System endocrinien

The system endocrinien is composed by the unit of the Organe S (endocrine Glands) which have a function of Sécrétion of Hormone S such as:

- Épiphyse
- Pituitary gland and Hypothalamus
- Thyroid
- Thymus
- Suprarenal S
- endocrine Pancreas
- Ovary S
- Testicle S

Hormones of the pituitary gland and the hypothalamus

One speaks about hypothalamo-hypophyseal Complexe. The Hypothalamus, which contains secreting Neuron S, synthesizes the Ocytocine and the Hormone anti-diurétique (ADH). These Neurohormone S is transported along the Axone S until the Neurohypophyse where they are stored. They will be poured in the blood capillary at the proper time. The Hypothalamus also has some Neuron S equipped with Axone S very short which pour factors of inhibition and of release in the capillaries of the Système carries hypothalamo-hypophyseal which joined the adénohypophyse. These factors, the libérines, are:

the hormone of salting out of the Growth hormone (GHRH)
the Corticolibérine (CRH)
the Gonadolibérine (FSH/LH-RH)
the Thyréolibérine (TRH)
the hormone of inhibition of the salting out of the Prolactin (CONK), also named Dopamine
the Somatostatine, inhibiting the release of growth hormone (GH) and the Hormone thyréotrope (TSH)

These libérines has a positive or negative effect on the stimulines secreted by the Hypophyse:

the Growth hormone (GH)
the corticotrophine (ACTH)
genital hormones, the folliculo-stimulative Hormone (FSH) and the Hormone lutéinisante (LH)
the thyréotrophine (TSH)
the Prolactin (PRL)

See too

Endocrinology
Hormone
List of hormones

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