Flashcards in Hormones Deck (11):
5 hormone signals:
1. Chemical synthesis/release
2. Survival (stay low key)
Fat soluble hormones
Steroids derived from lipids [cholesterol], estrogen, testosterone, progesterone
-Able to cross cell membrane and bind to internal receptors
Water soluble hormones
Amino acids - made of short chains
Polypeptides - long chains of amino acids
NOT able to cross cell membrane, relies on receptors to work
The hypothalamus (GnRH), pituitary gland (FSH and LH), and gonadal glands (inhibin), collectively. Connection between nervous and endocrine system.
(Anterior) Pituitary Gland
"Master" endocrine gland. Receives signal from hypothalamus and secretes FSH (follicle stimulating hormone) and LH (Luteinizing Hormone)
Releases Gonadotropin-releasing factor (GnRH) which is received by the anterior pituitary gland.
Follicle stimulating hormone.
In males, affects spermatogenesis and sertoli cells. Ihnibits LH.
In females, important for maintaining the survival of follicles.
In males, acts on leydig cells to aid in testosterone production.
In females, important for estrogen production.
Steroid vital for full closure of the scrotal sac (hypospadia).
Steroid found in leydig cells that maintain bone density and help w/ maturation of sperm in epididymis in men, and developing follicle in women.