Module 2 (Exam 1) Flashcards
Origin of Follicle Stimulating Hormone (FSH)
Secreted by anterior pituitary
Function of Follicle Stimulating Hormone (FSH)
Stimulates development of the ovarian follicle
Origin of Luteinizing hormone (LH)
Secreted by anterior pituitary
Function of Luteinizing Hormone (LH)
Stimulates ovulation and development of the corpus luteum
Origin of Estrogen
Secreted by ovaries
Function of Estrogen
Predominates during first half of menstrual cycle and contributes to ovarian follicle maturation
Origin of Progesterone
Secreted by the corpus luteum and placenta
Function of Progesterone
Predominates during second half of the menstrual cycle: prepares uterus for implantation and maintains pregnancy
Ampulla
outer 1/3 of the fallopian tube where fertilization usually occurs
Amnion
Inner (fetal side) of the embryonic membranes
Amniotic Fluid
Fluid surrounding the fetus in utero
Chorion
Outer (maternal side) of the embryonic membranes
Graafian Follicle
Small sac within the ovary that contains the maturing ovum
Corpus luteum
graafian follicle cells remaining after ovulation
Gestation
Period of intrauterine development from conception through birth
Human chorionic gonadotropin (hCG)
Hormone produced by the trophoblast that signals corpus luteum to secrete progesterone
Process of fertilization and implantation
- Blastocyst imbeds itself in the endometrium
- “Spotting” may occur with implantation
When is the growing organism most vulnerable to teratogens or hazordous agents?
Greatest risk is during weeks 2-8 of gestation
First Trimester Major Focus of Fetal Development
Organogenesis and differentiation of tissues into organs
Second Trimester Major Focus of Fetal Development
Fetal growth andrefinement of organ systems
Third Trimester Major Focus of Fetal Development
Fat and nutrient storage
