What organ releases bile to help the body digest fats?

Which organ has villi which helps the body absorb nutrients?

Which is the correct order of organization going smallest to largest?

Which organ system contains the largest organ in your body?

Which organ connects your mouth to your stomach?

Which body system is responsible for making new blood cells?

Which kind of blood cells transport gases and nutrients to the cells in your body?

These blood vessels carry oxygenated blood away from the heart to the rest of the cells in your body

These blood vessels carry deoxygenated blood into the heart

Major muscle of the circulatory system that pumps blood throughout the body

The main purpose of the excretory system is to

Which two systems work together to ensure that all the cells in your body receive oxygen

What are the main two organs of the excretory system?

The main function of white blood cells is to

What is the correct path of digestion?

What system(s) help your body move?

Which system produces hormones?

What are the tiny blood vessels that are used for gas exchange called?

The largest organ of the human body is the

Lymph nodes store and release

This system helps regulate body temperature and protects an organism from infection

White blood cells

What body system sends messages to the other parts of the body using electricity?

Testosterone and Estrogen are hormones produced by the body to encourage growth and development in humans. What two body systems are working together?

Which body system filters blood through the kidneys and transports waste out of the body?

The diaphragm muscle pulls air in to the lungs. What two body systems are working together?

Your spinal cord sends a signal to your hand to move. What two body systems are working together?

Red bone marrow produces red blood cells. What two body systems are working together?

A sphincter muscle relaxes allowing urine to be expelled from the body. What two body systems are working together?

Homeostasis keeps which of these balanced?

Homeostasis is

Insulin decreases blood glucose levels to get them back to normal. This an example of what kind of feedback?

During childbirth, a woman's body will release a hormone called oxytocin which stimulates uterine contractions and speeds up labor. Is this an example of negative or positive feedback?

If blood pressure rises too high then the nerves relay the message to the brain. The brain then slows down the heart rate and dilates the blood vessels. This lowers the blood pressure back to normal. Is this an example of negative or positive feedback?

When you get a cut and begin to bleed chemicals signal for your body to produce platelets that help stop the bleeding. Your body will continue producing platelets until the wound is sealed. Is this an example of negative or positive feedback?