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MDCN Assessment Exam Blood Vessels and Circulation — practice questions

Explore 18 free Blood Vessels and Circulation questions in MDCN Assessment Exam Physiology. Each question opens with answer choices, the correct answer and a worked solution.

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Blood Vessels and Circulation MCQs with answers

Showing questions 1–18 of 18.

Which epithelium forms the endothelium that lines the tunica intima?Read the answer and worked solution →Which tunic is normally the thickest layer in the wall of a vein?Read the answer and worked solution →What diameter range is typical of a muscular artery?Read the answer and worked solution →Which vessels are the primary site of both resistance and regulation of blood pressure?Read the answer and worked solution →The supply of blood to a tissue by its capillaries is given which name?Read the answer and worked solution →Which capillary type has incomplete basement membranes wide enough to pass whole cells?Read the answer and worked solution →Approximately what share of the blood volume sits in the systemic veins at any moment?Read the answer and worked solution →The venous reserve is the blood held in venous networks within which structures?Read the answer and worked solution →A patient reads 120/80 mm Hg. What is the pulse pressure?Read the answer and worked solution →For a blood pressure of 120/80 mm Hg, what is the approximate mean arterial pressure?Read the answer and worked solution →How many Korotkoff sounds are recognized, and how many are normally recorded?Read the answer and worked solution →Which factor is not among the five variables influencing blood flow and blood pressure?Read the answer and worked solution →Of viscosity, vessel length and radius, which one can the body alter rapidly?Read the answer and worked solution →An arteriole constricts to one half of its original radius. Resistance to flow changes by what factor?Read the answer and worked solution →Regulatory mechanisms are effective enough that a bleeding patient may remain asymptomatic until roughly what fraction of blood volume is lost?Read the answer and worked solution →Where is angiotensin I converted into angiotensin II, and by which enzyme?Read the answer and worked solution →Atrial natriuretic hormone opposes angiotensin II by producing which effect?Read the answer and worked solution →Chronic and persistent readings at or above which value define hypertension?Read the answer and worked solution →

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