Exam 3: Basic Electrophysiology

An ion with a negative charge is called a(n):

The specialized pacemaker cells contain contractile filaments.

Which cardiac cell characteristic function is mechanical?

Cells responsible for generating the physical contraction of the heart muscle are the:

During the resting period, what type of line is recorded on the EKG strip?

The ________ cells have the ability to create an electrical impulse without being stimulated by a nerve.

An ion with a positive charge is called a(n):

The term that is also referred to as irritability is:

The term threshold refers to the point at which a ________ will produce a cell response.

An increase in potassium levels is known as:

All of the following cations affect cardiac function EXCEPT:

During the absolute refractory period the cardiac cell:

A decrease in calcium blood levels is termed:

The cation that is extracellular is:

Automaticity is the ability of cardiac pacemaker cells to:

The ability of the cell membrane to change to allow the movement of ions is called:

During the polarized or resting state, the inside of the cell is electrically: