Study Guide: Homeostasis

Description

Anatomy & Physiology I (Lecture Exam 1: Org. of the Body, Cell Struct/Function/Dev) Quiz on Study Guide: Homeostasis, created by Alexandra Bozan on 23/01/2017.
Alexandra Bozan
Quiz by Alexandra Bozan, updated more than 1 year ago
Alexandra Bozan
Created by Alexandra Bozan almost 8 years ago
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Resource summary

Question 1

Question
Homeostasis can be defined as the
Answer
  • relatively constant state maintained by the body
  • overall contribution of an organ system
  • external stimuli that evoke a disruption to an organism
  • lack of cytoplasm within a plasma membrane

Question 2

Question
Which of the following is not a component of a feedback control loop?
Answer
  • sensory mechanism
  • integrating, or control, center
  • effector mechanism
  • stressor stimulator

Question 3

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Negative feedback control systems:
Answer
  • oppose a change
  • accelerate a change
  • ignore a change
  • none of the above

Question 4

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Positive feedback control systems
Answer
  • oppose a change
  • accelerate a change
  • ignore a change
  • none of the above

Question 5

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After food enters the stomach, [blank_start]feed-forward[blank_end] occurs to increase secretions and assist with digestion in the small intestine.
Answer
  • feed-forward
  • negative feedback
  • positive feedback
  • extrinsic control

Question 6

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Any given physiological parameter will never deviate beyond the set point.
Answer
  • True
  • False

Question 7

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In the thermostatically regulated furnace example of negative feedback, the furnace functions as the sensor.
Answer
  • True
  • False

Question 8

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Negative feedback systems are inhibitory.
Answer
  • True
  • False

Question 9

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The process of childbirth - in which the baby's head causes increased stretching of the reproductive tract, which in turn feeds back to the brain, thus triggering the release of oxytocin - is an example of positive feedback.
Answer
  • True
  • False

Question 10

Question
When cold weather causes the body temperature to decrease, feedback information is relayed through the nerves to the "thermostat" in a part of the brain called the thalamus.
Answer
  • True
  • False

Question 11

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[blank_start]Symptoms[blank_end]: subjective abnormalities [blank_start]Pathology[blank_end]: study of disease [blank_start]Syndrome[blank_end]: collection of different signs and symptoms that present a clear picture of a pathological condition [blank_start]Etiology[blank_end]: study of factors involved in causing a disease [blank_start]Signs[blank_end]: objective abnormalities [blank_start]Idiopathic[blank_end]: undetermined causes [blank_start]Endemic[blank_end]: disease native to a local region [blank_start]Acute[blank_end]: symptoms appear suddenly and for a short period [blank_start]Pandemic[blank_end]: affects large geographic regions [blank_start]Pathogenesis[blank_end]: actual pattern of a disease's development
Answer
  • Symptoms
  • Pathology
  • Syndrome
  • Etiology
  • Signs
  • Idiopathic
  • Endemic
  • Acute
  • Pandemic
  • Pathogenesis

Question 12

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[blank_start]Pathophysiology[blank_end] is the organized study of the underlying physiological processes associated with disease.
Answer
  • Pathophysiology

Question 13

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Many diseases are best understood as disturbances of [blank_start]homeostasis[blank_end].
Answer
  • homeostasis

Question 14

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Altered or [blank_start]mutated[blank_end] genes can cause abnormal proteins to be made.
Answer
  • mutated

Question 15

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An organism that lives in or on another organism to obtain its nutrients is called a [blank_start]parasite[blank_end].
Answer
  • parasite

Question 16

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Abnormal tissue growths may also be referred to as [blank_start]tumors[blank_end].
Answer
  • tumors

Question 17

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The body's ability to continuously respond to changes in the environment and maintain consistency in the internal environment is called
Answer
  • homeostasis
  • superficial
  • structural levels
  • none of the above

Question 18

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When you experience a bacterial infection, your immune system sends chemicals to signal the brain's hypothalamus to "turn up" the [blank_start]set point[blank_end] temperature, causing your body to shiver.
Answer
  • set point
  • effector
  • sensor
  • feed forward

Question 19

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Which of the following is not a homeostatic control system?
Answer
  • positive feedback
  • negative feedback
  • fast forward
  • variable feedback

Question 20

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the hypothalamus is the body's
Answer
  • thermostat
  • transmitter
  • positive feedback control system
  • effector

Question 21

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A disease that is native to a local region is referred to as being
Answer
  • epidemic
  • pandemic
  • endemic
  • idiopathic

Question 22

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Processes for maintaining or restoring homeostasis are known as [blank_start]homeostatic[blank_end] [blank_start]control[blank_end] [blank_start]mechanism[blank_end].
Answer
  • homeostatic
  • control
  • mechanism

Question 23

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[blank_start]Feed-forward[blank_end] is the concept that information may flow ahead to another process to trigger a change in anticipation of an event that will follow.
Answer
  • Feed-forward

Question 24

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[blank_start]Intrinsic[blank_end] [blank_start]control[blank_end] mechanisms operate at the tissue and organ levels.
Answer
  • Intrinsic
  • control

Question 25

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Tiny, primitive cells that lack nuclei and may cause infection are [blank_start]bacteria[blank_end].
Answer
  • bacteria

Question 26

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An inherited trait that puts one at greater than normal risk for development of a specific disease is a [blank_start]genetic[blank_end] [blank_start]factor[blank_end].
Answer
  • genetic
  • factor

Question 27

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If the body's homeostatic system is working properly, an increase in blood glucose will stimulate physiological reactions to cause an opposing effect or a decrease in blood glucose.
Answer
  • True
  • False

Question 28

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During the birth of a baby, oxytocin is released to stimulate labor. This is an example of positive feedback.
Answer
  • True
  • False

Question 29

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The formation of a blood clot is an example of a negative feedback.
Answer
  • True
  • False

Question 30

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Mechanisms that operate at the cell level are known as intracellular control mechanisms.
Answer
  • True
  • False

Question 31

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A secondary infection, such as pneumonia with an AIDS patient, is referred to as an opportunistic infection.
Answer
  • True
  • False

Question 32

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The thermostat of the brain is the [blank_start]hypothalamus[blank_end].
Answer
  • hypothalamus
  • thalamus

Question 33

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The hormone that stimulates contractions during labor is [blank_start]oxytocin[blank_end].
Answer
  • oxytocin
  • progesterone

Question 34

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Intrinsic control mechanisms are sometimes called [blank_start]autoregulation[blank_end] or circadian rhythms.
Answer
  • autoregulation
  • circadian rhythms

Question 35

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[blank_start]Prions[blank_end] are proteins that convert proteins of the cell into different proteins.
Answer
  • Prions
  • Protozoa

Question 36

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[blank_start]Young adulthood[blank_end] is the period of greatest homeostatic efficiency.
Answer
  • Young adulthood
  • Infancy
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