Tubular Glands
Tubular Glands - Related Videos
09:47
Microdissection of Black Widow Spider Silk-producing Glands
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Cited by 18 •
2011
Here we describe an efficient strategy to remove the silk-producing glands from the abdomen of female black widow spiders. This procedure allows the rapid isolation of the seven distinct silk-producing glands in a highly purified fashion, an important process for investigators studying spider silk production and fiber assembly.
01:45
Vesicular Tubular Clusters
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2023
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi. With the help of motor proteins such...
01:28
Tubular Reabsorption and Secretion
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2025
Tubular secretion and reabsorption are two critical processes in the nephron tubule of the kidneys. When the fluid filtered from the glomerulus enters the proximal convoluted tubule, it is referred to as filtrate, and its composition changes due to tubular reabsorption and secretion. Tubular reabsorption is a selective process that starts when the filtrate enters the proximal tubules. It involves substances traveling through the transcellular route (through the tubule cell and peritubular...
05:13
Gastric Fundic Glands Isolation: A Method to Isolate Fundic Glands from Human Stomach Tissue
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2023
This video describes a method to isolate gastric epithelial cells from the human fundic tissue. The isolated epithelial cells can be used as an in vitro model to study their regulatory roles in gastric physiology and pathophysiology.
06:32
Development of Human Renal Tubular Epithelial Cell Primary Cultures in Monolayers and Three-Dimensional Conditions
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2025
Here, we describe the protocols for obtaining primary cultures of human renal tubular epithelial cells (HRTEC) from the kidney cortex to develop monolayers and three-dimensional cultures on an extracellular matrix (3D-HRTEC).
FAQs
Secretory cells synthesize the gland’s products, while the tubular arrangement provides an organized route for their discharge. This division of roles links cellular production with movement toward an epithelial surface or body cavity. Examining both components helps explain how tissue architecture supports secretion rather than treating the secretory cells as isolated functional units.
The distinction depends on whether the duct remains unbranched or divides into a network. An unbranched duct indicates a simpler structural arrangement, whereas branching creates a compound organization that can coordinate secretion from multiple tubular regions. This classification gives histologists a structural way to compare glands and describe their overall organization.
Branching organizes the relationship between secretory regions and their ducts. When ducts divide, secretion can be collected and transported through a network rather than along one uninterrupted passage. The pattern therefore provides information about how the gland is arranged and how its epithelial components contribute collectively to delivery of secretory products.
The products may include mucus, digestive fluids, or other specialized substances. Their destination depends on the gland’s epithelial arrangement: secretion may reach an epithelial surface or enter a body cavity. These differences connect glandular activity with distinct biological roles, including protection of surfaces and participation in digestion.
A practical examination begins by identifying the secretory units and tracing their associated ducts in the epithelial tissue. The observer can then determine whether the ducts remain unbranched or form a network, and relate the architecture to the likely destination and type of secretion. This approach links microscopic organization with glandular function.
Tubular glands show how epithelial cells can be arranged into coordinated structures that produce, organize, and transport secretions. Their study therefore connects microscopic architecture with digestion and protection of body surfaces. Comparing normal glandular organization with histological changes can also help frame how disease alters gland structure and function.