1. What role does the hypothalamus play in temperature regulation? A) It stores heat B) It detects changes in body temperature C) It cools the skin directly D) It produces sweat 2. What is the primary mechanism the body uses to cool down whe overheated? A) Shivering B) Increasing heart rate C) Sweating D) Drinking cold water 3. How do blood vessels contribute to temperature regulation? A) They constrict to keep heat in B) They do not play a role C) They dilate to release heat D) They absorb heat from the environment 4. What happens to body temperature if the hypothalamus fails to function properly? A) Body temperature remains constant B) Body temperature may rise or fall uncontrollably C) The body will overheat D) The body will become too cold

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1. What role does the hypothalamus play in temperature regulation? A) It stores heat B) It detects changes in body temperature C) It cools the skin directly D) It produces sweat 2. What is the primary mechanism the body uses to cool down whe overheated? A) Shivering B) Increasing heart rate C) Sweating D) Drinking cold water 3. How do blood vessels contribute to temperature regulation? A) They constrict to keep heat in B) They do not play a role C) They dilate to release heat D) They absorb heat from the environment 4. What happens to body temperature if the hypothalamus fails to function properly? A) Body temperature remains constant B) Body temperature may rise or fall uncontrollably C) The body will overheat D) The body will become too cold

Answer 1

1. **B) Detecta cambios en la temperatura corporal.** El hipotálamo actúa como un termostato del cuerpo, detectando las fluctuaciones de temperatura y activando mecanismos para mantenerla dentro de un rango estrecho.2. **C) Sudando.** La sudoración es el principal mecanismo de enfriamiento del cuerpo. Al evaporarse el sudor de la piel, se disipa el calor.3. **C) Se dilatan para liberar calor.** La vasodilatación, el ensanchamiento de los vasos sanguíneos, permite que fluya más sangre cerca de la superficie de la piel, lo que facilita la liberación de calor al ambiente.4. **B) La temperatura corporal puede subir o bajar incontrolablemente.** Si el hipotálamo no funciona correctamente, pierde la capacidad de regular la temperatura corporal, lo que puede provocar fluctuaciones peligrosas, tanto hipertermia como hipotermia.

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