The islets of Langerhans are clusters of endocrine cells found in the pancreas. They secrete insulin and glucagon.
Islets of Langerhans can be found in the pancreas. These are insulin-producing cells.
I keep mine in my pancreas.
The endocrine system.
the muscular system
lymphatic system.
Because an organism is a being which contains organs and an organ system is a system of organs.
digestive system Muscular System,
The genitourinary system.
The digestive system contains the liver.
Circulatory System
Digestive system.
the digestive system
skeletal system
Circulatory System.
The olfactory system.
The endocrine system.
the muscular system
lymphatic system.
The eye contains the Retina