Pyrogens are chemicals produced by bacteria or cells of the immune system. Which part of the brain is affected by pyrogens?
Pons
Cerebral cortex
Hypothalamus
Amygdala
The Correct Answer is C
A. Pons: The pons is involved in regulating the rate and depth of breathing but is not the primary site affected by pyrogens for temperature regulation.
B. Cerebral cortex: The cerebral cortex is responsible for higher-order functions like reasoning and sensory perception but does not directly regulate body temperature in response to pyrogens.
C. Hypothalamus: The hypothalamus acts as the body’s thermostat and is directly affected by pyrogens, leading to the elevation of body temperature (fever) as part of the immune response.
D. Amygdala: The amygdala is primarily involved in emotion regulation and does not play a direct role in temperature regulation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Hymen: The hymen is a thin membrane that partially covers the vaginal opening, but it does not separate the vagina from the uterus.
B. Fundus: The fundus is the upper part of the uterus, but it does not separate the vagina from the uterus.
C. Adventitia: This is the outer layer of the uterus, but it does not serve as a separator between the vagina and uterus.
D. Cervix: The cervix is the lower part of the uterus that protrudes into the vagina and acts as a barrier separating the two structures.
Correct Answer is D
Explanation
Trabeculae: These are thin connective tissue strands that extend from the capsule of the lymph node into the interior. They help to divide the lymph node into distinct compartments or regions, which include the cortex (outer area) and medulla (inner area). This compartmentalization is important for the organization and function of the lymph node, allowing it to efficiently filter lymph and facilitate the immune response.
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