Multiple Choice
Which type of hormone can easily cross a cell membrane?
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16. The Endocrine System
Introduction to the Endocrine System
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What is the primary function of the thymus in the human body?
A
To produce T-cells for the immune system
B
To filter blood and remove old red blood cells
C
To secrete digestive enzymes into the small intestine
D
To produce insulin for blood sugar regulation
Verified step by step guidance1
Identify the location and structure of the thymus in the human body. The thymus is a small organ located in the upper chest, behind the sternum and between the lungs.
Understand the role of the thymus in the immune system. The thymus is crucial for the development of T-cells, which are a type of white blood cell essential for adaptive immunity.
Differentiate the function of T-cells. T-cells are responsible for identifying and destroying infected cells and coordinating the immune response.
Compare the functions of other organs mentioned in the options. The spleen filters blood and removes old red blood cells, the pancreas secretes digestive enzymes and insulin, and the liver has various metabolic functions.
Conclude that the primary function of the thymus is to produce T-cells for the immune system, distinguishing it from the other options provided.
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