Human Homeostasis

What is mean by homeostasis?

• Controls and coordinates body activities through chemical 
• controls and coordinates body activities through electrical impulses
• For maintenance of a steady state in the internal environment
• remove metabolic waste products from the cel

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NGSS.HS-LS1-3

What transports substances around the body?

• Blood
• Sweat
• Tears
• Urine

Homeostasis in the human body is often maintained by a: 

• neutral feedback loop 
• solar feedback loop
• positive feedback loop
• negative feedback loop

Tags

NGSS.HS-LS1-3

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

When you are cold, you shiver and your blood vessels contract, which warms you up. When you are hot, you sweat and your blood vessels expand, which cools you down.  

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

Which diagram represents an organ?

• #1
• #2
• #3
• #4

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NGSS.HS-LS1-2

Which is the largest structure?

• Cells
• Tissue
• Organ
• Organism

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NGSS.HS-LS1-2

What is the key function of the respiratory system?

• digestion of food

• allows movement

• exchanges gases

• processes energy

Which body system controls the body to maintain homeostasis?

• excretory

• nervous

• circulatory

• skeletal

Tags

NGSS.HS-LS1-3

Which organs make up the circulatory system?

• the heart, veins, blood vessels

• the brain, spinal cord, and nerves

• the kidneys, bladder, and ureters

• bones