Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
Acrosome
|
protein-filled vesicle containing several enzymes that cover the tip of the nucleus in sperm
|
|
|
Androgen-binding protein
|
binds the testosterone secreted by the Leydig cells and crosses the sertoli cell barrier to enter the tubule; maintains a high concentration of testosterone in the lumen of the tubule
|
|
|
Bulbourethral gland
|
contrubte libricating mucoid secretions; lie below prostate and drain into urethra just after it leaves the prostate
|
|
|
Dihydrotestosterone
|
more potent than testosterone
|
|
|
Ejaculation
|
discharge of semen from the penis
|
|
|
Ejaculatory duct
|
fromed by the joining of the two vas deforens and seminal vesicles
|
|
|
Emission
|
emptying the sperm and glandular secretions into the urethra
|
|
|
Epididymis
|
Loosely attached to the outside of the testes
|
|
|
Erection
|
rigid penis
|
|
|
5 alpha reductase
|
enzyme that catalyzes the conversaion of testosterone to DHT
|
|
|
Leydig cell
|
cells that synthesize and release testosterone
|
|
|
libido
|
sex drive
|
|
|
nitric oxide
|
relaxes arterial smooth muscle
|
|
|
Orgasm
|
rhythmical muscular conractions during ejaculation associated with intense pleasure
|
|
|
Primary spermatocyte
|
cells that result from the final mitotic division of spermatogenesis
|
|
|
Prostate gland
|
donut-shaped gland below the bladder and surrounding the upper part of the urthra into which it secretes fluid
|
|
|
Puberty
|
period during which reproductive organs mature and reproduction becomes possible
|
|
|
Rete testes
|
network of interconnected tubes that are formed from the seminiferous tubules from different areas of a testis
|
|
|
Scrotum
|
outpouching of the abdominal wall divided into 2 sacs for each testis
|
|
|
Secondary spermatocyte
|
formed from the meiotic division of the primary spermatocyte - undergoes a 2nd meiotic division to form spermatids
|
|
|
Semen
|
prostate gland and seminal vesicle fluid and sperm cells
|
|
|
Seminal vesicle
|
two large glands behind the bladder
|
|
|
Seminiferous tubule
|
tiny, convoluted sites of sperm formation in testes
|
|
|
Sertoli cells
|
2nd type of cell in the seminiferous tubules
|
|
|
sertoli cell barrier
|
prevents the movement of many chemicals from the blood into the lumen of the seminiferous tubule and helps retain luminal fluid
|
|
|
Spermatic cord
|
binds the vas deferens and the blood bessels and nerves supplying the testes together
|
|
|
Spermatid
|
produced from 2nd meiotic division, each containing 23 one-chromatid chromosomes
|
|
|
Spermato genesis
|
sperm formation
|
|
|
Spermatogonium
|
undifferentiated germ cells
|
|
|
Vas deferens
|
large, thick walled tube lined with smooth muscle
|
