Fill in the blanks: Internally, the penis contains three cylindrical erectile bodies, the paired ________ and the ________ .

Mr. Hassan has recently started getting up during the night to urinate and has also noticed that he is having trouble emptying his bladder. He has made a doctor's appointment, but his wife has already told him that the doctor will want to check his prostate. Do you think his wife is correct? Explain your answer.

The corpus spongiosum surrounds which structure in the male reproductive system?

What are the three regions of the male urethra?

The second meiotic division is very similar to mitosis. How would you explain the differences between the first meiotic division and mitosis?