For each response 1st state whether you are accepting or...

For each response, [1st] State whether you are ACCEPTING or REJECTING that statement. [2nd] Write a detailed explanation WHY you ACCEPT or REJECT ALL of the choices. The following problem-solving assessment is presented in a multiple-choice format. Each choice should be considered individually and an argument should be written for accepting or rejecting it. Since the problem has one best answer, there should be one argument for acceptance and four for rejection. PROBLEM: A middle-aged professor complains of burning pain in the "pit of her stomach," usually beginning about two hours after eating and abating after drinking a glass of milk. When asked to indicate the site, she points to her epigastric region. Her GI tract is examined by X-ray fluoroscopy and a gastric ulcer is identified. A selective vagotomy (cutting the vagal fibers serving the stomach) is recommended. [A.]Gastrin will no longer be secreted by the stomach or duodenum. [B.]‘Activity of the sympathetic division of the autonomic nervous system will be increased. [C.] There will be a general reduction in secretory activity of the stomach. [D.]The cephalic phase of gastric secretion will be intensified. [E.] Digestion processes normally occurring in the stomach will cease

Transcript

00:01 Okay, this question says, a middle -aged professor complains of burning pain in the pit of her stomach, usually beginning about two hours after eating and abating after drinking a glass of milk.

00:12 When asked to indicate a site she points to her epigastric region, her gi tract is examined by x -ray fluoroscopy and a gastric ulcer is identified.

00:22 So you have a gastric ulcer, okay.

00:30 A selective vagotomy, it means cutting the vagal fibers serving the stomach, is recommended.

00:35 For each statement, write a detailed explanation why you accept or reject it.

00:40 So, first, it says gastric will no longer be secreted by the stomach or duodenum.

00:47 So we're going to reject this, okay, because selective vagotomy involves cutting only the vagal fibers that supply the stomach and not those that supply the duodenum or other parts of the gastrointestinal tract.

01:02 Gastric is primarily secreted by the g -cells located in the antrum of the stomach, which are stimulated by vagal nerve activity.

01:09 However, it is also secreted by g -cells located in the duodenum in response to the presence of food in the small intestine, okay.

01:17 So cutting the vagal nerves or the vagal fibers to the stomach will reduce the stimulation of g -cells in the stomach, which could lead to decreased gastric acid secretion and potentially help in healing the gastric ulcer, okay.

01:32 So it is not going to affect the secretion of gastrin by g -cells in the duodenum, which can continue to stimulate gastric acid secretion.

01:42 So practically, in resume, selective vagotomy would not eliminate the secretion of gastrin by the stomach or duodenum, but it would decrease the amount of gastric acid secretion by the stomach.

01:52 So we're going to reject this.

01:54 Now the second one says activity of the sympathetic division of the autonomic nervous system will be increased.

02:02 So we're going to reject also this one here.

02:10 Selective vagotomy involves cutting the vagal fibers that supply the stomach, remember, okay, which are part of the parasympathetic division of the autonomic nervous system.

02:19 Or actually, we can accept this one, okay, we can accept this one here, because again, selective vagotomy directly affects the parasympathetic division of the autonomic nervous system because it is affecting the vagus nerve that is part of the parasympathetic nervous system, okay? but it can also indirectly affect the activity of the sympathetic nervous system.

02:46 The vagus nerve provides inhibitory control over the sympathetic nervous system, remember, and cutting the vagal fibers to the stomach can result in the loss of this inhibitory control leading to an increase in the sympathetic activity, okay? therefore, in the long term, selective vagotomy can lead to an increase in sympathetic activity to the stomach, which could potentially exacerbate symptoms such as reduced gastric motility or impaired digestive function...

Question

Please give Ace some feedback