ANATOMY+PHYSIOLOGY
4th Edition
ISBN: 9781260265217
Author: McKinley
Publisher: RENT MCG
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Chapter 26, Problem 3CSL
Most cases of colorectal cancer occur in the most distal part of the large intestine (the rectum, sigmoid colon, and descending colon). Why does the proximal part of the large intestine tend to have fewer instances of colon cancer? Include the anatomy and function of the colon structures in your explanation.
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Chapter 26 Solutions
ANATOMY+PHYSIOLOGY
Ch. 26.1 - How is the gastrointestinal (GI) tract...Ch. 26.1 - Prob. 2WDYLCh. 26.1 - What specific layer(s) must substances cross to...Ch. 26.1 - Prob. 4WDYLCh. 26.1 - Prob. 5WDYLCh. 26.1 - Prob. 6WDYLCh. 26.1 - Prob. 7WDYLCh. 26.1 - Prob. 8WDYLCh. 26.1 - Prob. 9WDYLCh. 26.2 - What structures are considered part of the upper...
Ch. 26.2 - Prob. 11WDYLCh. 26.2 - Prob. 12WDYLCh. 26.2 - How is the bolus moved from the oral cavity into...Ch. 26.2 - Prob. 14WDYLCh. 26.2 - Prob. 15WDYLCh. 26.3 - What organs are considered part of the lower GI...Ch. 26.3 - What are the three anatomic structures that...Ch. 26.3 - Prob. 18WDYLCh. 26.3 - Diagram the ducts of the accessory digestive...Ch. 26.3 - Prob. 20WDYLCh. 26.3 - Prob. 21WDYLCh. 26.3 - Prob. 22WDYLCh. 26.3 - Prob. 23WDYLCh. 26.3 - Which substances are typically absorbed by the...Ch. 26.4 - What enzymes are required to completely break down...Ch. 26.4 - How are proteolytic enzymes activated in the...Ch. 26.4 - What is the function of bile salts in lipid...Ch. 26.4 - Prob. 28WDYLCh. 26.4 - Prob. 29WDYLCh. 26.4 - Prob. 30WDYLCh. 26 - _____ 1. Which organ is located in the right upper...Ch. 26 - _____ 2. The _____ cells of the stomach are...Ch. 26 - _____ 3. Which of the following is an unregulated...Ch. 26 - _____ 4. Which organ (or part of an organ) is...Ch. 26 - _____ 5. Pancreatic juice contains a. HCO3 and...Ch. 26 - _____ 6. Bile is transported through the a....Ch. 26 - _____ 7. Digestion of proteins begins in the a....Ch. 26 - Prob. 8DYKBCh. 26 - _____ 9. Digestive enzymes that chemically digest...Ch. 26 - _____ 10. Most of the absorption of our digested...Ch. 26 - The GI tract from the esophagus to the anal canal...Ch. 26 - Discuss the reason why the involuntary sequence of...Ch. 26 - Prob. 13DYKBCh. 26 - Compare the structure of the circular folds,...Ch. 26 - Discuss why the tunica mucosa in the colon has a...Ch. 26 - Prob. 16DYKBCh. 26 - What is the role of the gallbladder in digestion?Ch. 26 - Describe the different forms of mechanical...Ch. 26 - Prob. 19DYKBCh. 26 - How are lipids absorbed in the GI tract?Ch. 26 - Prob. 1CALCh. 26 - Prob. 2CALCh. 26 - What component of the digestive tract can you not...Ch. 26 - The pancreatic ducts are blocked with a thick,...Ch. 26 - Prob. 5CALCh. 26 - Alexandra experienced vomiting and diarrhea and...Ch. 26 - A key event in the chemical digestion processes...Ch. 26 - Most cases of colorectal cancer occur in the most...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Match the correct number from Figure 14-24 with the corresponding anatomic structure. Spleen Urinary bladder Jejunum Right lateral lobe of the liver Gallbladder Descending duodenum Left lateral lobe of the liver Greater curvature of the stomac Descending colon Right medial lobe of the liver Quadrate lobe of the liver 3arrow_forwardWhich of the following is a true statement concerning this region of the digestive tract? 1. This region of the digestive tract is classified as intraperitoneal. 2. This region of the digestive tract is supplied by the superior mesenteric artery (demonstrating multiple arcades) 3. This region of the digestive tract functions in most of the enzymatic digestive activities and nutrient absorption. 4. This region of the digestive tract is supplied sympathetic innervation via the least splanchnic nerve. Choose from the following: (A) 1 and 2 (B) 1 and 3 (C) 2 and 3 (D) 1, 2, and 4 (E) 3 and 4arrow_forwardWhile there are numerous structural similarities among the major histological tissues of alimentary canal organs, there are also unique characteristics in specific organs. Which of the following descriptions of the tissue layers contains inaccurate information? O A. The muscularis externa layer in the stomach is unique because it contains 3 layers of smooth muscle instead of just 2. O B. The submucosa in the esophagus is unique because it has esophageal glands that secrete a lot of mucus. OC The mucosa layer in the stomach is unique because it contains complex gastric pits with chief cells (that produce enzymes), parietal cells (that secrete acid), and enteroendocrine cells (that secrete digestive hormones). O D. All the other choices have no inaccurate information. O E. The mucosa layer in the small intestine is unique because it is responsible for the majority of chemical digestion and nutrient absorption. It has a brush border, and multiple structures to increase surface area…arrow_forward
- How could surgical resection of the ileum impact liver function? Consider the intricate interplay between the small intestine and liver in nutrient absorption, bile acid metabolism, and liver function. What are two potential interventions to alleviate the impacts listed above?arrow_forward(2) following questions: list the organs and their common diseases of digestive system.. Then, answer the (a) which organs are the most susceptible to disease? Explain. (b) which organs are the least susceptible to disease? Explain. (c) is there a relationship between the location of an organ in the human body and its susceptibility to a given disease? Explain. (d) is there a relationship between the organ system into which a given organ belongs and its susceptibility to a given disease? Explain.arrow_forwardThe small bowel biopsy results state, "flat mucosa with villus atrophy and hyperplastic crypts-inflammatory infiltrate in lamina propria." What do these results tell you about the change in the anatomy of the small intestine?arrow_forward
- Trace the entire duct systems of the liver and pancreas. (Study these ducts in Figure 23.19, and then try to draw them from memory.)arrow_forwardBleeding can occur from any part of the GI tract. Describe a possible cause of bleeding in the small intestine and a different cause in the colon. Are there differences in symptoms or presentation in your two examplesarrow_forwardIn pedi’tric gastroesophageal reflux disease (GERD), the immaturity of lower esophageal sphincter function is manifested by frequent transient lower esophageal relaxations, which result in retrograde flow of gastric contents into the esophagus. Which statement about the esophagus is true? Select all that apply. It is a cartilaginous tube. It has upper and lower sphincters. It lies anterior to the trachea. It extends from the nasal cavity to the stomach. It is a highway for food and drinks to travel along to make it to the stomach. All statements describe the esophagus.arrow_forward
- Inflammation of the digestive tract is common to most irritable bowel diseases causing in decreased capacity to absorb nutrients and minerals. In extreme cases, this can lead to severe diarrhea, malnutrition, osteoporosis (weakening of the bones), and iron deficiency, to name a few. , which region(s) and structure(s) of the alimentary canal is (are) most likely targets of inflammation? Explain your answer based on the roles of each segment of the alimentary canal.arrow_forwardList five types of cells that line the gastric pits of the stomach, the secretions of each of the cell types and the function of the secretions.arrow_forwardWhich surgery do you think would have the most profound effect on digestion: (a) removal of the stomach (gastrectomy); (b) removal of the pancreas (pancreatectomy);or (c) removal of the gallbladder (cholecystectomy)? Explain your reasoning.arrow_forward
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