require urgent medical evaluation.
D) Hypothermia:
Hypothermia, or abnormally low body temperature, is not a typical finding in clients with diarrhea. In fact, diarrhea is more commonly associated with fluid and electrolyte imbalances that can lead to hyperthermia (elevated body temperature) due to dehydration and inflammatory responses. However, hypothermia may occur in severe cases of dehydration or sepsis, but it is not a direct consequence of diarrhea itself.
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