![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Parotid gland
The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x
![Serous acini <p>The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.OC_.Sal-5-1-ping.png)
Serous acini
The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x
![Intercalated duct <p>The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.OC_.Sal-5-2-ping.png)
Intercalated duct
The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x
![Intralobular (striated) ducts <p>The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.OC_.Sal-5-3-ping.png)
Intralobular (striated) ducts
The coalescing interlobular ducts seen here exit into the surrounding interlobular connective tissue. These larger interlobular ducts are lined by a stratified epithelium, initially stratified cuboidal, that eventually transitions into stratified columnar. 300x
![Interlobular ducts > <p>The smaller interlobular ducts are lined by stratified cuboidal epithelium (blue arrows), which becomes stratified columnar as the duct enlarges (black arrow).</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.OC_.Sal-5-4-ping.png)
Interlobular ducts >
The smaller interlobular ducts are lined by stratified cuboidal epithelium (blue arrows), which becomes stratified columnar as the duct enlarges (black arrow).
![Interlobular connective tissue <p>The smaller interlobular ducts are lined by stratified cuboidal epithelium (blue arrows), which becomes stratified columnar as the duct enlarges (black arrow).</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.OC_.Sal-5-5-ping.png)
Interlobular connective tissue
The smaller interlobular ducts are lined by stratified cuboidal epithelium (blue arrows), which becomes stratified columnar as the duct enlarges (black arrow).
![Blood vessels <p>The smaller interlobular ducts are lined by stratified cuboidal epithelium (blue arrows), which becomes stratified columnar as the duct enlarges (black arrow).</p>](https://digitalhistology.org/wp-content/uploads/2017/10/Or.Dig_.OC_.Sal-5-6-ping.png)
Blood vessels
The smaller interlobular ducts are lined by stratified cuboidal epithelium (blue arrows), which becomes stratified columnar as the duct enlarges (black arrow).