Question

True or false: The three layers of the smooth muscle of the urinary bladder have such complex orientations that it is difficult to discern individual layers under the microscope?

Answer 1

The three layers of the smooth muscle of the urinary bladder have complex orientations, making it difficult to discern individual layers under the microscope.

Step-by-step explanation:

The smooth muscle of the urinary bladder is composed of three layers: the inner longitudinal layer, the middle circular layer, and the outer oblique layer. These layers have complex orientations that make it difficult to discern individual layers under the microscope.

For example, in the inner longitudinal layer, the smooth muscle fibers run parallel to the long axis of the bladder. In the middle circular layer, the smooth muscle fibers encircle the circumference of the bladder. In the outer oblique layer, the smooth muscle fibers have a diagonal orientation, crisscrossing the bladder wall.

Due to the complex orientations of these layers, it can be challenging to distinguish them from one another when viewing the smooth muscle of the urinary bladder under a microscope.