As it travels the path it takes from the testicle to its exit in ejaculation, the spermatozoon completes its maturation.
Thus, the expelled sperm is fully formed: its DNA is compacted in the head, the mitochondria of the middle part (neck) provide it with energy and the movement of the flagellum (tail) allows it to advance through the female reproductive tract.
Read the full article on: How sperm meets egg: a journey from production to fertilization ( 43).
By Andrea Rodrigo B.Sc., M.Sc. (embryologist), Emilio Gómez Sánchez B.Sc., Ph.D. (senior embryologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Ricardo Navarro Martín M.D., M.Sc., B.Sc. (gynecologist) and Michelle Lorraine Embleton B.Sc. Ph.D. (biochemist).
Last Update: 08/09/2022
