Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 25 - The Digestive System - Study Guide - Testing Your Recall - Page 992: 5

Answer

The correct answer is $a. chylomicrons.$

Work Step by Step

The correct answer is $a. chylomicrons$. Lacteals are specialized lymphatic vessels located in the small intestine's villi. They are responsible for absorbing dietary fats and fat-soluble vitamins. After digestion and absorption of fats in the small intestine, the resulting products, such as fatty acids and monoglycerides, are reassembled into larger particles called chylomicrons. Chylomicrons are then transported into the lacteals, from which they enter the lymphatic system. Eventually, they reach the bloodstream through the lymphatic ducts. The other options mentioned are not typically absorbed by lacteals: $b. Micelles$ - These are small structures formed from bile salts and fatty acids that aid in the absorption of fat-soluble nutrients in the small intestine. $c. Emulsification droplets$ - These are small fat droplets that have been broken down by bile salts to increase their surface area, facilitating digestion and absorption of fats. $d. Amino acids$ - These are absorbed by blood capillaries in the villi of the small intestine and are carried through the bloodstream to various tissues. $e. Monosaccharides$ - These simple sugars are absorbed by blood capillaries in the small intestine villi and enter the bloodstream for distribution to the body's cells. So, the correct answer is that $lacteals absorb chylomicrons.$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.