Answers2026-2027 EDGE Human Anatomy and Physiology BCardiovascular System Career Specialties

Cardiovascular System Career Specialties — Unit test Answers

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Which best describes how blood pressure is measured and why it is important?

A
Blood pressure measures pressure on the arteries and can be an indicator of an unhealthy cardiovascular system.
B
Blood pressure measures pressure on the veins and can be an indicator of an unhealthy urinary system.
C
Blood pressure measures pressure on the capillaries and can be an indicator of an unhealthy nervous system.
D
Blood pressure measures pressure on the heart and can be an indicator of an unhealthy endocrine system.
22
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Carine went to the doctor for a physical. Her blood pressure was 80/50. What describes Carine’s condition, and what is the most likely explanation for how she got it?

A
She has hypotension because she is pregnant.
B
She has hypotension because she is overweight.
C
She has hypertension because she is pregnant.
D
She has hypertension because she is overweight.
23

Cindy has a blood disorder that she inherited from her parents. Her body is unable to produce enough hemoglobin. Which disorder does Cindy most likely have?

A
lymphoma
B
sepsis
C
hemophilia
D
thalassemia
24

A patient suffering from severe chest pain is admitted to the ER. After a series of tests, it is found that blood is flowing back into the left atrium as it is pumped into the left ventricle. Which valve is responsible for preventing this from happening?

A
the aortic valve
B
the mitral valve
C
the pulmonary valve
D
the tricuspid valve
25

The most common type of blood cancer is

A
sickle cell anemia.
B
lymphoma.
C
thrombocytosis.
D
leukemia.
26

Mr. Lopez has been advised to watch his cholesterol intake to prevent a myocardial infarction. Which describes the relationship between cholesterol and myocardial infarction?

A
A high cholesterol diet will increase cholesterol. Cholesterol reduces the occurence of thromboses. Thromboses obstruct the flow in coronary arteries.
B
A low cholesterol diet will reduce cholesterol. Cholesterol is strongly attracted to plaque. Plaque can build up and block the coronary arteries.
C
A high cholesterol diet will increase cholesterol. Cholesterol is a key ingredient in reducing the formation of plaque. Plaque can build up and block the coronary arteries.
D
A low cholesterol diet will reduce cholesterol. Cholesterol is one of the main components in thromboses. Thromboses obstruct the flow or blood in coronary arteries.
27

The picture below accurately depicts a healthy heart. The left ventricle has a thicker myocardium than the right. What best explains why the muscle in the left ventricle is larger than the one on the right?Image by Patrick J. Lynch

Question illustration
A
The left ventricle pumps blood to the systemic circulation process, while the right ventricle pumps blood to pulmonary circulation.
B
The right ventricle pumps blood to the systemic circulation process, while the left ventricle pumps blood to pulmonary circulation.
C
The right ventricle directly pumps blood into the left ventricle, which then pumps the blood to the entire body.
D
The left ventricle is pumping oxygen-poor blood, so the muscle is not getting enough oxygen.
28

Mario complained to his doctor that he had regular headaches, dizziness, and numbness in his hands. After a complete examination, the doctor prescribed anticoagulants. Which disorder was Mario most likely diagnosed with?

A
thrombocytosis
B
sepsis
C
anemia
D
hemophilia
29

Keon smokes, is overweight, and is very stressed at work. When the doctor measure’s Keon’s blood pressure, which reading most likely appears, and how can Keon treat it?

A
His blood pressure is 90/60, and he should drink more water.
B
His blood pressure is 120/80, and he should take medication.
C
His blood pressure is 145/90, and he should increase his sodium intake.
D
His blood pressure is 150/100, and he should exercise and diet.
30

Jarin drank a lot of water before going to the doctor. What best describes what would happen to his blood pressure?

A
His systolic pressure would increase.
B
His diastolic pressure would decrease.
C
His systolic pressure would decrease while his diastolic would increase.
D
His systolic pressure would increase while his diastolic would decrease.
31

Anemia is a blood disorder that can occur when hemoglobin is unable to carry oxygen to the tissues. One cause of anemia is a deficiency in

A
calcium.
B
iron.
C
potassium.
D
carbon.
32

How does having a dog improve cardiovascular health?

A
It improves heart pace.
B
It reduces exercise.
C
It improves diet.
D
It reduces stress.
33

Ms. Sullivanis suffers from a headache, irregular heartbeat, chest pain, and nausea. She is taken to the ER and told she has a blood pressure reading of 136/92. What does this indicate?

A
hypertension
B
coronary disease
C
cardiac dysrhythmias
D
pulmonary embolism
34

Usha is giving a presentation on the cardiovascular system. One of her slides shows a diagram of the blood moving from the heart to the arms and legs. Which type of circulation is the slide illustrating?

A
systemic circulation
B
pulmonary circulation
C
systolic circulation
D
diastolic circulation

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