1) Blood pressure is best defined as: a) Speed of blood flow b) Force against vessel walls c) Volume of blood d) Heartbeats per minute 2) Which formula correctly represents cardiac output (CO)? a) CO = BP × TPR b) CO = HR − SV c) CO = SV ÷ HR d) CO = HR × SV 3) Heart rate (HR) refers to: a) Blood pumped per beat b) Ventricular contraction force c) Heartbeats per minute d) Resistance to blood flow 4) Stroke volume (SV) is: a) Total blood volume b) Blood ejected per beat c) Blood after diastole d) Arterial blood pressure 5) Which equation is used to calculate stroke volume? a) SV = CO ÷ HR b) SV = HR × BP c) SV = EDV − ESV d) SV = BP − TPR 6) Total peripheral resistance (TPR) mainly depends on: a) Blood volume b) Heart rate c) Blood viscosity d) Diameter of arterioles 7) If arterioles constrict, what happens to TPR and blood pressure? a) TPR ↓, BP ↓ b) TPR ↑, BP ↑ c) TPR ↓, BP ↑ d) TPR ↑, BP ↓ 8) Which factor directly increases heart rate? a) Parasympathetic stimulation b) Increased vagal tone c) Sympathetic stimulation d) Decreased calcium entry 9) Blood pressure is determined primarily by: a) Heart rate only b) Stroke volume only c) Cardiac output and TPR d) Blood volume only 10) If heart rate increases but stroke volume stays the same, cardiac output will: a) Decrease b) Stay the same c) Increase d) Become zero 11) Which situation would most likely cause low blood pressure? a) Vasoconstriction b) Increased TPR c) Increased blood volume d) Vasodilation 12) Which variable has the greatest immediate effect on blood pressure regulation? a) Red blood cell count b) Arteriolar diameter c) Capillary exchange d) Venous valves 13) Which combination will increase cardiac output the most? a) ↓ HR and ↓ SV b) ↑ HR and ↑ SV c) ↓ HR and ↑ SV d) Normal HR and ↓ SV

Cardiovascular System Quiz

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?