Select the correct statement about the ureters.
The ureter is innervated by parasympathetic nerve endings only.
Ureters contain sphincters at the entrance to the bladder to prevent the backflow of urine.
The epithelium is stratified squamous like the skin, which allows a great deal of stretch.
The ureters are capable of peristalsis like that of the gastrointestinal tract.
The Correct Answer is D
A. The ureter is innervated by parasympathetic nerve endings only: The ureters are innervated by both sympathetic and parasympathetic fibers.
B. Ureters contain sphincters at the entrance to the bladder to prevent the backflow of urine: There are no anatomical sphincters; backflow is prevented by the angle of ureter entry into the bladder wall and valve-like flaps.
C. The epithelium is stratified squamous like the skin, which allows a great deal of stretch: The ureters are lined with transitional epithelium, which allows stretching, not stratified squamous.
D. The ureters are capable of peristalsis like that of the gastrointestinal tract: Ureters have smooth muscle that contracts rhythmically to move urine via peristalsis from the kidneys to the bladder.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"A"}
Explanation
A. Stomach: The stomach mixes the food with gastric juices, converting the solid bolus into a semi-liquid substance called chyme.
B. Small intestine: The small intestine receives chyme but does not liquefy the bolus.
C. Mouth: The mouth forms the bolus through mastication and saliva, but it does not produce chyme.
D. Esophagus: The esophagus only transports the bolus via peristalsis and plays no role in liquefying it.
Correct Answer is D
Explanation
A. Decrease in the concentration of the blood plasma: A decrease in plasma concentration (hypoosmolarity) suppresses ADH, leading to less water reabsorption.
B. Decrease in the production of ADH: This would reduce water permeability of the collecting ducts.
C. Increase in the production of aldosterone: Aldosterone increases sodium reabsorption, not water permeability.
D. Increase in the production of ADH: ADH (vasopressin) increases aquaporin insertion into collecting duct membranes, enhancing water reabsorption and increasing permeability.
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