Problem Set; Chapter 33 #3

What is considered a normal blood pressure? A. 80 / 120 B. 120 / 80 C. 65 / 100 D. 100 / 60 E. 140 / 120

A

Which chamber of the heart will initially receive the oxygen poor blood from the body? A. Right atrium B. None of these choices. C. Left atrium D. Right ventricle E. Left ventricle

A

Sympathetic stimulation will cause which of the following reactions in the extremities? A. Decrease in the diameter of the veins B. Vasodilation C. Decrease in the diameter of the arterioles D. Vasoconstriction E. Increase in the diameter of the veins

B

What structure will help prevent the backflow of blood within the veins? A. Smooth muscle B. Valves C. Endothelium D. Basement membrane E. Skeletal muscle

B

Which blood vessel will deliver blood from the lower regions to the body? A. Pulmonary artery B. Inferior vena cava C. Superior vena cava D. Ventricle E. Pulmonary vein

B

________ is a condition that has a slower than average resting heart rate. A. Atherosclerosis B. Bradycardia C. Tachycardia D. Ventricular fibrillation E. Atrial fibrillation

B

A bulging ________ during a(n) ________ contraction will produce a pulse. A. vein, atrial B. vein, ventricular C. artery, ventricular D. artery, atrial E. artery, capillary

C

What is required to restart a heart that has entered cardiac arrest? A. A shot of epinephrine. B. CPR. C. An electrical shock to the heart. D. Elevation of the individual's legs. E. None of these choices will restart a heart that has entered cardiac arrest.

C

Which blood vessel will carry blood away from the kidneys? A. Brachial artery B. Inferior vena cava C. Renal vein D. Hepatic vein E. Renal artery

C

Which category of blood vessels will have the largest diameter? A. Venule B. Arteriole C. Vein D. Artery E. Capillary

C

Which of the following components makes up the greatest percentage of blood volume? A. Platelets B. White blood cells C. Water D. Plasma proteins E. Red blood cells

C

During rest which structure will act as a reservoir and hold the majority of the body's blood supply? A. Liver B. Spleen C. Arteries D. Veins E. Heart

D

Which heart condition is the most dangerous? A. Atherosclerosis B. Bradycardia C. Tachycardia D. Ventricular fibrillation E. Atrial fibrillation

D

Which substance is not capable of diffusing across the endothelial cells of a capillary? A. None are capable of diffusing across the endothelial cells. B. Carbon dioxide C. Small lipid soluble molecules D. All are capable of diffusing across the endothelial cells. E. Oxygen

D

During cardiac arrest what event will occur? A. Pacemaker malfunctions. B. Blood flow through the body stops. C. Electrical signaling is disrupted. D. Heart stops beating. E. All of these choices.

E

Plasma will make up ________% to ________% of the blood volume. A. 20, 30 B. 40, 50 C. 80, 90 D. 60, 70 E. 50, 60

E

What is the correct pairing of blood vessels and the speed of blood flow? A. Arterioles - fastest B. Capillaries - fastest C. Arteries - medium D. Arteries - slowest E. Capillaries - slowest

E

Which factor plays a role in determining blood pressure? A. Amount of blood the ventricle pumps out B. Cardiac output C. Arteriole dilation D. Total blood volume E. All of these choices.

E