An Electrocardiogram Is Used to

question 42

Multiple Choice

An electrocardiogram is used to

• A) measure the amount of blood leaving the heart with each contraction.
• B) measure the electrical activity of the heart.
• C) listen to heart sounds.
• D) correct a heart murmur.
• E) initiate angina pectoris.

---

Definitions:

Antigenic Determinant

Specific part of an antigen that stimulates an immune system response by binding to receptors on the surface of lymphocytes; also called epitope.

Cell-mediated Immunity

A type of immunity where T cells directly attack infected or cancerous cells, as opposed to producing antibodies.

Polypeptide Chains

are long chains of amino acids linked by peptide bonds, forming the primary structure of proteins.

T and B Cells

Types of lymphocytes involved in the immune response; T cells assist in immune response regulation, while B cells produce antibodies.