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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
There are 60,000 miles of blood vessels in every adult human.
Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
![In the communication technique of collaborating, the nurse sends the message that the nurse and pati](https://biology-forums.com/gallery/47/medium_2137_17_05_12_2_04_31.jpeg)
![Mammography. (a) A health-care professional assists the patient to ensure the breast is placed ideal](https://biology-forums.com/gallery/47/medium_14755_16_10_12_12_29_16_94441524.jpeg)