Questão 1
Questão
Homeostasis can be defined as the
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relatively constant state maintained by the body
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overall contribution of an organ system
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external stimuli that evoke a disruption to an organism
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lack of cytoplasm within a plasma membrane
Questão 2
Questão
Which of the following is not a component of a feedback control loop?
Questão 3
Questão
Negative feedback control systems:
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oppose a change
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accelerate a change
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ignore a change
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none of the above
Questão 4
Questão
Positive feedback control systems
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oppose a change
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accelerate a change
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ignore a change
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none of the above
Questão 5
Questão
After food enters the stomach, [blank_start]feed-forward[blank_end] occurs to increase secretions and assist with digestion in the small intestine.
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feed-forward
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negative feedback
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positive feedback
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extrinsic control
Questão 6
Questão
Any given physiological parameter will never deviate beyond the set point.
Questão 7
Questão
In the thermostatically regulated furnace example of negative feedback, the furnace functions as the sensor.
Questão 8
Questão
Negative feedback systems are inhibitory.
Questão 9
Questão
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.
Questão 10
Questão
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.
Questão 11
Questão
[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
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Symptoms
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Pathology
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Syndrome
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Etiology
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Signs
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Idiopathic
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Endemic
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Acute
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Pandemic
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Pathogenesis
Questão 12
Questão
[blank_start]Pathophysiology[blank_end] is the organized study of the underlying physiological processes associated with disease.
Questão 13
Questão
Many diseases are best understood as disturbances of [blank_start]homeostasis[blank_end].
Questão 14
Questão
Altered or [blank_start]mutated[blank_end] genes can cause abnormal proteins to be made.
Questão 15
Questão
An organism that lives in or on another organism to obtain its nutrients is called a [blank_start]parasite[blank_end].
Questão 16
Questão
Abnormal tissue growths may also be referred to as [blank_start]tumors[blank_end].
Questão 17
Questão
The body's ability to continuously respond to changes in the environment and maintain consistency in the internal environment is called
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homeostasis
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superficial
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structural levels
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none of the above
Questão 18
Questão
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.
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set point
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effector
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sensor
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feed forward
Questão 19
Questão
Which of the following is not a homeostatic control system?
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positive feedback
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negative feedback
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fast forward
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variable feedback
Questão 20
Questão
the hypothalamus is the body's
Questão 21
Questão
A disease that is native to a local region is referred to as being
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epidemic
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pandemic
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endemic
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idiopathic
Questão 22
Questão
Processes for maintaining or restoring homeostasis are known as [blank_start]homeostatic[blank_end] [blank_start]control[blank_end] [blank_start]mechanism[blank_end].
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homeostatic
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control
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mechanism
Questão 23
Questão
[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.
Questão 24
Questão
[blank_start]Intrinsic[blank_end] [blank_start]control[blank_end] mechanisms operate at the tissue and organ levels.
Questão 25
Questão
Tiny, primitive cells that lack nuclei and may cause infection are [blank_start]bacteria[blank_end].
Questão 26
Questão
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].
Questão 27
Questão
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.
Questão 28
Questão
During the birth of a baby, oxytocin is released to stimulate labor. This is an example of positive feedback.
Questão 29
Questão
The formation of a blood clot is an example of a negative feedback.
Questão 30
Questão
Mechanisms that operate at the cell level are known as intracellular control mechanisms.
Questão 31
Questão
A secondary infection, such as pneumonia with an AIDS patient, is referred to as an opportunistic infection.
Questão 32
Questão
The thermostat of the brain is the [blank_start]hypothalamus[blank_end].
Questão 33
Questão
The hormone that stimulates contractions during labor is [blank_start]oxytocin[blank_end].
Questão 34
Questão
Intrinsic control mechanisms are sometimes called [blank_start]autoregulation[blank_end] or circadian rhythms.
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autoregulation
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circadian rhythms
Questão 35
Questão
[blank_start]Prions[blank_end] are proteins that convert proteins of the cell into different proteins.
Questão 36
Questão
[blank_start]Young adulthood[blank_end] is the period of greatest homeostatic efficiency.