Reproductive System Lab

Front 1

testes

Back 1

main reproductive organ; make sperm; secrete testosterone and inhibin; oval shaped

Front 2

scrotal sac (scrotum)

Back 2

protective container;divided into two sacs by a frenulum; one testis per sac

Front 3

cremaster muscle

Back 3

in scrotum; contracts to pull the temperature sensitive testes toward the body; responds to temperature

Front 4

dartos muscle

Back 4

muscular folds in the scrotum; aind in maintaining temperature

Front 5

spermatic cord

Back 5

one per testis; collective it is all of the arteries, veins, nerves, lymphatic vessels, cremaster and dartos muscle, and vas deferens wrapped together in one bundle

Front 6

seminiferous tubules

Back 6

site where sperm is produced (spermatogenesis); connects to the duct system in the testes

Front 7

sperm

Back 7

male reproductive gamete, 50-150 million per ml of semen

Front 8

male infertility

Back 8

less than 20 million/ml

Front 9

semen

Back 9

sperm and seminal fluid (2.5-5 ml per ejaculate

Front 10

rete testis

Back 10

a network of ducts that contain mature sperm cells

Front 11

epididymus

Back 11

a single duct in each testis through which sperm passes

Front 12

vas deferens

Back 12

stars at the end of the epdidmus; comes out of the testes; 18 inches long; carries sperm to and connects with the urethra

Front 13

ejaculatory duct

Back 13

site of the union of duct from the seminal vesicle and vas deferens; it passes through the prostate; site of large peristaltic waves to propel sperm into the urethra

Front 14

seminal vesicle

Back 14

secretes thick fluid inot ejaculatory duct; adds 60% of semen volume

Front 15

prostate gland

Back 15

donut shaped gland under the urinary bladder; secretes more fluid into urethra (25%)

Front 16

bulbourethral (Cowper's) gland

Back 16

located uner the prostate; addes 15% of ejaculate; alters the pH of the urethra to be suitable for sperm

Front 17

urethra (male)

Back 17

common passageway for semen and urine

Front 18

penis

Back 18

male copulatory organ; composed of erectile tissue called the corpus cavernosa that is highly vascular

Front 19

erection

Back 19

arteriole blood fills the corpus cavernosa, causing it to press against veins, resulting in more blood entering than leaving and engorgement

Front 20

corpus spongiosum

Back 20

lines the penile urethra; keeps urethra open during ejaculation

Front 21

glans penis

Back 21

the enlarge tip (meatus) of the penis

Front 22

prepuce (foreskin)

Back 22

loose fitting skin covering the glans penis in uncircumcised men

Front 23

ovaries

Back 23

main female reproductive organ; produce mature oocyte (egg); secrete estrogen, progesterone, and inhibin; almond shaped

Front 24

uterin/fallopian tubes

Back 24

surround the ovary and snatch up oocyte when it is released

Front 25

fimbriae

Back 25

fingerlike projections that help sweep the oocyte into the fallopian tube

Front 26

infundibulum

Back 26

opening of the fallopian tube about which the fimbriae are arranged

Front 27

uterus

Back 27

site of menstruation, implantation of fertilized ovum, development of fetus, and labor

Front 28

cervix

Back 28

opeing to the uterus

Front 29

layers of the uterus

Back 29

perimetrium, myometrium, endometrium

Front 30

endometrium

Back 30

inner layer of uterus; highly vascular; site of embyro attachment (functional layer); shed during menstruation

Front 31

vulva (pudendum)

Back 31

general term for the external female genitalia

Front 32

mons pubis

Back 32

an elevation of fat tissue that cushions the pubic symphysis during childbirth; site of anterior pubic hair attachment

Front 33

labia majora

Back 33

two large folds of skin; homologus to the scrotum; help close the vagina

Front 34

labia minora

Back 34

medial to the labia majora; close the vestibule

Front 35

vestibule

Back 35

the region between the labia minora, contains the hymen (if present) and vaginal orifice

Front 36

clitoris

Back 36

small mass of erectile tissue and nerves; homologous to the glans penis in males

Front 37

urethra orifice

Back 37

opening to the urethra; only urine exits in females

Front 38

breasts

Back 38

secondary female sex characteristic; provide milk for newborns

Front 39

nipple

Back 39

site where milk emerges from the breast

Front 40

areola

Back 40

dark circle surrounding the nipple

Front 41

mammary glands

Back 41

modified sweat glands that produce milk

Front 42

suspensory ligament (Cooper's ligament)

Back 42

support the weight of the breast; become loose with age and excessive strain

Front 43

graafian follicle

Back 43

a mature follicle containing a secondary oocyte

Front 44

corpus luteum

Back 44

remnants of the mature follicle after ovulation; degenerates if fertilization doesn't occur; produces progesterone if pregnancy occurs

Front 45

corpus albicans

Back 45

remnants of corpus luteum after implantation does not occur