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 growing until the cut is closed.

• Positive Feedback Response

• Negative Feedback Loop

Tags

NGSS.HS-LS1-3

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

a body system that controls growth and homeostasis by secreting hormones from glands.

• skeletal system
• nervous system
• endocrine sytem
• integumentary system

Tags

NGSS.HS-LS1-3

Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

What is an example of a positive feedback mechanism?

• 
• 

Tags

NGSS.HS-LS1-3

What is an example of a negative feedback mechanism?

• 
• 

Tags

NGSS.HS-LS1-3

Which system sends electrochemical messages that helps control the body's responses to internal and external changes?

• nervous

• endocrine

• digestive

• integumentary

These two body systems regulate feedback mechanisms.

• Skeletal & Muscular
• Skeletal & Endocrine
• Muscular & Nervous
• Endocrine & Nervous

Tags

NGSS.HS-LS1-3

The endocrine system communicates to the body using....

• electrical signals
• soluble gases
• digestive enzymes
• chemical hormones

Tags

NGSS.HS-LS1-3

What is the central nervous system (CNS) made up of?

• brain and spinal cord

• brain and cranial nerves

• spinal cord and spinal nerves

• cranial nerves and spinal nerves