Which of the following provides fetal nutrition and secretes hormones that regulate pregnancy and fetal development
The endometrium
The placenta
The blastocyst
The myometrium
The Correct Answer is B
A. The endometrium is the inner lining of the uterus that supports the embryo after implantation, but it does not provide direct fetal nutrition or secrete hormones for fetal development.
B. The placenta is the organ that provides fetal nutrition, gas exchange, and waste removal. It also secretes hormones such as human chorionic gonadotropin (hCG), progesterone, and estrogen, which are essential for maintaining pregnancy and supporting fetal development.
C. The blastocyst is the early stage of the embryo that implants into the endometrium, but it does not provide fetal nutrition or secrete pregnancy-regulating hormones.
D. The myometrium is the muscular layer of the uterus responsible for contractions during labor, but it does not provide fetal nutrition or secrete hormones.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. K+: Potassium (K+) is the most abundant cation in the intracellular fluid (ICF). This is the correct answer.
B. Ca2+: Calcium (Ca2+) is not the most abundant cation in the ICF; it is found in lower concentrations within cells compared to potassium.
C. Cl-: Chloride (Cl-) is the most abundant anion in the extracellular fluid (ECF), not in the intracellular fluid.
D. Na: Sodium (Na) is the most abundant cation in the extracellular fluid (ECF), not in the intracellular fluid.
Correct Answer is A
Explanation
A. Small intestine; small intestine: Both amino acids and monosaccharides are absorbed in the small intestine, and fatty acids are also absorbed in the small intestine, where they are reassembled into triglycerides and incorporated into chylomicrons.
B. Small intestine; liver: Amino acids and monosaccharides are absorbed in the small intestine, but fatty acids are absorbed in the small intestine, not directly in the liver.
C. Stomach; small intestine: Amino acids and monosaccharides are absorbed in the small intestine, not the stomach, and fatty acids are absorbed in the small intestine, not the stomach.
D. Stomach; large intestine: Amino acids and monosaccharides are absorbed in the small intestine, and fatty acids are absorbed in the small intestine, not the stomach or large intestine.
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