Animal Repro. Hormones Box Quiz

estrogen 

graafian follicle

steriod

mating behavior, standing heat, ovulation

inhibin

graafian follicle/sertoli cells

protein

regulates FSH release

Progesterone

CL

steroid

maintain pregnancy

Relaxin

CL/Placenta

Protein

Dilate cervix/expand pelvis at parturition

Oxytocin

Cl, hypothalamus (stored in posterior pituitary)

Octapeptide

release PGF2a

Testosterone (Androgens)

Leydig cells

Steroid

male mating behavior, spermatogenesis

Glucorticoids, Corticosteroids, Cortisol

Adrenal Cortex

Steroid

induce parturition, milk synthesis (fetal stress response) 

Human Chorionic Gonadotropin

Glycoprotein

Placenta

LH-like activity

Equine Chorinic Gonadotropin

Placenta

Glycoprotein

LH activity

Estrogen/Progestins

Placenta

Steroids

Regulate placental bloodflow and maintain pregnancy

Relaxin

Placenta

Protein

relaxation/dialtioon of cervix at parturition

Placental Lactogen

Placenta

Protein

mammary growth and milk secretion

Prostaglandin F2a

Uterus endometrium, graafian follicle, seminal vesicles

lipid

regreess CL

Melatonin

Pineal gland

biogenic amine

seasonal reproduction (short/long day breeding)

FSH

anterior pituitary

glycoprotein

stimulate follicle growth

LH

anterior pituitary

glycoprotein

stimulate ovulation

Prolactin

Anterior pituitary

protein

milk synthesis

Adrencorticotropic Hormone (ACTH)

Anterior Pituitary

protein

release corticosteroids and glucocorticoids, initiates parturition

Growth hormone (somatotropin)

Anterior pituitary

protein

milk let down

IGF-1 and IGF-2 (Insulin like growth factor)

Liver

protein

steroidogenesis, fetal growth

gonadotropin releasing hormone

hypothalamus

decapeptide

release LH and FSH from anterior pituitary

corticotropic releasing hormone 

hypothalamus

peptide

release ACTH from adrenal cortex

growth hormone releasing hormone 

hypothalamus 

peptide

release of growth hormone from anterior pituitary

dopamine

hypothalamus

biogenic amine

inhibits release of prolactin from anterior pituitary

Bromocriptine

Dopamine agonist

Ergot Alkoid

blocks prolactin release form pituitary gland

Ergovaline

dopamine agonist

ergot alkoid

fescue toxicosis