Semen

Question 1

What does semen consist of?

Answer 1

• sperm from the testis
• seminal fluid from the sperm duct and accessory glands (e.g. prostate)

Question 2

What is the average volume of semen for an ejaculation?

Answer 2

• 2,5 to 5ml

Question 3

What is the average number of sperm ejaculated per ml?

Answer 3

• 50 to 150 million per ml
• i.e. 700 million per ejaculation

Question 4

When is semen considered infertile?

Answer 4

• when it has a sperm count of less than 20 million per ml

Question 5

What is the difference between an erection and ejaculation?

Answer 5

• an erection is the stiffening of the penis
• ejaculation is the expulsion of semen