Endocrine Glands Flashcards
(11 cards)
where is the pituitary gland located?
beneath the hypothalamus, sits in a boney cavity
is part of the sphenoid bone
what two glands make up the pituitary gland?
Neurohypophysis
Adenohypophysis
__________ is also known as the posterior pituitary
neurohypophysis
__________ is also known as the anterior pituitary
adenohypophysis
how is the posterior pituitaryy connected to the hypothalamus?
connected by neutrons with cell bodies in the hypothalamus that end in the pituitary
How is the anterior pituitary connected to the hypothalamus?
It’s connected by a portal system which is a series of blood vessels that go directly to another organ without going through the heart
where are hormones from the neurohypophysis synthesized and released from?
the hypothalamus
where are hormones from the adenohypophysis synthesized and released from?
the anterior pituitary
What is the connection between the anterior pituitary in the hypothalamus?
The hypothalamus releases hormones called releasing hormones which are released into the hypophyseal portal system and they travel directly from the hypothalamus to the anterior pituitary and in the anterior pituitary they leave the blood vessel and bind to specific receptors that recognize them and when they activate cells, Those cells release a second hormone called the anterior pituitary hormone which enters the circulatory system
The connection between the hypothalamus and the posterior pituitary?
The posterior pituitary has two different nuclei, the nuclei produce these hormones in the neurosecretory cells The hormone is done truffle down to the anterior pituitary and are released in the Nerohypophysis. Where they are stored and A signal will cause their release of the posterior pituitary hormones into the does systemic circulation
True or false
Nerosecretory cells in the hypothalamus secretes releasing hormones or inhibitory hormones into the hypophyseal portal system
True
