Knowledge center. Tetanus (or lockjaw) is a serious infection caused by Clostridium tetani bacteria which produce a toxin that affects the brain and nervous system.
The ovary is an ovum-producing reproductive organ, often found in pairs as part of the vertebrate female reproductive system. Ovaries are oval-shaped endocrine system glands, the group of glands that produce a variety of hormones human body needs to function appropriately.Ovaries are found in females, one on each side of the uterus. An ovum is a female reproductive cell.varies are oval-shaped endocrine system glands, the group of glands that produce a variety of hormones human body needs to function appropriately. Ovaries are found in females, one on each side of the uterus. An ovum is a female reproductive cell.
The ovary produces egg cells which is the gametes. The egg cell is large in size because it stores nutrients. The egg cell consists of half the number of chromosomes that are found in female body cells. The main function of egg cells is to join with male cells (sperm) for the purpose of reproduction. They also provide food for new cells that are made in the process. After a sperm cell fertilizes an egg cell, it becomes a zygote. The zygote becomes an embryo, and the embryo becomes a fetus if we are discussing mammals.