Ingles

Body Functions and Homeostasis
Lea los dos textos a continuación y realice las actividades detalladas mas adelante:
Body Functions
Body functions are the physiological or psychological functionsof body systems. The body's functions are ultimately its cells' functions. Survival is the body's most important business. Survival depends on the body's maintaining or restoring homeostasis, a stateof relative constancy, of its internal environment.
What is Homeostasis?

More than a century ago, French physiologist, Claude de Bernard (1813-1878), made a remarkable observation. He noted thatbody cells survived in a healthy condition only when the temperature, pressure, and chemical composition of their environment remained relatively constant.
Later, an American physiologist, Walter B.Cannon (1871-1945), suggested the name homeostasis for the relatively constant states maintained by the body. Homeostasis is a key word in modern physiology. It comes from two Greek words - "homeo,"meaning the same, and "stasis," meaning standing.
"Standing or staying the same" then is the literal meaning of homeostasis. However, as Cannon emphasized, homeostasis does not mean something set andimmobile that stays exactly the same all the time. In his words, homeostasis "means a condition that may vary, but which is relatively constant." Homeostasis depends on the body's ceaselessly carryingon many activities. Its major activities or functions are responding to changes in the body's environment, exchanging materials between the environment and cells, metabolizing foods, and integratingall of the body's diverse activities.


1. Responder en español (en base al texto):
a. Defina el concepto de “body functions”
b. Explique el término “survival”
c. Quienes eran Claude de Bernardy Walter Cannon?
d. Mencione las contribuciones hechas por Bernard y Cannon con respecto a la Homeostasis.
e. Realice un resumen del término HOMEOSTASIS
2. Realice un glosario con palabras, que...