Anatomy Homeostasis

During child birth a woman's body over produces a hormone called oxytocin until the baby is born. What kind of feedback loop would this be?

• Negative Feedback Loop

• Positive Feedback Loop

• Neutral Feedback Loop

• Linear Feedback Loop

Tags

NGSS.HS-LS1-3

When you are hot, your body sweats to cool you down. This means your temperature went above normal and your body sweats to counteract that change to bring you back to normal. What kind of feedback loop would this be?

• Negative Feedback Loop

• Positive Feedback Loop

• Neutral Feedback Loop

• Linear Feedback Loop

Tags

NGSS.HS-LS1-3

The 3 parts of the communication pathway to maintain homeostasis listed in order are:

• sensors, control center, effector

• effector, sensors, control center

• sensors, effector, control center

• control center, sensors, effector

These detect changes in the environment

• Control Center

• Sensors

• Communication System

• Target

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-2

This takes the messages from the sensors and is known as the control center

• Brain

• Kidney

• Liver

• Heart

Tags

NGSS.HS-LS1-3

When you are hot you....

• sweat

• shiver

• get goosebumps

• hairs stand up on arm

Positive Feedback loops are...

• Counteract changes that move above or below set values.

• more common

• regulate body temp

• Purposeful pushes above normal set values.

Tags

NGSS.HS-LS1-3

Negative Feedback loops are...

• Purposeful pushes above normal set values.

• Counteract a change to bring it back to normal set values

• Are rare

• Help with childbirth

Tags

NGSS.HS-LS1-3

True or False Blood clotting and uterine contractions are good examples of negative feedback.

• True
• False

Homeostasis

• allows for a wildly fluctuating internal environment
• is impossible in vertebrates
• is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation
• is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

Tags

NGSS.HS-LS1-3