Following ejaculation in a healthy adult, approximately 300 million sperm is present. Which percent of these sperm would be considered normal (mobile and morphologically healthy) and able to fertilize an egg?
A)
95%
B)
75%
C)
55%
D)
45%
Ans:
C
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Approximately 3 mL of semen is expressed with each ejaculate, and each milliliter is made up of about 100 million sperm. However, approximately 20% of the sperm in any ejaculate are not morphologically normal and about 25% are immobile.
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