Opposite of a patrilineal descent system is a matrilineal descent system, or a system of descent in which an individual's kin membership is traced through women.Again oversimplifying with some alliteration, it's one in which family descent is traced through the mamas!pposite of a patrilineal descent system is a matrilineal descent system, or a system of descent in which an individual's kin membership is traced through women. Again oversimplifying with some alliteration, it's one in which family descent is traced through the mamas!
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.
The ureter is the tube that connects each kidney to the bladder. The kidneys clean the blood and filter waste from it. This process produces a liquid waste, urine.Urine flows â¦ from the kidneys through the ureters to the bladder. The urine is stored in the bladder until a person urinates.During urination, the urine leaves the body by passing from the bladder through another tube, the urethra, which is open at one end. in humans, ureters are two pairs of long muscular tubes (about 25-30cm) that carry urine from kidneys to urinarry bladders.n example of this is a duplicate ureter, where there is an extra ureter running from a kidney to t â¦ he bladder. Uterocele is a narrowing of the ureter which could cause urine to back up into the kidneys and damage the kidney. This is usually caused by a small tumor or hernia.