Human Body Systems

Red blood cells are different from white blood cells in that they

Which of the following is NOT a type of blood vessel?

Water is _______ of a healthy person's body weight.

Which organ is a hollow, muscular organ that pumps blood to the body?

The energy your body needs comes from

What is another term for circulatory system?

What structures inside the small intestine that help absorb nutrients into the blood stream?

Which organ in the excretory system acts as a filter?

Urea is a chemical that comes from the breakdown of proteins.

The energy in food is measured in units called________.

Which part of the respiratory system starts the inhalation process?

Which is NOT a function of the Digestive System?

Which organ produces bile to help break down fats?

Which part of the digestive system does food not pass through?

One function of the respiratory system is to bring what substance into the body?

What prevents blood from flowing backwards?

Which type of digestion occurs in the mouth?

What are the upper chambers that receives blood that comes into the heart called?

The trachea, or windpipe, leads from the pharynx towards the lungs.

Digestion pushes everything __________.

What is the muscle movement in the digestive system that helps it move food along?

A protein that speeds up chemical reactions in the body are....

What is the necessary component in blood for blood to be able to clot?

Digestion begins in the stomach with the acid breaking down the food.

Which type of blood vessels carry blood AWAY from the heart?

In which part of the digestion system does the most absorption take place?

Which of the following is NOT a blood type?

What are the lower chambers that pumps blood out of the heart called?

The small piece of tissue that covers the trachea when you swallow is called_________

Which is NOT a function of the Circulatory System?