Question 1

Which vessel carries oxygenated blood from the heart to the systemic circulation, and why is its pressure the highest in the body?

Accepted Answer

The aorta, because it receives blood directly from the left ventricle during systole.

Question 2

A patient has a blockage in the right common carotid artery. Which area is most likely to experience reduced blood flow as a result?

Accepted Answer

The right side of the brain and head

Question 3

Which of the following best describes the function of valves in veins?

Accepted Answer

They prevent the backflow of blood, especially in the limbs.

Question 4

If the mean arterial pressure (MAP) is calculated using the formula $$MAP = \frac{1}{3} (Systolic\ Pressure - Diastolic\ Pressure) + Diastolic\ Pressure$$, what is the MAP for a patient with a blood pressure of 120/80 mmHg?

Accepted Answer

$$MAP = 93.3\ mmHg$$

Question 5

Which artery is a direct branch of the aortic arch and supplies blood to the right upper limb?

Accepted Answer

Brachiocephalic trunk

Question 6

A deep vein thrombosis (DVT) in the right lower limb could most directly affect which major vein?

Accepted Answer

Inferior vena cava

Question 7

Which of the following arteries supplies blood to the brain and is a branch of the subclavian artery?

Accepted Answer

Vertebral artery

Question 8

A patient suffers a traumatic injury that severs the femoral artery. Which of the following is the most immediate physiological consequence?

Accepted Answer

Reduced oxygen delivery to the lower limb tissues

Question 9

Which of the following best explains why veins in the lower limbs are more likely to develop varicosities?

Accepted Answer

They must work against gravity to return blood to the heart.

Question 10

Which vessel is responsible for draining deoxygenated blood from the brain?

Accepted Answer

Internal jugular vein

Question 11

A patient with a liver disorder develops portal hypertension. Which vein is most directly affected by this condition?

Accepted Answer

Hepatic portal vein

Question 12

Which of the following arteries is NOT a branch of the abdominal aorta?

Accepted Answer

Subclavian artery

Question 13

A patient presents with a stroke affecting the left cerebral hemisphere. Which artery is most likely involved?

Accepted Answer

Left middle cerebral artery

Question 14

Which of the following best describes the path of blood flow from the left ventricle to the right hand?

Accepted Answer

Left ventricle → aorta → brachiocephalic trunk → right subclavian artery → right axillary artery → right brachial artery

Question 15

Which of the following is a correct statement about the pressure gradient in the systemic circulation?

Accepted Answer

Pressure is highest in the aorta and lowest in the venae cavae.

Question 16

A patient has a blood clot in the left external iliac artery. Which region is most likely to be affected?

Accepted Answer

Left lower limb

Question 17

Which of the following arteries supplies blood to the abdominal organs such as the stomach, liver, and spleen?

Accepted Answer

Celiac trunk

Question 18

If a patient has a blockage in the superior vena cava, which of the following symptoms is most likely to occur?

Accepted Answer

Swelling of the face and upper limbs

Question 19

Which of the following best explains why the hepatic portal vein is unique among veins?

Accepted Answer

It carries blood from the digestive organs to the liver for processing before returning to the heart.

Question 20

A patient is found to have a congenital absence of valves in the veins of the lower limbs. Which of the following complications is this patient most at risk for?

Accepted Answer

Chronic venous insufficiency and varicose veins

The Cardiovascular System: Blood Vessels – Major Arteries of Systemic Circulation

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