EKG exam

Front

____ cells are specialized cells of the electrical conduction system responsible for the spontaneous generation of electrical impulses

Back

pacemaker

Front

when the cardiac muscle cells are stimulated,

Back

the heart contracts

Front

The basic contractile unit of myofibril is a(n)

Back

sarcomere

Front

If the heart is in a state of systole, ___

Back

there is no contraction

Front

The heart has ___ chambers

Back

4

Front

The average number of heart contractions per minute for an adult is

Back

60-100

Front

blood entering the right atrium is

Back

deoxygenated

Front

an axillary temperature is typically

Back

lower than an oral temperature

Front

swelling due to fluid build up in the tissues is called

Back

edema

Front

The upper chambers of the heart are called

Back

atria