In the USA the U.S.A

question 73

Multiple Choice

In the U.S.A., ____ Americans tend to score highest on intelligence tests.

• A)European
• B)African
• C)Asian
• D)Hispanic

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Definitions:

Chordae Tendineae

Tendon-like cords in the heart that connect the papillary muscles to the tricuspid valve and the mitral valve, preventing their inversion during contraction.

Trabeculae Carneae

Irregular muscular columns that line the interior walls of the ventricles of the heart.

Pectinate Muscles

Internal ridges of myocardium in the atria of the heart.

Visceral Pericardium

The inner layer of the pericardium that closely envelopes the heart.