Question 1

Which vessel is responsible for carrying blood from the gastrointestinal tract to the liver for filtration before it enters systemic circulation?

Accepted Answer

Hepatic portal vein

Question 2

The Circle of Willis is important for which of the following reasons?

Accepted Answer

It equalizes blood pressure and flow between the two hemispheres of the brain.

Question 3

Which of the following arteries is NOT a direct branch of the aortic arch?

Accepted Answer

Right subclavian artery

Question 4

A patient presents with a blockage in the right internal carotid artery. Which anatomical feature allows for continued perfusion of the right cerebral hemisphere?

Accepted Answer

Circle of Willis

Question 5

Which of the following correctly describes the difference between arteries and veins as seen in histological cross-section?

Accepted Answer

Arteries have a smaller lumen and thicker wall compared to veins.

Question 6

Which equation best describes the relationship between blood flow ($$Q$$), pressure difference ($$\Delta P$$), and resistance ($$R) in a $$vessel?

Accepted Answer

$$Q = \frac{\Delta P}{R}$$

Question 7

Which vessel supplies the majority of blood to the small intestine?

Accepted Answer

Superior mesenteric artery

Question 8

During fetal circulation, which structure allows blood to bypass the lungs by connecting the pulmonary trunk to the aorta?

Accepted Answer

Ductus arteriosus

Question 9

If the dorsalis pedis artery is obstructed, which clinical sign might be observed in a patient?

Accepted Answer

Decreased pulse on the dorsal aspect of the foot

Question 10

Which of the following is true regarding the naming of carotid arteries?

Accepted Answer

The common carotid artery branches into internal and external carotid arteries.

Question 11

Which of the following is a function of valves in veins?

Accepted Answer

To prevent backflow of blood

Question 12

A skier complains of numbness in the foot after tightening their boot. Which artery is most likely being compressed?

Accepted Answer

Dorsalis pedis artery

Question 13

Which of the following is NOT a branch of the celiac trunk?

Accepted Answer

Superior mesenteric artery

Question 14

Which equation describes the relationship between vessel radius ($$r) $$and resistance ($$R) $$according to Poiseuille's law?

Accepted Answer

$$R \propto \frac{1}{r^4$}$$

Question 15

Which vessel carries filtered blood from the liver to the inferior vena cava?

Accepted Answer

Hepatic vein

Question 16

Which of the following arteries is a continuation of the anterior tibial artery as it crosses the ankle?

Accepted Answer

Dorsalis pedis artery

Question 17

Which of the following is true regarding the brachiocephalic trunk?

Accepted Answer

The brachiocephalic trunk is only present on the right side.

Question 18

Which vessel is responsible for collateral circulation in the brain, allowing compensation for occlusion of one artery?

Accepted Answer

Circle of Willis

Question 19

Which of the following arteries supplies blood to the lateral aspect of the forearm?

Accepted Answer

Radial artery

Question 20

Which of the following is a major function of the tunica media in arteries?

Accepted Answer

Regulates vessel diameter through smooth muscle contraction

Blood Vessels and the Circulatory System: Structured Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드