Which type of white blood cell is categorized as an agranular leukocyte?
Eosinophil cell
Polymorphonuclear cell
Monocyte cell
Basophil cell
The Correct Answer is C
A. Eosinophil cell: Eosinophils are granular leukocytes involved in allergic reactions and parasitic infections.
B. Polymorphonuclear cell: This refers to neutrophils, which are granular leukocytes with multi-lobed nuclei.
C. Monocyte cell: Monocytes are agranular leukocytes that can differentiate into macrophages and are involved in phagocytosis.
D. Basophil cell: Basophils are also granular leukocytes involved in immune responses and releasing histamine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Parietal Cell: Parietal cells are responsible for secreting hydrochloric acid (HCl) and intrinsic factor, not pepsinogen. HCl activates pepsinogen into pepsin.
B. Mucous Neck Cell: Mucous neck cells secrete mucus to protect the gastric lining but do not secrete pepsinogen.
C. Chief Cell: Chief cells (also known as zymogenic cells) are specialized cells in the stomach that secrete pepsinogen, the inactive precursor of the digestive enzyme pepsin.
D. Enteroendocrine Cell: Enteroendocrine cells secrete hormones like gastrin, which regulates digestive processes, but they do not secrete pepsinogen.
Correct Answer is D
Explanation
A. Pharynx: The pharynx is a part of the throat, but the vocal folds are not located here.
B. Epiglottis: The epiglottis is a flap of tissue that prevents food from entering the trachea, but it is not where the vocal folds are located.
C. Trachea: The trachea is the windpipe, but the vocal folds are not present here.
D. Larynx: The vocal folds (or vocal cords) are located in the larynx (voice box), which is responsible for sound production.
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