Multiple Choice
Which nutrient must enter the lymphatic system before entering the bloodstream?
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20. The Lymphatic System
Introduction to the Lymphatic System
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How does lymphatic fluid differ from blood?
A
Lymphatic fluid lacks plasma proteins that are present in blood.
B
Lymphatic fluid has a higher concentration of oxygen than blood.
C
Lymphatic fluid contains red blood cells, while blood does not.
D
Lymphatic fluid is primarily composed of platelets, unlike blood.
Verified step by step guidance1
Understand the composition of blood: Blood is composed of plasma, red blood cells, white blood cells, and platelets. Plasma contains proteins such as albumin, globulins, and fibrinogen.
Examine the composition of lymphatic fluid: Lymphatic fluid is derived from interstitial fluid and primarily contains white blood cells, especially lymphocytes, and lacks red blood cells and platelets.
Compare the presence of plasma proteins: Plasma proteins are present in blood but are generally absent in lymphatic fluid, which is a key difference between the two.
Consider the oxygen concentration: Blood, particularly the red blood cells, is responsible for transporting oxygen throughout the body, whereas lymphatic fluid does not have a higher concentration of oxygen than blood.
Clarify the presence of cellular components: Blood contains red blood cells and platelets, while lymphatic fluid does not contain these components, focusing instead on white blood cells.
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