Human body systems

Vessels that transport blood away from the heart are called

The dome shaped muscles that expands the lungs:

What is the function of the excretory system?

Which cells are able to fight disease?

A car horn makes you jump, the sound is an example of a

The function of this organ:

Muscles found only in the heart are called

Which of the following is NOT a function of the skeletal system?

Blood vessels that are thin enough for gasses and nutrients to pass through:

This structure absorbs excess water into the blood:

Connective tissue: Bone to muscle

To exchange gasses, nutrients, and waste, all human cells needs to:

The main function of villi in the small intestine:

Nutrients enter the blood through this process:

Connective tissue: Bone to bone

Which part of the body is acid produced?

When your internal environment is kept stable despite outside changes

Where does gas exchange occur in the respiratory system?

Which is a function of the integumentary system

How do pairs of muscles work together?

Glands of the endocrine system make chemicals called..

Two body systems that work together for movement

The female hormone is called

A place in the body where two bones come together is called

Which is NOT part of the circulatory system?

Where does mechanical and chemical digestion begin?

Main function of the circulatory system:

Blood cannot flow backwards in the heart because this closes behind it

A group of cells that perform a similar function is called a(n)

Urine leaves the bladder through the..