Which of the following statements regarding ureters is correct?
Ureters are connected inside the urinary bladder by a two-way valve.
Ureters are fibrotic tubes connecting the kidneys to the urinary bladder.
Ureters are covered by an outer layer of epithelial tissue
Ureters are extraperitoneal tubular structures.
The Correct Answer is D
a. Ureters are connected inside the urinary bladder by a two-way valve: The ureters connect to the urinary bladder through openings that act as one-way valves to prevent urine from flowing back into the ureters.
b. Ureters are fibrotic tubes connecting the kidneys to the urinary bladder: Ureters are not fibrotic; they are muscular tubes lined with a mucous membrane that propels urine from the kidneys to the bladder.
c. Ureters are covered by an outer layer of epithelial tissue: The outermost layer of the ureters is actually composed of connective tissue (adventitia), not epithelial tissue.
d. Ureters are extraperitoneal tubular structures: This is correct. Ureters are located outside the peritoneal cavity.
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Related Questions
Correct Answer is B
Explanation
a. Cricoid cartilage: This is a ring-shaped cartilage located below the thyroid cartilage, but it is not part of the glottis.
b. True vocal cords: The glottis consists of the true vocal cords (vocal folds) and the opening between them. The true vocal cords are essential for sound production.
c. "Adam's apple": This term refers to the prominent part of the thyroid cartilage, particularly in males. It is not part of the glottis.
d. Thyroid cartilage: This is the largest cartilage of the larynx and forms the front wall, but it is not directly part of the glottis.
Correct Answer is D
Explanation
a. Carrying oxygenated blood from the heart to the peripheral tissue: This describes the function of systemic arteries, not the pulmonary artery.
b. Carrying deoxygenated blood from the lungs to the heart: This describes the pulmonary veins, not the pulmonary artery.
c. Carrying oxygenated blood from the lungs to the left side of the heart: This describes the function of the pulmonary veins, not the pulmonary artery.
d. Carrying deoxygenated blood from the right side of the heart to the lungs: Correct. The pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.
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