sperm: Quick Facts

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Oct. 26, 2026

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From sea anemone to human fertility: A new research organism for understanding meiosis • Oct. 23, 2026, 2:00 PM ET (Phys.org)

Facts

Also Known As	spermatozoon • spermatozoa • spermatozoan

Photos and Videos

human sperm cells

angiosperm life cycle

Follow the development of rice-paddy fish from fertilization to hatching in a laboratory setting

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Topics

acrosome spermatophore capacitation lysin testis spermatogenesis How Do Fertility Drugs Work?germ cell semen penis urethra ovum prostate gland ductus deferens seminal vesicle scrotum bulbourethral gland ejaculatory duct

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Animal breeding: Determining sex from sperm

Key People

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Oskar Hertwig

German biologist

Male muscle, man flexing arm, bicep curl.

Facts You Should Know: The Human Body Quiz

Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.

Characteristics of the Human Body