Unlike blood capillaries, lymphatic capillaries:
Do not contain any cells
Are blind-ended
Are virtually impermeable to water and solutes
Contain a thin muscular layer.
The Correct Answer is B
A. Lymphatic capillaries do contain cells, specifically endothelial cells that form the walls of the capillaries.
B. Lymphatic capillaries are blind-ended, meaning they have an open end that begins the collection of interstitial fluid (lymph), unlike blood capillaries, which form continuous loops.
C. Lymphatic capillaries are highly permeable to water, solutes, and larger particles, which is one reason they are efficient at collecting interstitial fluid.
D. Lymphatic capillaries do not contain a muscular layer. Instead, they rely on the surrounding tissues and valves to help move lymph through the system
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D"]
Explanation
A. Neutrophils are part of the second line of defense, not the first. They are white blood cells that respond to infection by phagocytosing pathogens after they have entered the body.
B. Inflammation is part of the second line of defense. It is an immune response that occurs after a pathogen has breached the body's barriers.
C. Tears are part of the first line of defense. They contain enzymes like lysozyme that help wash away and destroy pathogens on the surface of the eye.
D. Saliva is part of the first line of defense. It contains enzymes and antimicrobial substances that help neutralize and flush out pathogens from the mouth.
Correct Answer is C
Explanation
A. Lymph from the lower body drains into the thoracic duct.
B. Lymph from the left side of the head drains into the thoracic duct as well, which eventually empties into the systemic circulation.
C. Lymph from the right arm does not enter the thoracic duct. It drains into the right lymphatic duct, which then empties into the systemic circulation.
D. Lymph from the left arm drains into the thoracic duct along with lymph from other parts of the body.
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