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The ______ is the opening into the larynx. 

The ______. ________ is a double layered sac-like structure that surrounds each lung; produces lubrication to reduce lung friction during breathing. 

_______ _______ are similar in structure and function to tonsils and are found in the wall of the small intestines. 

______ is the fluid derived from interstitial fluid. It contains proteins and other important constituents that have been lost by the blood. It is transported by the lymph vessels.

Component of blood that is mostly water and proteins is _______.

The outermost layer of the heart wall is the _________.

The force exerted on a vessel by the blood inside of it is called ______ ______.

_______ is another name for high blood pressure. 

The bottom chambers of the heart whose job it is to pump blood out of the heart are called _____.

The smallest blood vessels that are found in almost all tissues of the body are ________.