The pathway by which lipoproteins (products of lipid digestion) are absorbed from theintestinal villi into the blood is
Correct answer: C. Lacteal → lymph → thoracic lymph duct → subclavian vein
- A. Epithelial cells → interstitial fluid → capillaries → subclavian vein
- B. Epithelial cells → capillaries → interstitial fluid → thoracic vein
- C. Lacteal → lymph → thoracic lymph duct → subclavian vein
- D. Lacteal → interstitial fluid → capillaries → thoracic vein
Explanation
The correct pathway for the absorption of lipoproteins involves their entry into lacteals, which are lymphatic vessels in the intestinal villi. From the lacteals, lipoproteins travel through the lymphatic system, merging into the thoracic duct. This duct then drains into the subclavian vein, allowing lipoproteins to enter the bloodstream. Options A, B, and D are incorrect because they either bypass the lymphatic system or incorrectly describe the sequence of structures involved in the transport of lipoproteins.
Last updated
About Human Digestive System
The human digestive system breaks food into absorbable molecules through mechanical processing, enzyme action and chemical conditions along the alimentary canal. Questions cover the mouth, stomach, small and large intestines, liver, pancreas and associated secretions, including the digestion and absorption of carbohydrates, proteins, lipids, vitamins, minerals and water.
Practise Digestion
680 free Digestion MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A painful burning sensation produced in the chest cavity usually associated with the back flush of acidic chyme into the esophagus is__________?
Acid present in gastric juice is_________?
All of the following are the constituents of human saliva EXCEPT
Ammonia is formed during digestion in:
An acrinus is composed of: