Chemical co - ordination in the body is brought out by

The hormone that helps in the implantation of embryo is 

The endocrine gland that is present in the head:

Calcium and phosphate levels in the body are regulated by

The hormone cortisol is secreted  by

Islets of langerhans are present in 

Gland that acts as a bridge between nervous and endocrine system

Metabolism of carbohydrates, proteins and fats in body is regulated by 

Cortisol is secreted by 

If growth hormone is produced in large amounts during childhood, it results in