Which of the following has an abundance of lymphoid tissue in the mucosa and submucosa?
Small intestine
Stomach
Large intestine
Esophagus
The Correct Answer is A
A. Small intestine, particularly the ileum, contains Peyer's patches, which are abundant lymphoid tissues in the mucosa and submucosa. These structures are part of the immune system, protecting the body from pathogens in the digestive tract.
B. Stomach: While the stomach has some lymphoid tissue, it does not have as much as the small intestine, specifically the Peyer's patches.
C. Large intestine has lymphoid nodules, but it does not contain as much lymphoid tissue as the small intestine.
D. Esophagus has very little lymphoid tissue compared to the small intestine, as its primary function is to transport food rather than participate in immune defense.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. To the lining of the uterine tube: If an embryo attaches to the uterine tube, it results in an ectopic pregnancy, which is not typical or safe.
B. To the myometrium: The myometrium is the muscular layer of the uterus and is not the usual site of embryo attachment.
C. To the perimetrium: The perimetrium is the outermost layer of the uterus and is not involved in embryo implantation. This is incorrect.
D. To the endometrium: The endometrium is the inner lining of the uterus, where the embryo typically implants and attaches. This is the correct answer.
Correct Answer is D
Explanation
A. ADH (antidiuretic hormone) promotes water retention by increasing water reabsorption in the kidneys. Estrogen does not mimic the action of ADH.
B. Natriuretic peptide promote sodium excretion, which leads to water loss, not retention. Estrogen does not mimic this action.
C. Oxytocin is primarily involved in labor and lactation, not water retention. Estrogen does not mimic oxytocin's effects.
D. Aldosterone promotes sodium and water retention by increasing sodium reabsorption in the kidneys. Estrogen can mimic the action of aldosterone, leading to water retention during certain phases of the menstrual cycle.
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