You'll find the evaporator for a central air system located directly above the furnace in the plenum (main duct).

The main pancreatic duct needs to be 6mm in diameter in the body of the pancreas for this procedure to be possible.

He bypassed his usual paths, heading straight for the main duct, and reached cautiously out into the rushing wind.

The main pancreatic duct is formed by the fusion of the dorsal and ventral pancreas.

He could walk almost erect along the main duct.

It was easy to find an access door and enter the main vertical duct.

These lobular ducts finally converge to form the main pancreatic duct.

Normally, the two ducts will fuse together to form one main pancreatic duct; this occurs in more than 90% of embryos.

Take-offs may be fitted into round or rectangular openings cut into the wall of the main duct.

The main duct of the salivary glands then opens into the mouth.