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Multiple Choice
The migration of white blood cells out of the capillary blood vessels is called __________.
A
transcytosis
B
active transport
C
leukocytosis
D
diapedesis
Verified step by step guidance
1
Begin by understanding the context of the problem: the movement of white blood cells, also known as leukocytes, from the bloodstream into tissues.
Recognize that this process is crucial for the immune response, allowing white blood cells to reach sites of infection or injury.
Identify the term 'diapedesis' as the correct answer, which refers to the passage of blood cells through the intact walls of the capillaries, typically accompanying inflammation.
Differentiate 'diapedesis' from other terms: 'transcytosis' involves the transport of molecules across cells, 'active transport' refers to the movement of substances against a concentration gradient, and 'leukocytosis' is an increase in the number of white blood cells in the blood.
Conclude that diapedesis is the specific process by which white blood cells exit the capillaries to perform their immune functions in the tissues.