1/47
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
What hormone is responsible for ovulation
Luteinizing hormone
What hormone inhibits FSH secretion and what cells secrete it
Inhibin secreted by the granulosa cells
What cells produce FSH
Gonadotroph cells in the anterior pituitary
Folliculogenesis
The process of follicle development that begins at puberty
Preantral stage: 290 days, development of primordial follicle to late secondary follicle
Antral stage: 65 days, antral follicle to mature follicle, regulated by FSH and LH
What cells secrete HCG
Syncytiotrophoblasts
What helps with expulsion of the fetus
Contractions and cervical dilation
What stage of human development does implantation occur
Pre-embryonic stage around day 7
Where is relaxin produced
Corpus luteum and placenta
What gland is responsible for lubrication during sex
Greater vestibular glands
What is the source of estrogen and progesterone during the last 7 months of pregnancy
Placenta
Gonadotropins are produced by what part of the brain
Hypothalamus
What do gonadotropins do
Stimulate anterior pituitary
What is corpus luteum and what hormones produce it
Remnants of the follicle, produced by estrogen and progesterone
Difference between prolactin and oxytocin
Prolactin: milk production
Oxytocin: milk ejection
What does tunica albungia consist of
Dense CT capsule deep to germinal epithelium
What is progesterone’s significance along the uterus
Prepares and maintains the uterus for potential implantation
Menarche
First menstrual cycle
Precocious puberty
Signs of puberty much earlier than normal due to brain injury, pituitary/gonad tumor
What hormone is the basis of pregnancy diagnosis
Human Chorionic gonadotropin (hCG)
What tissues are the target of prolactin
Mammary glands (acini proliferation/branching of lactiferous ducts)
What is the most significant cause of hemorrhoids during pregnancy
Compression of the abdominal blood vessels by the fetus
What are the secretory units that produce milk
Mammary glands
What is the normal function of the uterine tubes
transport ovulated oocytes to uterus
Femur is derived from
mesoderm
True labor
uterine contractions that increase in intensity and regularity, resulting in changes to the cervix, hypothalamus starts to secrete oxytocin
What day does implantation occur
Day 7-9
Where does neurulation occur
ectoderm
Gastrulation results from the formation of
the primitive streak (thin depression on surface of the epiblast)
Implantation
Blastocyst enters lumen of uterus by end of first week, zona pellucida around the blastocyst breaks down, blastocyst burrows into the endometrium
Structures that sperm penetrates during fertilization
Corona radiata and zona pellucida
External Os
Inferior opening of the cervix into the vagina, covered by nonkeratinized stratified squamous epithelium, has a mucus plug
What is the function of the uterus
Implantation site for pre-embryo, supports, protects, nourishes developing embryo, ejects fetus at birth, contracts and sheds lining if oocyte is not fertilized, receives blood from uterine arteries
What are the different structures of the uterus
Fundus: superior region between attachments of uterine tubes
Body: middle region
Isthmus: narrow constricted inferior region
Cervix: inferior most part, projects into vagina
What type of oocyte is found in a female infant
oogonia (primary oocyte)
How do the external and internal genitalia develop
Internal: degeneration of mesonephric ducts, development of paramesonephric ducts (8-20), caudal ends fusing, urogenital sinus
External: Urogenital folds, genital tubercle, labioscrotal swellings, later structures (week 12-20)
What hormone is secreted by the placenta to cause darkening of the linea alba
Melanocyte-stimulating hormone
During labor, what kind of feedback loop is happening
positive
What structure are nutrients and wastes exchanged between mother and fetus
placenta
What hormones are involved in labor
Estrogen and oxytocin
What changes occur during pregnancy in the respiratory system
Expanding uterus prevents diaphragm from fully descending and lungs from fully expanding, causing dyspnea and epistaxis
progesterone increases brainstem sensitivity to CO2, lowers blood CO2 levels, facilitates diffusion of gases across the placenta
What happens during pregnancy that stops ovarian follicle development
High levels of estrogen and progesterone suppress FSH and LH secretion
What are the fingerlike structures of the placenta
Chorionic villi
What structure is an important site for early blood cell formation
Yolk sac
What is the thin membrane that secretes fluid to bathe the embryo
Amnion
What layer of the uterine wall is sloughed off during menstruation
Functional layer
What is the anterior border of the perineum
Pubic symphysis
What is the most primitive type of ovarian follicle
Primordial follicle
What type of follicle contains an oocyte
Secondary follicle