Question

Ureters have three layered tubular structures, what are they?

1) Mucosa, Muscularis, Adventitia
2) Epithelium, Lamina Propria, Muscularis
3) Endothelium, Submucosa, Serosa
4) Epidermis, Dermis, Hypodermis

Answer 1

The three-layered tubular structures of the ureters consist of the Mucosa, muscularis, and Adventitia, with each layer serving a specific function related to the transportation of urine. The correct option is 1) Mucosa, Muscularis, Adventitia

Step-by-step explanation:

The ureters are multi-layered tubular structures that transport urine from the kidneys to the bladder. These layers include:

• Mucosa: This inner layer is lined with transitional epithelium and contains goblet cells that secrete mucus to protect the underlying layers.
• Muscularis: The layer of muscle within the ureter walls is composed of longitudinal and circular smooth muscles. These muscles contract in a wave-like pattern known as peristalsis to propel urine towards the bladder.
• Adventitia: It is the outermost layer consisting of collagen and fat that anchors the ureters to the surrounding tissues.

So, the correct answer to what the three-layered tubular structures of the ureters are would be 1) Mucosa, Muscularis, and Adventitia. The correct option is 1) Mucosa, Muscularis, Adventitia