A blown vein can become a _____________ when the needle injury is severe enough to cause the walls of the vein to squeeze shut of fall into themselves. Blood stops flowing through the vein.  

What is the part of the respiratory system where gases are exchanged?

Immune surveillance is a process in which _______ “nonspecifically” detect and destroy foreign cells and diseased host cells.

The Dietary Reference Intake (DRI) for sodium is 1,500 mg daily, however, these recommendations do NOT apply to ____.

Untreated chronic hypertension is often referred to as a ___________ because severe symptoms suddenly appear a decade or two after onset.

What is the common name of Procyon lotor? Fill in the blank.

“Class Activities” (discussions, quizzes, activities, homework) are worth ______% of your final course grade.

An enzyme is a protein that ____.

Identify section B on the model below. 

What is the Tolerable Upper Intake Level for calcium for adults younger than 50?