FREE PHYSIOLOGY AND STUDY GAMES ABOUT BRANDI

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FREE PHYSIOLOGY AND STUDY GAMES ABOUT BRANDI

SIZEMORE EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -35 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which of the following is not one of the basic components in a feedback control loop?

Answer:

Transmitter Question 2: Epidemiology is the study of the ________ of diseases in human populations.

Answer:

-Occurrence -Distribution -Transmission

Question 3: Negative-feedback mechanism

Answer:

-minimize changes in blood glucose levels.-maintain homeostasis -are responsible for an increased rate of sweating when air temperature is higher than body temperature.

Question 4: Local control or _______, intrinsic mechanisms often make use of chemical signals.

Answer:

autoregulation

Question 5: The relatively constant state maintained by the body is known as

Answer:

homeostasis.

Question 6: Extrinsic control usually involves which mode of regulation?

Answer:

• Nervous
• Endocrine

Question 7: Negative-feedback control systems

Answer:

oppose a change.Question 8: Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease?

Answer:

Prion Question 9: If the secretion of oxytocin during childbirth operated as a negative-feedback control loop, what effect would it have on uterine contractions?

Answer:

Oxytocin would inhibit uterine contractions.Question 10: What term describes a signal traveling toward a particular center or point of reference?

Answer:

Afferent

Question 11: The body's thermostat is located in the

Answer:

hypothalamus.

Question 12: The impact of effector activity on sensors may be positive or negative. Therefore, homeostatic control mechanisms are categorized as

Answer:

organs that are directly influenced by physiological variables or mechanism.Question 13: The body naturally changes some set points to different values at different times of the day. These daily cycles are called

Answer:

circadian cycles.

Question 14: Homeostasis can best be described as

Answer:

a state of relative constancy.Question 15: The concept that information may flow ahead to another process to trigger a change in anticipation of an event that will follow is called

Answer:

feed-forward.

Question 16: Effectors can be described as

Answer:

organs that directly influence controlled physiological variables.Question 17: Of the 11 major body systems, which is the least involved in maintaining homeostasis?

Answer:

Reproductive Question 18: Which of the following may put one at risk for developing a given disease?

Answer:

-Environment -Stress -Lifestyle

Question 19: The normal reading or range is called the

Answer:

set point.Question 20: To accomplish self-regulation, a highly complex and integrated communication control system or network is required. This type of network is called a(n)

Answer:

feedback control loop.

Question 21: The term that literally means self-immunity is

Answer:

autoimmunity.

Question 22: Processes for maintaining or restoring homeostasis are known as

Answer:

homeostatic control mechanisms.Question 23: Intrinsic control:

Answer:

is sometimes called autoregulation.Question 24: Shivering to try to raise your body temperature back to normal would be an examples of

Answer:

-the body trying to maintain homeostasis.-a negative-feedback mechanism.Question 25: Events that lead to an immune response to an infection of the formation of a blood clot are examples of

Answer:

positive feedback.Question 26: Because negative feedback control systems oppose changes that are opposite in direction to the initial disturbance, they are

Answer:

slowed or maintained in the homeostatic range.