Template:Human Spermatozoa Statistics table
From Embryology
Spermatozoa | Number/Time | |
---|---|---|
Production | ||
produced / day (two testes) | 45 to 207 million | |
compare adult human red blood cell production / day | 250,000 million | |
produced / second each day (approx) | 2,000 | |
Storage | stored (epididymal reserves) up to per epididymis | 182 million |
stored extragonadal | 440 million | |
extragonadal - ductuli deferentia and caudae epididymides per ejaculation | 225 million | |
spermatozoa / gram testicular parenchyma / day (all animals approx) | 23 million | |
Transit Times | ||
through the caput | 0.72 day | |
through the corpus | 0.71 days | |
through the cauda epididymidis | 1.76 days | |
Table Data [1] See also World Health Organization reference values for human semen characteristics (2010).[2] |
- ↑ Amann RP & Howards SS. (1980). Daily spermatozoal production and epididymal spermatozoal reserves of the human male. J. Urol. , 124, 211-5. PMID: 6772801
- ↑ Cooper TG, Noonan E, von Eckardstein S, Auger J, Baker HW, Behre HM, Haugen TB, Kruger T, Wang C, Mbizvo MT & Vogelsong KM. (2010). World Health Organization reference values for human semen characteristics. Hum. Reprod. Update , 16, 231-45. PMID: 19934213 DOI.