Sperm bank. Several microtubules (or straws) of cryogenically-stored sperm in a tank containing liquid nitrogen. This keeps the sperm at -196 degrees Celsius. After a sample is removed and thawed,the most healthy sperm cells are selected and used for in vitro fertilisation (IVF) to treat infertile couples. The sperm is introduced to the egg in a laboratory. If fertilisation is successful,the resulting embryo is implanted directly into the mother's uterus. Storage of frozen sperm can preserve a man's ability to have children if his fertility is threatened by a disease such as testicular cancer | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Goetgheluck, Pascal |
Bildgröße: | 5012 px × 3474 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |