Flashcards in 19 Reproductive (Lecture) 8 Deck (92):
reproductive maturity M-12yo F-11yo
mental maturity F18-20 M?
somatic cells contain
a full compliment of chromosomes
X & Y are the 23rd
X chromosome goes dormant
Autosomes are the ____________chromosomes
Non sex chromosomes
Gametes contain how many chromosomes
cell division that reduces chromosome numbers by half
gamets found here
Where does Meiosis occur?
the eggs that die
How many eggs does a 5mo gestation female have?
How many eggs does a new born female have?
How many eggs does a female at puberty have?
What is the scrotum comprised of
it is a fibro muscular sack holds testes
*Seminiferous tubules are located where?
they are ducts inside the testes
*Seminiferous tubules are comprised of two types of cells...
Spermatogonia and Nurse cells
are stem cells the produce new male sperm cells (sex cells are dormant (non-swimming)
produce blood teste barrier. No blood is allowed in this area
Blood testis barrier
WBC's would destroy spem cells
produced by nurse cells carry sperm
Interstitial cell of the testes
The Male duct system includes
Epididymis, Spermatic cord, Ductus deferens, Ampulla, Ejaculatory duct, Inguinal canals, Urethra
Epididymis does what
Stores inactive sperm cells
connects testes to male pelvis
Ductus deferens has two parts
Ampulla thick distal end & the Ejaculatory duct which passes through the prostate sperm cells only enter during ejactulation.
openings that allow testes out of male pelvis
common passage for urine and sex cells.
When do sperm cells begin swimming?
When the come in contract with fructose
deposite 60% of volume of semin
Prostate gland contributes
30% of the volume of semen and a substance that prevents UTI
Bulbourethral glands contribute
5% of the volume of semen and an alkaline mucus that stabilizes the pH of the urethra.
from glands not including sperm cells
seminal fluid including sex cells
FSH, LH, Testosterone
comes from anterior pituitary stimulates production of sperm cells.
stimulates release of testosterone
responsible for primary and secondary sex characteristics
Cortex of an ovary
outter edge contains eggs
surrounds and protects an egg. It is the follicle that expands and grows not the egg
Medulla of ovary
no eggs in the medulla
attaches the ovary to the uterus
attaches ovary to abdominal wall
*Ampulla (latin for flask) of fallopian tube (oviduct)
second portion of the fallopian tube. It is an intermediate dilated portion, which curves over the ovary. It is the most common site of fertilization.
a fringe of tissue around the lateral end of the Fallopian tube. catches a released egg
infundibulum is between the ampulla and the fimbriae.
Together, the infundibulum and fimbria find the oocyte after ovulation.
visible medial third of the uterine tube is the isthmus of uterine tube.
Cilia inside the fallopian tube
create a current the egg rides on
Peristalsis of the fallopian tube
contractions of smooth muscle push the egg along
Uterus has three layers
Perimetrium, Myometrium, Endometrium
surrounding connective tissue
layer that grow every month part of this layer is shed every month.
Fornix of Uterus (The word 'fornix' is Latin for 'arch')
The fornices uterus are the deepest portions of the vagina, extending into the recesses created by the vaginal portion of cervix.
connects uterus to anterior pelvis
connects uterus to sacrum
Broad ligament has 3 parts
Mesovarium, Mesosalpinx, Mesometrium
ligament around ovary
ligament around fallopian tube
connects to uterus
the external genital organs of a human being and especially of a woman
this is where round ligament attaches to uterus
the rest of the round ligament attaches here
protects the vestibule
The vestibule =
opening for urine
opening to birth canal
thin covering of skin
vestibular gland ostia
opening to vestibular gland
birth canal only
lactiferous lobes (mammary glands) have
alveoli, laterferous ducts, and suspensatory ligaments
hollow spheres that make milk
transport milk toward nipple
attach mammary glands to chest wall
responsible for production of milk
release of milk during nursing the let down reflex
Pre ovulation cycle
first 14 days
gives females primary and secondary sex characteristics
release of an egg from a follicle occurs around day 14
marks the beginning of the cycle
when endomytrium is regrowing
*Corpus luteum is
an empty follicle