Human Reproduction Flashcards
what are testes
male gonad
gonad
organ that produces sex cells in animals
how are testes developed
developed in body but a few weeks before birth descend into scrotum
what temp is sperm kept at and why
35 - ideal for sperm production
role of seminiferous tubules
lined with sperm producing cells
what is between tubules & its function
interstitial cells - produce testosterone
how is epididymis formed
all seminiferous tubules combine
role of epididymis
sperm are stored and matured here
another name for sperm duct
vas deferens
relationship between sperm duct and urethra
epididymis ➡️ sperm duct which brings sperm to ➡️ urethra which carries sperm and urine ➡️ out of body
glands in male body
seminal vesicle
prostate gland
cowper’s gland
role of glands in body
produce seminal fluid
what does the production of seminal fluid do for the body
nourishes sperm and provides a medium for swimming
how is semen produced
seminal fluid and sperm
role of penis
release sperm into vagina
how is sperm produced
produced by meisos
meiosis
type of cell division
- cell divides and forms 4 daughter cells with half the number of chromosomes as parent cell
how many chromosomes in parent cell
46
how many cells in daughter cell
23
sperm producing cells are ________
diploid
diploid
cells containing 2 sets of 4 chromosomes
how many chromosomes do normal body cells contain
46
symbol for diploid cells
2n
describe haploid cells
- meiosis halves number of chromosomes so sperm cells are called haploid
- contain one set of chromosomes