Reproduction 3

Question 1

What are the ovaries?

Answer 1

abdomen, enclosed in a protective capsule
produces immature sex cells (eggs/ova, follicles)
produces female sex hormones estrogen and progesterone

contain fibrous connective tissue + group of cells (follicles)

Question 2

What are the follicles?

Answer 2

immature sex cells, all 400 000 present at birth
one matures and releases its egg per menstrual cycle

made of a primary oocyte (46 chromosomes undergo meiosis to form a mature oocyte or an ovum

made of granulosa cells which provide nutrients for oocyte (immature sex cell)

Question 3

What is the corpus luteum?

Answer 3

surrounding follicle cells remain in ovary and transform into the corpus leteum

secretes preganancy hormones: estrogen and progesterone

degenerates if pregnancy does not occur

Question 4

What is the fallopian tube or oviduct?

Answer 4

conducts egg to the uterus

FERTILIZATION OCCURS HERE: ectopic pregnancy if embryo grows here

egg released in the abdominal cavity sucked into the fallopian tube/oviduct

fimbria +cilia move egg to tube and uterus

Question 5

What is the uterus?

Answer 5

womb, store and nurtures fetus
oviducts enter at top and cervix at bottom

endometrium: lining with blood vessels, thickness changes with mensturation cycle

Question 6

What are the two layers of the endometrium?

Answer 6

basai (stable, no thickness change with menstruation cycle)

functional (changes with menstrual cycle)

Question 7

What is the cervix?

Answer 7

musclular band separating the vagina and uterus, holds the fetus in place

Question 8

What is the vagina?

Answer 8

birth canal, pH 4-5, upper close at cervix, elastic