Spider monkeys are found in many aspects of the Mesoamerican cultures. In the Aztec 260-day calendar, Spider Monkey (Nahua Ozomatli) serves as the name for the 11th day. In the corresponding Maya calendar, Howler Monkey (Batz) is substituted for Spider Monkey.
A migraine is a throbbing painful headache, usually on one side of the head, that is often initiated or triggered by specific compounds or situations (environment, stress, hormones, and many others). They occur more often in women (75%, approximately) and may affect a person's ability to do common tasks.
Diagram of Glands in the Human Body. One of the major systems in the human body is the endocrine system. This system is composed of a number of glands that communicate information and control responses throughout the body. The body is composed on two main types of glands. Exocrine glands release outside of the body (e.g., tears and sweat).