Which of these hormones is not produced by the GI tract?

Oxytocin and vasopressin are synthesised by the pituitary.

Which of these is not a function of oxytocin?

Pepsinogen secretion is stimulated by __

Adrenaline is derived from __

Which of these hormones stimulates the secretion of bile?

What is the shape of the thymus gland?

The α-cells in the pancreas secrete which hormone?