Parts of pituitary gland.
1.Pars tuberalis- It is connected to the hypothalamus.
2.Intermediate lobe or pars intermedia is marked by a cleft and in adult by cystic spaces.
3.The Anterior lobe is ectodermal and develops as out growth in Rathkes pouch.It is connected to hypothalamus by hypothalamo-hypophyseal portal system.
4.Posterior lobe- it is attached to hypothalamusby infundibular stalk.
5.The hypothalamus- It is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervoussystem to the endocrine system via the pituitary gland (hypophysis).The hypothalamus is located below the thalamus, just above the brain stem. In the terminology of neuroanatomy, it forms the ventral part of the diencephalon. All vertebrate brains contain a hypothalamus. In humans, it is roughly the size of an almond.The hypothalamus coordinates many hormonal and behavioural circadian rhythms, complex patterns of neuroendocrine outputs, complex homeostatic mechanisms,and important behaviours. The hypothalamus must therefore respond to many different signals, some of which are generated externally and some internally.[3] & [4]
2.Intermediate lobe or pars intermedia is marked by a cleft and in adult by cystic spaces.
3.The Anterior lobe is ectodermal and develops as out growth in Rathkes pouch.It is connected to hypothalamus by hypothalamo-hypophyseal portal system.
4.Posterior lobe- it is attached to hypothalamusby infundibular stalk.
5.The hypothalamus- It is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the hypothalamus is to link the nervoussystem to the endocrine system via the pituitary gland (hypophysis).The hypothalamus is located below the thalamus, just above the brain stem. In the terminology of neuroanatomy, it forms the ventral part of the diencephalon. All vertebrate brains contain a hypothalamus. In humans, it is roughly the size of an almond.The hypothalamus coordinates many hormonal and behavioural circadian rhythms, complex patterns of neuroendocrine outputs, complex homeostatic mechanisms,and important behaviours. The hypothalamus must therefore respond to many different signals, some of which are generated externally and some internally.[3] & [4]