Reproduction Flashcards
gametes
sex cells
gonads
specialised sex organs
zygote
cell resulting from male gamete and female gamete
primary sex organs
produce gametes
secondary sex organs
store gametes, bring them together for fertilisation, support the developmenting baby
testes
the male sex organ the produces sperm and the hormone testosterone
spermatozoa (sperm)
male gametes
scrotum
the pouch outside the abdominal cavity in which the testes are located
lobules
a compartment within the testis that contains seminiferous tubules
seminiferous tubules
A tightly coiled duct, located in the testis, where sperm produced
interstitial cells
a cell located in the mature testis; secretes testosterone
epididymus
a highly folded tubule behind each testis in which the sperm mature
vas deferens
the tube that carries the sperm away from the testis
urethra
the duct that carries urine from the bladder to the exterior
semen
the liquid the nourishes and aids the transport of sperm
seminal vesicles
a pair of pouch-like organs that secrete a thick fluid which is a major part of semen
prostate gland
a single gland that surrounds the urethra just below the bladder; it secretes a fluid that becomes part of the semen
bulbo-urethral glands
one of a pair of small yellow glands that secrete a lubricating fluid into the urethra
erectil tissue
spongy tissue in the penis which fills with blood to bring about erection of penis
ovaries
the organs in which female gametes are produced
ova
female gametes; mature egg cells
stroma
connective tissue in the ovary
germ cells
cells in the ovary that are able to develop into ova
follicle
a layer of cells enclosing germ cell in ovary
uterine tube; fallopean tube
the tube that carries the egg from the ovaries to the uterus
fimbriae
the finger-like projections of the uterine tube
uterus; womb
the hollow, pear-shaped organ situated between the urinary bladder and the rectum in females
endometrium
the soft mucous membrane lining the uterus
cervix
the neck of the uterus, leading into the vagina
vagina
the canal leading from the to the exterior of the female body
hymen
the fold if tissue that covers the external opening of the vagina
vulva
the region comprising the external genitalia of the female
labia majora
the fleshy folds of skin lining the opening to the vagina and urethra
clitoris
the erectile organ of the female; it is equivalent to the penis on males
diploid
A cell in which the chromomes exist in pairs; 2n
haploid
A cell having half the usual number of chromosomes; egg or sperm; n
spermatogenesis
the formation and development of the spermatoza
spermatogonia
Immature cells lining the seminiferous tubules
primary spermatocytes
Diploid cells that undergo the first division of meiosis to produce secondary spermatocytes
secondary spermatocytes
Haploid cells the undergo the second division of meisos to produce spermatids
spermatids
Haploid cells produced from spermatogonia by meiosis; they mature to for spermatozoa
oogensis
The formation and development of the ovum within the ovary
oogonia
The egg mother cells located in the ovaries
primary follicle
A dormant egg within the ovary
secondary oocyte
Haploid cells that undergo meoisis to produce ova
first polar body
The smaller of two unequal cells formed when the primary oocyte divides during the first division of meiosis
second polar body
The smaller of two unequal the secondary oocyte divides during the second of meisosis
