Which of the following correctly lists the sequence of steps that occur during hemostasis in response to a damaged blood vessel?
hemolysis, vascular spasm, platelet plug formation
vascular spasm, clotting polycythemia
vascular spasm, platelet plug formation, clotting
emigration, clotting hemolysis
The Correct Answer is C
a) Hemolysis, vascular spasm, platelet plug formation: Hemolysis (RBC destruction) is not part of hemostasis.
b) Vascular spasm, clotting polycythemia: Polycythemia is an excess of RBCs, unrelated to clotting sequence.
c) Vascular spasm, platelet plug formation, clotting: This is the accurate and standard 3-step sequence of hemostasis.
d) Emigration, clotting, hemolysis: Emigration refers to WBC movement; this choice contains unrelated processes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
a) Mineralocorticoids
These are produced in the zona glomerulosa, not the zona fasciculata.
b) Androgens
Androgens are primarily produced in the zona reticularis.
c) Glucocorticoids
The zona fasciculata is the middle layer of the adrenal cortex and produces glucocorticoids, such as cortisol.
d) Estrogens
Estrogens are not produced by the adrenal cortex in significant amounts; they are mainly produced in the ovaries.
Correct Answer is C
Explanation
a) Hepatic portal system: This carries blood from the gastrointestinal tract to the liver, not the brain.
b) Coronary circulatory system: This system supplies the heart muscle, not involved in hormone transport from hypothalamus.
c) hypophyseal portal system: The hypophyseal portal system is a specialized vascular system that transports releasing and inhibiting hormones from the hypothalamus to the anterior pituitary.
d) Hypothalamus-hypophysial tract: This is a neural pathway used to transport ADH and oxytocin to the posterior pituitary, not the anterior.
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