Human Body System Review

Cardiac muscles protect the walls of your _______ .

This muscle is located above your knee. 

—A group of many cells of the same typethat work together to perform a certain job is called...

An artery carries blood __________________ .

—A body part that’s made up of bundles oflong fibers.

—Messages from your body travel alongnerves to the  _______________ . 

A place in the body where two bones meet. 

The heart the strongest ____________ in the human body. 

These blood cells carry oxygen.

A ______ —is the muscle in your body that enables youto inhale and exhale.

A vein carries blood _____________ . 

Digestion begins in the __________ .

—A group of tissues that do a particularjob is called a(n)...

Bones help give the body its ____________ .

The ____ is —a baglike organ in which food is mixedwith digestive juices & squeezed by muscles.

The brain controls the nervous system.

A ___________ is —a hard organ made of a hard outercovering tissue and a softer inside tissue.

These blood cells protect the body from illness.

The _____ is —a muscular tube that connects your mouthwith your stomach.

—Air travels from your mouth and nose intoyour __________.