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Secretory granules

These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.

Acinus (alveolus) <p>These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.</p>

Acinus (alveolus)

These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.

- Acinar cell <p>These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.</p>

- Acinar cell

These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.

-- Secretory granules <p>These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.</p>

-- Secretory granules

These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.

-- RER <p>These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.</p>

-- RER

These pancreatic cells are arranged in spheres called acini or alveoli and accumulate secretory granules in their apical regions; the base of each cell has abundant RER. The restricted apical distribution of the granules and the basally-located RER, is an example of cell polarity, a feature commonly seen in exocrine glands. The granules eventually fuse with the plasma membrane, releasing their contents by exocytosis into the lumen of the acinus. In this example, the secretory granules contain digestive enzymes and are referred to as zymogen granules. Exocrine pancreas, 1000x.

Main Slide Acinus (alveolus) - Acinar cell -- Secretory granules -- RER