(6 Videos) 1  Inspirational basketball player Lauren Hill dies at 19. 2  2014: First college game is dying player's last. 3  2014: Terminally ill girl realizes hoop dream.  Cancer patient lives basketball 1  dream. Lauren Hill's dream game.  College athlete's dying wish granted.
Semen is normally a whitish-gray color. It's usually quite thick after ejaculation, but liquefies within 30 minutes. Changes in the appearance of semen might be temporary and not a health concern. However, sometimes these changes can be a sign of an underlying medical condition that requires further evaluation.emen is normally a whitish-gray color. It's usually quite thick after ejaculation, but liquefies within 30 minutes. Changes in the appearance of semen might be temporary and not a health concern. However, sometimes these changes can be a sign of an underlying medical condition that requires further evaluation.
Human sperm cells consist of a flat, disc shaped head 5.1 Âµm by 3.1 Âµm and a tail 50 Âµm long. The tail flagellates, which propels the sperm cell (at about 1â3 mm/minute in humans) by whipping in an elliptical cone. Head: It has a compact nucleus with only chromatic substance and is surrounded by only a thin rim of cytoplasm.