Describe the three layers of the heart wall.

1. Endocardium
2. Myocardium
3. Epicardium


1. Endocardium—inner layer; smooth to reduce friction
2. Myocardium—middle layer; cardiac muscle; contracts to pump blood
3. Epicardium—outer layer; part of pericardial sac around the heart

Health & Biomechanics

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The process of removing wastes from the body is

A) digestion. B) urination. C) elimination. D) respiration.

Health & Biomechanics

Lymphocytes generated during an initial infection that circulate in the body for years and quickly destroy that infection if it ever appears again are called ______ cells.

A. killer T B. helper T C. suppressor T D. memory T

Health & Biomechanics

The health care provider documents the medical term for enlargement of the spleen as ________.

Fill in the blank(s) with the appropriate word(s).

Health & Biomechanics

Anteriorly, the pelvic bones are joined to form the symphysis pubis, an amphiarthrodial joint.

Answer the following statement true (T) or false (F)

Health & Biomechanics