Answer: smooth
Smooth muscle is an involuntary non-striated muscle .It is divided into two subgroups; the single-unit (unitary) and multiunit smooth muscle . Within single-unit cells the whole bundle or sheet contracts as a syncytium.. Smooth muscle cells are found in the walls of hollow organs including the stomach intestines urinary bladder and uterus and in the walls …
Hollow structural section – Wikipedia
Structural integrity and failure – Wikipedia
The mesothelium is made of modified epitheliomuscular cells; in other words their bodies form part of the epithelium but their bases extend to form muscle fibers in the body wall . The mesothelium may also form radial and circular muscles on the septa and circular muscles …
A hollow organ is an internal organ that forms a hollow tube or pouch such as the stomach intestine or bladder. In the study of anatomy the term viscus refers to an internal organ. Viscera is the plural form …
Most of the muscle is smooth muscle although striated muscle predominates in its upper thir…