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.
Dental alveoli (singular alveolus) are sockets in the jaws in which the roots of teeth are held in the alveolar process of maxilla with the periodontal ligament.The lay term for dental alveoli is tooth sockets. joint that connects the roots of the teeth and the alveolus is called gomphosis (plural gomphoses).Alveolar bone is the bone that surrounds the roots of the teeth forming bone sockets a.k.a. alveolus. In mammals, tooth sockets are found in the maxilla, the premaxilla and the mandible.