What are the psychological aspects of infertility related to sexual function?

Nov 29, 2021 ... A new eco-friendly plastic made from salmon sperm has been invented by scientists in China. Two short strands of DNA from the sperm were combined with a ... The urethra is the tube inside the penis. Once they are cut, sperm can't get into the semen or out of the body. The testes still make sperm, but the sperm die ... Ambergris is made by sperm whales and has been used by people for centuries. Find out what it is made from, how it ends up in the ocean and whether we still ... Semen or seminal fluid is the mixture of sperm and the secretions of the seminal vesicles, prostate gland, and the bulbourethral glands. Over the course of a ... PSA is an enzyme present in male semen that helps sperm motility. In addition, female ejaculate usually contains fructose, a form of sugar. Fructose is also ... Last year, a piece of news from France, which reported that the transformation of stem cells into sperm cells with a developed tail structure had been achieved ... Male fertility tests, used to test men for infertility, include semen analysis, sperm penetration assay, anti-sperm antibody testing, and others. A vasectomy works by permanently blocking the exit flow of sperm from the testicle. Because the ejaculate is primarily composed of fluid (semen), there is ... Jan 10, 2017 ... The sperm is contained in a white fluid called seminal fluid that's released by the prostate glands and seminal vesicles. Semen is a combination of both this ... Feb 28, 2023 ... Men produce several million sperm per day—about 1,000 per second. To prevent pregnancy, all of these need to be stopped from reaching an egg.