Week 3

What term is used to describe muscle artifacts caused by shivering from nervousness or cold, or in patients with neurological conditions like Parkinson's disease?

Somatic tremor

The heart pumps the equivalent of 4,000 gallons of blood each day.

True

How many electrodes are required to perform a 12-lead EKG?

10

How many chambers does the heart have?

3

Which structures are considered the major components of the cardiovascular system?

The heart, blood vessels, and blood

The T wave represents atrial depolarization.

True it’s (ventricular)

1. What is the body's natural pacemaker:

SA Node (sinoatrial)

At what rate, in mm per second, does the paper move through the EKG machine?

25

What comes after the "P wave" in an electrocardiogram?

QRS complex

What does arteriosclerosis refer to?

Hardening of the arteries

What are the six standard chest leads called:

Precordial leads

The walls of the heart are made up of three layers. Please choose the correct answer that includes those layers.

Epicardium, myocardial, and endocardium

There are four major blood types.

True

Which of the following are examples of cardiac diagnostic tests? Select all that apply.

Holter monitor, stress test, Echocardiography,

Electrocardiogram

Which of the following are structures found in the heart? Select all that apply.

SA Node, Bundle of his, Purkinje Fibers

Which of the following are chambers of the heart? Select all that apply.

Left atrium, Right atrium, Left ventricle, Right ventricle

Which of the following are arteries associated with the heart? Select all that apply.

Right pulmonary artery

Left pulmonary artery

Left coronary artery

Right coronary artery

Which of the following are valves of the heart? Select all that apply.

Tricuspid

Pulmonary

Mitral

Aortic

Fill in the blank

____Congenital __ heart defects are structural abnormalities caused by the

failure of the heart to develop normally before birth. The most common type of heart defect is ___ventricular Septal defect (VSD)____ ventricles this is characterized by a hole between the two

A Holter monitor can be worn for 24 hours.

True

On average, the heart is about the size of a fist.

True

• Defibrillator

An electrical device used to discharge a strong electrical current into the heart through electrode paddles held against the bare chest

Ather/o

Yellow, fatty plaque

Cardi/o

Heart

Thromb/o

Clot