Asked by Kayla Matusz on Jul 29, 2024
Verified
If the thoracic duct were tied off, which of the following classes of nutrients would not enter the circulatory system at their normal rate?
A) Amino acids
B) Glucose
C) Lipids
D) Disaccharides
E) Monosaccharides
Thoracic Duct
Largest lymph vessel in the body, beginning at the cisterna chyli and emptying into the left subclavian vein; drains the left side of the head and neck, the left-upper thorax, the left-upper limb, and the inferior half of the body.
Circulatory System
The body's system responsible for the transport of blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.
Lipids
A group of naturally occurring molecules that include fats, waxes, sterols, and fat-soluble vitamins, among others, used by the body for energy and making up cell membranes.
- Characterize the sequence of activities in the breakdown and uptake of lipids.
- Comprehend the cellular mechanics underpinning nutrient uptake at the molecular level.
Verified Answer
RZ
Rocco ZinobileAug 01, 2024
Final Answer :
C
Explanation :
The thoracic duct is a major part of the lymphatic system, which is responsible for transporting lipids (fats) absorbed from the intestine into the bloodstream. Tying off the thoracic duct would impede the normal flow of lipids into the circulatory system, affecting their entry rate. Amino acids, glucose, disaccharides, and monosaccharides are primarily absorbed directly into the bloodstream through the intestinal capillaries and would not be affected by the state of the thoracic duct.
Learning Objectives
- Characterize the sequence of activities in the breakdown and uptake of lipids.
- Comprehend the cellular mechanics underpinning nutrient uptake at the molecular level.