Hormones

Hormones

Hormones are chemical substances that help to regulate processes in the body. They are secreted by glands and travel to their target organs in the bloodstream. They can be used to control human fertility and have advantages and disadvantages.

Adrenaline:

Adrenaline is made in the adrenal gland. Its target organs are the vital organs eg. the liver and the heart. It prepares the body for action

Oestrogen:

Oestrogen is produced in the ovary. Its target organs are the ovaries, the uterus, and the pituitary gland. It controls puberty and the menstrual cycle in females and stimulates the production…