Identify the white blood cell in the image below. Fill in the blank
The Correct Answer is {"dropdown-group-1":"A"}
Correct answer: Neutrophil
Neutrophils have a multilobed (3–5 lobes) nucleus and fine, pale cytoplasmic granules; they are the most abundant WBC and are primary phagocytes in acute bacterial inflammation - those morphological features identify the cell as a neutrophil.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. arteriole: arterioles are small, muscular arteries with thicker walls and no valves; lymphatics are thin-walled and valved.
B. artery: arteries have thick, muscular, elastic walls to withstand high pressure; lymphatic vessels are thin-walled and low-pressure.
C. capillary: capillaries are tiny single-cell-thick vessels for exchange; lymphatics are larger and have valves.
D. vein: lymphatic vessels have thin walls and valves and operate under low pressure, making them most similar in structure/function to veins.
Correct Answer is A
Explanation
A. Inflammation: inflammation causes vasodilation and increased capillary permeability so immune cells and plasma components reach the injured/infected tissue.
B. Activation of NK cells: NK cell activation is an innate cytotoxic response against infected or malignant cells but does not itself describe the vascular changes listed.
C. Complement activation: complement promotes opsonization, chemotaxis, and membrane attack, but the described vasodilation/permeability hallmark is inflammation.
D. Activation of mononuclear phagocytic system: activation of macrophages/monocytes contributes to defense and cleanup, but the vascular response described is specifically the inflammatory process.
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