Biology Unit 4 Human Body Systems and Homeostasis

This system carries nutrients and gases to cells AND carries away wastes.

• nervous system

• digestive system

• urinary system

• cardiovascular system

They goal of homeostasis is to:

• maintain a stable internal environment within an organism

• push organisms away from a stable internal environment

• change an organism's external environment

• match an organism's external environment

Tags

NGSS.HS-LS1-3

This system helps protect the body from bacteria and viruses.

• lymphatic system

• digestive system

• circulatory system

• endocrine system

This type of feedback mechanism pushes the body further away from homeostasis.

• positive

• negative

Tags

NGSS.HS-LS1-3

If blood pressure falls too low, the brain signals the arteries to constrict (shrink), which raises blood pressure back to the set point. What type of feedback is this?

• positive

• negative

Tags

NGSS.HS-LS1-3

What system do these organs belong to:

Hair, skin, nails

• integumentary

• skeletal

• muscular

• reproductive

What system do these organs belong to:

testes, ovaries

• integumentary

• skeletal

• muscular

• reproductive

Tags

NGSS.MS-LS3-2

What system do these organs belong to:

bones, cartilage, ligaments

• integumentary

• skeletal

• muscular

• reproductive

What system do these organs belong to:

muscles and tendons

• integumentary

• skeletal

• muscular

• reproductive

One function of this system is to protect internal organs. 

• nervous system

• respiratory system

• skeletal system

• circulatory system