1.67. Human Sperm http://www.ck12.org
- vas deferens: Tube that carries sperm from the epididymis to the urethra.
- semen: Fluid containing the sperm.
Summary
- Sperm are male gametes that form in the testes and mature in the epididymis.
- The head of the sperm contains the nucleus, the midpiece is packed with mitochondria, and the tail moves like
a propeller.
Practice
Use the resource below to answer the questions that follow.
- Spermatogenesisat http://www.youtube.com/watch?v=POpbN6RHOO0 (0:45)
MEDIA
Click image to the left for more content.- What produces primary spermatocytes? How many chromosomes do primary spermatocytes have?
- What produces secondary spermatocytes? How many chromosomes do secondary spermatocytes have?
- What makes spermatids? How many chromosomes do spermatids have?
Review
- What is the function of the tail of a sperm?
- Explain why sperm production is not completed when spermatids have been produced.