Reproduction systems Flashcards
(35 cards)
When does sexual maturity occur?
after Puberty
During puberty which glands are stimulated?
Hypothalamus and pituitary glands
what do the Hypothalamus and pituitary glands do in puberty?
starts the process of sexual characteristics and reproductive system
What hormone does the hypothalamus produce?
follicle-stimulating hormone
FSH
What hormone does the pituitary gland produce?
Luteinizing hormone
LH
Purpose of ovarys
contains a set amount of eggs (around 22 million) at rest till puberty, every 28 days an increase of FSH stimulates a potential egg to begin maturing.
Each developing egg is surrounded by a group of cells (a follicle) that helps the egg mature. then ruptures through the orvry wall (ovulation) travels through the fallopian tube.
Purpose of fallopian tubes
The primary function of the fallopian tubes is to transport eggs from the ovary to the uterus. It is also where the egg is fertilized.
Purpose of uterus
Functions of the uterus include nurturing the fertilized ovum that develops into the fetus and holding it till the baby is mature enough for birth.
Purpose of cervix
The cervix serves as a passageway in and out of the uterus. It widens during childbirth to allow the baby to pass through, and it lets menstrual blood leave the vagina. Sperm travels through the cervix to the uterus.
Purpose of vagina
The vagina allows for sexual intercourse and birth.
What hormone does FSH and LH stimulate in females
Estrogen
What does estrogen do?
Controls the develments of sexual characterstics
What hormone stimulates testosterone in males
LH
WHat does testosterone do?
Produces sperm cells, controls developments of male sexual characteristics
During sexual intercourse what glands are stimulated to create sperm?
Prostate gland, bulbourthos gland, seminal vesical secrete fluid.
how do males create sperm?
the testes create sperm, then it is moved to the epididymis to mature.
WHat is peristalsis?
involuntary smooth muscle contraction (Ejactulation)
Three stages of the menstrual cycle?
Flow phase
follicular phase
Luteal Phase
Flow phase
uterus lining and some blood flow out of the body
follicular phase
Increases in FSH and LH cause ovilation; increases in estrogen cause lining of uterus to thicken
Luteal Phase
Releases of progesterone and estrogen stops production of FSH and LH and increases blood vessels in the lining of the uterus.
Male reproductive cycle
Sperm production starts with the hypothalamus stimulated the pitutary gland to relase FSH which is picked up by the LH which finally begin to produce testosterone.
FIve major stages of fetal development
the zygote
the blastocyst
the embryo
the fetus
the newborn
The zygote
it is the result of the union between a sperm and egg. The zygote divided over and over through the process of mitosis