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Reproductive Hormones Overview - Anatomy & Physiology (view source)
Revision as of 17:54, 22 August 2011
, 17:54, 22 August 2011→Follicle Stimulating Hormone (FSH)
LH is a type of glycoprotein that is produced in the '''Anterior Pituitary''' via gonadotroph cells. Their target tissue in the male are '''Leydig cells''' in the testes and in the female their target are '''Theca interna cells''' and '''luteal cells''' within the ovary. In the male LH stimulates testosterone production whilst in the female it stimulates ovulation and the formation of the corpora lutea together with progesterone secretion.
LH is a type of glycoprotein that is produced in the '''Anterior Pituitary''' via gonadotroph cells. Their target tissue in the male are '''Leydig cells''' in the testes and in the female their target are '''Theca interna cells''' and '''luteal cells''' within the ovary. In the male LH stimulates testosterone production whilst in the female it stimulates ovulation and the formation of the corpora lutea together with progesterone secretion.
===Follicle Stimulating Hormone (FSH)===
===Follicle Stimulating Hormone (FSH)===
FSH is a type of glycoprotein that is produced in the '''Anterior Pituitary''' via gonadotroph cells. Their target tissue in males are '''Sertoli cells''' within the testes and in the female '''Granulosa cells''' of the ovary. In the male FSH stimulates the secretion of '''inhibin''' which has a negative feedback directly in the anterior pituitary, whilst in the female it stimulates follicular development and oestradiol synthesis.
FSH is a type of glycoprotein that is produced in the '''Anterior Pituitary''' via '''gonadotroph cells'''. Their target tissue in males are '''Sertoli cells''' within the testes and in the female '''Granulosa cells''' of the ovary. In the male FSH stimulates the secretion of '''inhibin''' which has a negative feedback directly in the anterior pituitary, whilst in the female it stimulates follicular development and oestradiol synthesis.
===Prolactin (PRL)===
PRL is a protein that is produced from the '''Anterior Pituitary''' via '''lactotroph cells'''. In males the target tissues are the testes and the brain whilst in females the target tissue are cells located within the mammary tissues and the corpus luteum in rodents. In the male PRL induces maternal behaviour whilst it also does this in the female together with lactation and ensuring functionality of the corpora lutea in some species.
===Oxytocin (OT)===
OT is a neuropeptide (a octapeptide) which is synthesised in the '''hypothalamus''' and stored in the posterior pituitary. OT can also be synthesised by the corpus luteum. In males the target tissue for OT is smooth muscle within the epididymal tail, ductus deferens and the ampulla. In females OT targets the uterine myometrium and endometrium together with cells of the mammary glands. In the male OT stimulates PGF2α synthesis and facilitates the pre-ejaculatory movement of spermatozoa. In females, OT stimulates uterine motility and the synthesis of PGF2α from the uterus. It also begins milk 'let-down' or ejection.
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