The body temperature rises when someone has a fever.

Question

Want to see the full answer?

Answer 1

Question

Chapter 21, Problem 10MC

Summary Introduction

Introduction:

The body temperature rises when someone has a fever.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Which of the following statements is NOT true of a fever?a. Temperature is regulated by chemicals that reset the body's thermostat to a higher setting.b. The higher than normal body temperature impairs the functions of some bacteria.c. The higher than normal body temperature is always harmful.d. The higher temperature impairs leukocytes andantibody production.e. Both c and d. Which of the following statements is NOT true of antibodies?a. They bind to foreign antigens, making them susceptible to being engulfed by phagocytes.b. They serve as specific binding sites on B cells.c. An antibody is usually able to bind to a variety of different types of antigensd. They are composed of two heavy chains and two light chains.

About fever, it is CORRECT to affirm that: Fever is beneficial because it increases the metabolic activity of immune cells, which can kill microbes faster. Any increase in body temperature is considered fever. Cytokines cause the hypothalamus to release prostaglandins that reset the hypothalamus' thermostat to a higher temperature. LPS is a pyrogen and can induce fever.

Read the situation below and draw a diagram or illustration on how a fever happens. When bacteria are destroyed by leuckocytes, pyrogens are released into the blood. Pyrogens reset the body’s thermostat to a higher temperature, resulting in fever. How might pyrogens cause the body temperature to rise? The hypothalamus maintains the set point for body temperature through reflexes that cause vasodilation and sweating when the body is too warm, or vasoconstriction and shivering when the body is too cold. It responds to chemicals from the body. When a bacterium is destroyed by phagocytic leukocytes, chemicals called endogenous pyrogens are released into the blood. These pyrogens circulate to the hypothalamus and reset the thermostat. This allows the body’s temperature to increase in what is commonly called a fever. An increase in body temperature causes iron to be conserved, which reduces a nutrient needed by bacteria. An increase in body heat also increases the activity of the animal’s…