Study Guide: Homeostasis

Homeostasis can be defined as the

Which of the following is not a component of a feedback control loop?

Negative feedback control systems:

Positive feedback control systems

After food enters the stomach, [blank_start]feed-forward[blank_end] occurs to increase secretions and assist with digestion in the small intestine.

Any given physiological parameter will never deviate beyond the set point.

In the thermostatically regulated furnace example of negative feedback, the furnace functions as the sensor.

Negative feedback systems are inhibitory.

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.

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.

[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

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

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

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

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

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

The body's ability to continuously respond to changes in the environment and maintain consistency in the internal environment is called

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.

Which of the following is not a homeostatic control system?

the hypothalamus is the body's

A disease that is native to a local region is referred to as being

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

[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.

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

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

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].

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.

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

The formation of a blood clot is an example of a negative feedback.

Mechanisms that operate at the cell level are known as intracellular control mechanisms.

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

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

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

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

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

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