Deoxygenated blood from the body returns to the:

•  right atrium

•  right ventricle

•  left atrium

• left ventricle

Which of the following blood vessels transports oxygenated blood?

• Superior vena cava

•  Pulmonary arteries

•  Inferior vena cava

• Pulmonary veins

The electrical impulse generated by the heart originates in the:

•  bundle of His

• coronary sinus

• sinoatrial node

•  atrioventricular node

In contrast to the sympathetic nervous system, the parasympathetic nervous system:

•  prepares the body to handle stress

•  causes an increase in the heart rate

•  slows the heart and respiratory rates

• dilates the blood vessels in the muscles

Tags

NGSS.HS-LS1-3

The right coronary artery supplies blood to the:

•  left ventricle and inferior wall of the right atrium

•  right ventricle and inferior wall of the left ventricle

•  right atrium and posterior wall of the right ventricle

•  left ventricle and posterior wall of the right ventricle

The iliac arteries immediately subdivide into the:

• femoral arteries

•  peroneal arteries

• anterior tibial arteries

• posterior tibial arteries

Narrowing of the coronary arteries caused by a buildup of fatty deposits is called:

• angina pectoris

•  arteriosclerosis

• acute ischemia

• atherosclerosis

Angina pectoris occurs when:

•  a coronary artery is totally occluded by plaque

•  myocardial oxygen demand exceeds supply

• one or more coronary arteries suddenly spasm

• myocardial oxygen supply exceeds the demand

The MOST common reason that many people experiencing AMI do not seek immediate medical attention is because they:

• are elderly

•  are in denial

• cannot afford it

• do not trust EMTs

When documenting a patient’s description of his or her chest pain or discomfort, the EMT should:

• use medical terminology

•  use the patient’s own words

• underline the patient’s quotes

• document his or her own perception