Pregnancy is an example of
Hypertrophy
Atrophy
Metaplasia
Dysplasia
The Correct Answer is A
A. Hypertrophy refers to the increase in the size of cells, leading to an increase in the size of the organ or tissue, which is evident during pregnancy as the uterus enlarges.
B. Atrophy involves a decrease in cell size, leading to a reduction in tissue mass, which is not applicable to pregnancy.
C. Metaplasia is a process where one differentiated cell type is replaced by another, typically in response to chronic irritation or inflammation, not seen in normal pregnancy.
D. Dysplasia refers to abnormal development of cells, which is not a characteristic of a normal physiological process like pregnancy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Retroviruses do indeed have RNA as their genetic material, but the key characteristic that defines them is their ability to reverse transcribe RNA into DNA.
B. While surface antigens play a role in viral entry, this does not specifically define a retrovirus.
C. Retroviruses, such as HIV, integrate their RNA into the host cell's DNA, which is a defining feature of this virus type and crucial for its replication cycle.
D. While retroviruses can lead to cell destruction over time, this is not a defining characteristic; many viruses can cause cell damage.
Correct Answer is B
Explanation
A. The vascular response initially increases permeability to allow essential cells and substances to reach the site of injury, rather than becoming impermeable.
B. Dilating blood vessels increases blood flow to the injured area, facilitating the delivery of immune cells and nutrients necessary for healing.
C. Limited perfusion contradicts the purpose of the vascular response, which is to enhance blood flow to the injury.
D. While blood vessels can constrict initially to minimize blood loss, the vascular response overall is characterized by dilation to promote healing.
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