Hormones - Hypothalamus and Pituitary Flashcards
1
Q
What are the hormones of the hypothalamus? (7)
A
- Growth hormone-releasing hormone
- Growth hormone-inhibiting hormone
- Corticotropin-releasing hormone
- Thyrotropin-releasing hormone
- Gonadotropin-releasing hormone
- Prolactin-releasing hormone
- Prolactin-inhibiting hormone
2
Q
What is the action of each of the hormones of the hypothalamus? (7)
GRH, GIH, CRH, TRH, GNRH, PRH, PIH
A
- GRH –> Stimulates secretion of growth hormone
- GIH –> Inhibits secretion of growth hormone
- CRH –> Stimulates secretion of ACTH (adreno…)
- TRH –> Stimulates secretion of TSH and prolactin
- GNRH –> Stimulates release of FSH and LH
- PRH –> Stimulates secretion of prolactin
- PIH –> Inhibits secretion of prolactin
3
Q
What are the hormones of the anterior pituitary? (7)
A
- Growth hormone
- Thyroid stimulating hormone
- Follicle stimulating hormone
- Leutinizing hormone
- Prolactin
- Adrenocorticotropic hormone
- Melanocyte-stimulating hormone
4
Q
What are the actions of the 7 anterior pituitary hormones?
GH, TSH, FSH, LH, Prolactin, ACTH, MSH
A
- GH –> Stimulates protein synthesis and glycogenolysis
- TSH –> Stimulates synthesis of thyroid hormones
- FSH –> Promotes sperm maturation and growth of Graafian follicle and estrogen secretion
- LH –> Synthesis of estrogen and progesterone, Stimulates ovulation, stimulates testosterone in men
- Prolactin –> Stimulates milk production and breast development
- ACTH –> Stimulates adrenal cortical hormones
- MSH –> Stimulates melanin synthesis
5
Q
What are the hormones of the posterior pituitary? (2)
A
Oxytocin Antidiuretic hormone (ADH) (Vasopressin)
6
Q
What are the actions of the 2 posterior pituitary hormones?
Oxytocin and ADH
A
Oxytocin –> release of milk and uterine contractions
ADH –> H20 Reabsorption in kidney tubules
7
Q
Pituitary hormones that’s source are the kidneys (2)
A
Angiotensin and Renin
