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If a gland
A gland is an organ in an animal's body that synthesizes a substance for release of substances such as hormones or breast milk, often into the bloodstream or into cavities inside the body or its outer surface .- Types :...
retains its shape as a tube throughout it is termed a tubular gland
Tubular glands are further classified as one of the following:
| "simple tubular" or "simple straight tubular" or "straight tubular"
| if there is no division
The large intestine is the third-to-last part of the digestive system — — in vertebrate animals. Its function is to absorb water from the remaining indigestible food matter, and then to pass useless waste material from the body...
(Crypts of Lieberkühn
In histology, an intestinal crypt is a gland found in the epithelial lining of the small intestine and colon...
), uterine glands
In the uterus are the tube-like uterine glands, lined by ciliated columnar epithelium.They are of small size in the unimpregnated uterus, but shortly after impregnation become enlarged and elongated, presenting a contorted or waved appearance.-Function:...
| "simple branched tubular" or "compound tubular"
| if branching occurs
The stomach is a muscular, hollow, dilated part of the alimentary canal which functions as an important organ of the digestive tract in some animals, including vertebrates, echinoderms, insects , and molluscs. It is involved in the second phase of digestion, following mastication .The stomach is...
| "coiled tubular" or "simple coiled tubular"
| if the gland is coiled without losing its tubular form
|| sweat gland
Sweat glands, or sudoriferous glands, are small tubular structures of the skin that produce sweat. There are two kinds of sweat glands:...