Urethra: The urethra is the tube that carries urine from the bladder to outside of the body. In males, it has the additional function of ejaculating semen when the man reaches orgasm.When the penis is erect during sex, the flow of urine is blocked from the urethra, allowing only semen to be ejaculated at orgasm.rethra: The urethra is the tube that carries urine from the bladder to outside of the body. In males, it has the additional function of ejaculating semen when the man reaches orgasm.
Collagen plugs. Collagen is a component of connective tissue. The dentist places a sponge like material made of specially processed bovine collagen into the socket and sutures it in place. A collagen plug is a good deal less expensive than a bone graft, and the procedure for placing it is easier.ollagen is a component of connective tissue. The dentist places a sponge like material made of specially processed bovine collagen into the socket and sutures it in place. A collagen plug is a good deal less expensive than a bone graft, and the procedure for placing it is easier.
Resolved Question: I had a bovine graft and collagen plug put in an upper molar after an extraction. The bovine and plug fell out several days later, so the dentist put more bovine and once again stitched another plug in yesterday.t seems extremely important that the bovine stay in place since the dentist perforated my sinus cavity while trying to remove the tooth (before putting in the collagen & bovine). I need some sort of protective layer to protect my sinus.