Classification

question 79

Multiple Choice

Classification.The following are types of chemical bonds.Answer the questions with reference to those chemical bonds.
-the bond between the NaCl

• A)hydrogen
• B)ionic
• C)covalent

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Definitions:

Atrioventricular Valve

One of the two valves that separate the atrium and the ventricle in the heart, preventing backflow of blood.

Inferior Vena Cava

The large vein that carries de-oxygenated blood from the lower and middle parts of the body into the right atrium of the heart.

Valves

Structures in the heart and veins that maintain blood flow in one direction, preventing backflow.

Coronary Artery

is a vital blood vessel that supplies oxygen-rich blood to the heart muscle itself.