Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
Where does gas exchange occur?.
A. The alveoli.
B. The bronchioles.
The bronchioles are part of the airway that leads to the alveoli, but gas exchange does not occur here.
C. The bronchus.
The bronchus is a larger airway that leads to the bronchioles and then to the alveoli, but gas exchange does not occur here.
D. The lungs.
While the lungs contain the alveoli where gas exchange occurs, saying that gas exchange occurs in the lungs is not as precise as saying it occurs in the alveoli.
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Full Explanation
Choice B rationale:
The bronchioles are part of the airway that leads to the alveoli, but gas exchange does not occur here.
Choice C rationale:
The bronchus is a larger airway that leads to the bronchioles and then to the alveoli, but gas exchange does not occur here.
Choice D rationale:
While the lungs contain the alveoli where gas exchange occurs, saying that gas exchange occurs in the lungs is not as precise as saying it occurs in the alveoli.
Similar Questions
What describes the anatomical event of ovulation?.
A. LH surge.
While an LH surge does trigger ovulation, it is not the anatomical event of ovulation.
B. Graafian follicle releases an ovum.
Ovulation is the event when the Graafian follicle ruptures and releases an ovum.
C. Blood Menstrual flow.
Blood menstrual flow is part of menstruation, which occurs after ovulation if the ovum is not fertilized.
D. Crampy abdominal pelvic pain.
Crampy abdominal pelvic pain can occur with ovulation, but it is not the anatomical event of ovulation.
Full Explanation
Choice A rationale:
While an LH surge does trigger ovulation, it is not the anatomical event of ovulation.
Choice B rationale:
Ovulation is the event when the Graafian follicle ruptures and releases an ovum.
Choice C rationale:
Blood menstrual flow is part of menstruation, which occurs after ovulation if the ovum is not fertilized.
Choice D rationale:
Crampy abdominal pelvic pain can occur with ovulation, but it is not the anatomical event of ovulation.
After passing through the glottis, inspired air travels to where next?.
A. Pharynx.
After passing through the glottis, inspired air does not travel to the pharynx. The pharynx is actually before the glottis in the airway.
B. Bronchi.
Inspired air does not travel directly to the bronchi after passing through the glottis.
C. Alveoli.
Inspired air does not travel directly to the alveoli after passing through the glottis.
D. Larynx.
After passing through the glottis, inspired air travels to the larynx.
Full Explanation
Choice A rationale:
After passing through the glottis, inspired air does not travel to the pharynx. The pharynx is actually before the glottis in the airway.
Choice B rationale:
Inspired air does not travel directly to the bronchi after passing through the glottis.
Choice C rationale:
Inspired air does not travel directly to the alveoli after passing through the glottis.
Choice D rationale:
After passing through the glottis, inspired air travels to the larynx.
What is the iron-containing component of a red blood cell?.
A. Hemoglobin.
Hemoglobin is an iron-containing biomolecule that binds oxygen and is responsible for the red color of the cells and the blood. -
B. Hematocrit.
Hematocrit is not an iron-containing component, but rather a measure of the proportion of blood volume that is occupied by red blood cells. -
C. Cytoplasm.
Cytoplasm is the fluid inside the cell where cellular components are suspended, but it does not contain iron. -
D. Nucleus.
The nucleus is not present in mature red blood cells.
Full Explanation
Choice A rationale:
Hemoglobin is an iron-containing biomolecule that binds oxygen and is responsible for the red color of the cells and the blood. -
Choice B rationale:
Hematocrit is not an iron-containing component, but rather a measure of the proportion of blood volume that is occupied by red blood cells. -
Choice C rationale:
Cytoplasm is the fluid inside the cell where cellular components are suspended, but it does not contain iron. -
Choice D rationale:
The nucleus is not present in mature red blood cells.