What is vasodilation?
Compression of a vein because of muscle contraction.
An increase in the diameter of a blood vessel.
Contraction of the ventricles which increases ventricular pressure.
A decrease in the diameter of a blood vessel.
The Correct Answer is B
A. Compression of a vein because of muscle contraction: That’s mechanical venous compression (skeletal muscle pump), not vasodilation.
B. An increase in the diameter of a blood vessel: Definition of vasodilation.
C. Contraction of the ventricles which increases ventricular pressure: That describes ventricular systole, not vasodilation.
D. A decrease in the diameter of a blood vessel: That is vasoconstriction, the opposite of vasodilation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The formation of a network of fibrin fibers: This describes fibrin clot formation/coagulation, not diapedesis.
B. The release of the contents of cytoplasmic granules: This is degranulation (e.g., in mast cells, neutrophils), not diapedesis.
C. The ability to rapidly divide, increasing the number of a particular leukocyte: This describes cell proliferation, not diapedesis.
D. The ability of cells to squeeze between cells of capillary walls: Diapedesis -leukocytes migrating out of the bloodstream by squeezing between endothelial cells.
Correct Answer is {"dropdown-group-1":"C"}
Explanation
Correct answer: Stomach
The stomach is the J-shaped digestive organ in the upper abdomen (left upper quadrant) with a thick muscular wall and gastric folds (rugae); its shape and position on the model match the circled organ.
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