Which of the following will result in active immunity?
None of the answers are correct
Antiserum administration
Vaccination
Breast feeding
The Correct Answer is C
A. None of the answers are correct is incorrect because one of the options does result in active immunity.
B. Antiserum administration involves the transfer of antibodies (passive immunity), not the activation of the immune system to produce its own antibodies.
C. Vaccination induces active immunity by stimulating the immune system to produce its own antibodies and memory cells in response to a weakened or inactivated pathogen (or its components). This prepares the body for future exposure to the actual pathogen.
D. Breast feeding provides passive immunity because the infant receives pre-formed antibodies from the mother through breast milk, but does not stimulate the infant's immune system to produce its own.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Inguinal nodes are located in the groin area, not in the knee.
B. Popliteal nodes are located behind the knee (in the popliteal fossa) and are responsible for filtering lymph from the lower leg and foot.
C. Tibial nodes are not a specific term used for lymph nodes in the knee area.
D. Mesenteric nodes are located in the abdomen and are associated with the digestive system, not the knee.
Correct Answer is B
Explanation
A. The spleen does not shrink after puberty. It remains an active part of the immune and blood filtration systems throughout life.
B. The thymus (note: it appears misspelled as "Thygus" in the question) is the correct answer. It plays a crucial role in the development of T lymphocytes (T cells) during childhood but begins to shrink and become replaced by fatty tissue after puberty—a process known as involution.
C. The liver does not shrink after puberty. In fact, it continues to grow and function in metabolism, detoxification, and digestion throughout a person’s life.
D. The cisterna chyli is a dilated sac at the lower end of the thoracic duct involved in lymphatic drainage. It does not shrink after puberty and remains functional throughout life.
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