Identify the chamber of the heart that is indicated by the arrow in the image below. Note: this must include the appropriate right or left designation for credit.
Fill in the blank
The Correct Answer is {"dropdown-group-1":"C"}
Correct answer: Right atrium
The arrow indicates the right atrium— the chamber that receives systemic venous return via the superior and inferior venae cavae.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. IgD: IgD is mainly a B-cell receptor on naïve B cells and is not the dominant secretory antibody in mucosal secretions or breast milk.
B. IgA: Secretory IgA is abundant in breast milk (colostrum) and mucosal secretions (tears, saliva, nasal fluid) and helps protect infants’ mucosal surfaces from pathogens.
C. IgE: IgE is involved in allergy and parasitic defense and is not the primary protective antibody in breast milk or mucosal secretions.
D. IgM: IgM is the first antibody produced in primary responses and is mainly intravascular; it is not the dominant secretory antibody passed in milk.
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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