In the diagram of the thyroid gland, Which letter indicates the follicles with colloids?
A
B
C
D
E
The Correct Answer is A
Colloid is a gel-like substance found within the follicles of the thyroid gland. It plays a critical role in the synthesis and storage of thyroid hormones.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a) Erythrocytes: These are mature red blood cells and do not have a nucleus.
b) Normoblasts: A normoblast is the last stage of red blood cell development that still has a nucleus. Once the nucleus is ejected, the cell becomes a reticulocyte and then matures into an erythrocyte.
c) Proerythroblasts: This is an earlier precursor stage that still has a nucleus but is not the final nucleated form.
d) Reticulocytes: Reticulocytes are immature RBCs that lack a nucleus but still contain RNA remnants.
Correct Answer is B
Explanation
a) Hemoglobin: Hemoglobin is the oxygen-carrying protein inside RBCs, measured in grams per deciliter.
b) Hematocrit: Hematocrit is the percentage of whole blood volume made up by red blood cells (RBCs). It's used to assess anemia or polycythemia.
c) Erythropoietin: This is a hormone (mostly from the kidneys) that stimulates RBC production in the bone marrow.
d) Erythrocyte sedimentation rate: This test measures how quickly RBCs settle in a test tube, used as a nonspecific marker for inflammation.
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