Lab 4 Flashcards
Rete testis
Functions to receive sperm from the seminiferous tubules and transport sperm to epididymis
Septum
Functions to divide testis into lobules
Lobule
Functions to contain seminiferous tubules
Seminiferous tubule
Functions as the site of spermatogenesis (sperm)
Scrotum
holds the testes and regulates temperature of the testes
Cremaster muscle
contracts in response to cold temperature to move testes closer to body to reduce heat loss
Testes
produce sperm; produce and secrete testosterone
Ductus deferens/Vas deferens
move sperm from epididymis to the prostatic urethra
Epididymis
location of sperm maturation and moves sperm from rete testis to ductus/vas deferens
Ejaculatory duct
moves sperm and seminal fluid into the prostatic urethra
Penis
deliver semen/sperm from penile urethra into the female reproductive tract
Prostate gland
produces and secretes a milky, slightly acidic fluid that aids in sperm motility and sperm viability
Bulbourethral/Cowper’s glands
produce and secrete an alkaline fluid to neutralize the urethra to protect sperm
Seminal vesicles
produce and secrete an alkaline fluid to neutralize the urethra to protect sperm and nourish sperm
Prostatic urethra
Membranous urethra
Penile urethra/Spongy urethra
allow semen and urine to exit the body
Sperm contain:
a haploid number of chromosomes (23 chromosomes) and function to fertilize the secondary oocyte
Ovary
produces ova (eggs); produces and secretes estrogens
Oviducts/Fallopian tubes/Uterine tubes
passageway for secondary oocyte to reach the uterus; passageway for sperm to reach the secondary oocyte; location/site of fertilization
Uterus
site of implantation of blastocyst; supports embryonic and fetal development; source of menses
Stratum functionalis of endometrium
discharged during menstruation; site of implantation of blastocyst
Stratum basalis of endometrium
reforms stratum functionalis after menstruation
Myometrium
contracts during childbirth
Vagina
receives penis during sexual intercourse; allows menses to exit the uterus; passageway for childbirth
Lobules
contain glandular alveoli that function to produce milk during lactation
Lactiferous ducts
drain milk from the glandular alveoli to the lactiferous sinuses
Lactiferous sinuses
collect milk during nursing
Broad ligament
supports the uterus and vagina
Ovarian ligament
anchors the ovary medially to the uterus
Round ligament
Anchors the uterus to the anterior abdominal wall
Meiosis
cellular division process that functions to form gametes (i.e. spermatids and ootids
Spermatogonium
stem cell with a diploid number of chromosomes (46 chromosomes) that will undergo meiosis to form spermatids
Spermatid
immature sperm cell with a haploid number of chromosomes (23 chromosomes) that results at the end of meiosis
Oogonium
stem cell with a diploid number of chromosomes (46 chromosomes) that will undergo meiosis to form ootids
Ootid
immature ovum with a haploid number of chromosomes (23 chromosomes) that results at the end of meiosis