What is the difference between the pituitary gland and the pineal gland?
Jul 9, 2016
- Pituitary gland is located on ventral side of vertebrate brain, while pineal gland is towards dorsal side.
- Pituitary gland secretes a number of hormones controlling various organs of the body but pineal gland secretes only one hormone.
- Pituitary gland is divided in anterior and posterior parts, pineal has no such division.
- Anterior pituitary secretes Thyroid stimulating hormone, Adreno-cortico trophic hormone, Growth hormone, Follicle stimulating hormone, Luteinising hormone, and Prolactin.
Posterior pituitary secretes oxytocin and vasopressin.
Pineal gland secretes sleep inducing melatonin hormone.
In lower vertebrates, pineal gland acts as photoreceptor, i.e. it represents a third eye.