Identify the organ marked by an X in the image below. Fill in the blank
The Correct Answer is {"dropdown-group-1":"B"}
Correct answer: Esophagus
The esophagus is the muscular alimentary tube that runs posterior to the trachea from the pharynx to the stomach; a tube positioned behind the heart/sternum on the model marked X corresponds to the esophagus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. In the mouth: little to no chemical digestion of nucleic acids occurs in the mouth.
B. In the small intestine: pancreatic nucleases (DNase, RNase) and brush-border enzymes in the small intestine chemically digest nucleic acids into nucleotides and bases.
C. In the large intestine: the large intestine is primarily for water absorption and microbial fermentation, not major nucleic acid digestion.
D. In the stomach: the stomach mainly digests proteins (pepsin) and does not significantly chemically digest nucleic acids.
Correct Answer is C
Explanation
A. Type B: Type B RBCs express B antigen, so “no A and no B” would not be type B.
B. Type A: Type A RBCs express A antigen, so not correct here.
C. Type O: Type O RBCs lack both A and B antigens (so they are “no A, no B”).
D. Type AB: Type AB RBCs express both A and B antigens, opposite of “no A and no B.”
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