Principles of Biomedical Homeostasis

When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. This is an example of

• negative feedback

• positive feedback

• nohomeostatic regulation

• diagnostic regulation

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NGSS.HS-LS1-3

A cell or an organ that responds to commands of the control center in negative feedback is termed a(n)

• receptor

• thermoreceptor

• hypothalamus

• effector

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NGSS.HS-LS1-3

If a response decreases a disturbance, the control system is classified as a _______ feedback system.

• deficit

• negative

• neutral

• polarized

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NGSS.HS-LS1-3

An example of a receptor in a negative feedback loop controlling body temperature would be

• temperature sensors on the skin that detect a stimulus

• sweat glands that increase secretion

• regulatory centers that send commands to an effector

• effectors that cause blood vessels to dilate

Tags

NGSS.HS-LS1-3

The condition in which the body's internal environment stays within physiological limits is

• differentiation

• growth

• homeostasis

• responsiveness

Tags

NGSS.HS-LS1-3

Which of these describes how shivering helps the body to respond to the cold

• Muscle movements cause pores in the skin to absorb heat from the air that was previously lost

• Muscle movements generate heat, which replaces heat lost to the environment.

• Muscle movements cause the blood to flow faster, which transports heat throughout the body

• Muscle movements make the water level in the body increase, which increases internal temperature.

Tags

NGSS.HS-LS1-3

A student makes the following statement: "Homeostasis is a property unique to humans that relies on negative feedback to maintain a stable internal environment in the human body." What is one problem with this statement?

• homeostasis causes conditions to become unbalanced in response to stress, not remain stable

• homeostasis relies only on positive feedback, not negative feedback

• homeostasis exists in many organisms, not just humans

• homeostasis controls the external, not the internal environment

Tags

NGSS.HS-LS1-3

Which of these is typically an effect of sweating?

• loss of glucose

• division of cells

• decrease in body temperature

• production of electrolytes

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NGSS.HS-LS1-3

Which of these actions is evidence of the body's ability to maintain homeostasis?

• applying lotion to dry skin

• feeling hungry after skipping meals

• using insulin injections to treat low blood glucose levels

• turning on air conditioner to feel cool in hot weather

Tags

NGSS.HS-LS1-3