Most hollow organs are lined with epithelial tissue for protection, as in blood vessels. In the case of the respiratory tract and the gastrointestinal tract there is an additional lining that forms a lining consisting of mucous membranes, and even cilia and goblet cells. The cilia helps move the mucus to the outside of the body and the goblet cells provide the mucus to help it move along. On average, a person produces about a quart of mucus per day in order to keep the respiratory and digestive tracts running smoothly.
Lining hollow organs, in the skin, in the eyes, and surrounding many glands
glandular epithelium are specialized for secretion. lining epithelium simply line organs like the stomach.
hydra has no specialized respiratory organs and exchanges of gases take place via simple diffusion from surface lining of the enteron on so in this way the surface lining of enteron acts as an efficient respiratory surface
Probably the lung, as it is empty to hold air that the body takes in.
Tissue??
Yes.
Lining hollow organs, in the skin, in the eyes, and surrounding many glands
glandular epithelium are specialized for secretion. lining epithelium simply line organs like the stomach.
Endothelium provides a slick, friction-reducing lining in lymphatic vessels and in all hollow organs of the cardiovascular system- blood vessels and the heart. Mesothelium is the epithelium found in serous membranes, the membranes lining the ventral body cavity and covering its organs.
hydra has no specialized respiratory organs and exchanges of gases take place via simple diffusion from surface lining of the enteron on so in this way the surface lining of enteron acts as an efficient respiratory surface
Smooth muscle that helps with peristalsis and the movement of digested material.
Organs are a collection of specialized tissues.
Lining your organs.
Probably the lung, as it is empty to hold air that the body takes in.
In your body, cells make specialized tissues; specialized tissues make specialized organs; organs control major functioning within the body.
The stomach is hollow. There are no individual organs inside the stomach.
Specialized cells that have no organelles are known as Prokaryotes.