19. The Blood Vessels

A major difference between venules and arterioles is that:

Which of the following is not a reason that veins need valves to prevent backflow, but arteries do not?

Which of the following statements regarding arteries and veins is true?

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

e. Veins have smaller lumens, more elastic fibers, and more smooth muscle than arteries.

Which of the following vessels does not drain into the hepatic portal vein?

a. Splenic vein

b. Inferior mesenteric vein

c. Gastric vein

d. Renal vein

e. Superior mesenteric vein

Match the following veins with the correct description.       

____Cephalic vein      

____Great saphenous vein      

____Dural sinus      

____Azygos vein      

____Hepatic portal vein      

____Splenic vein      

____Internal jugular vein      

____Brachiocephalic veins       

____Brachial vein      

____Inferior mesenteric vein

a. Drains the posterior abdominal and thoracic walls

b. Two veins merge to form the superior vena cava

c. Receives blood from the spleen and digestive organs

d. Superficial vein in the medial leg

e. Drains the brain and face

f. Drains part of the large intestine

g. Superficial vein in the lateral upper limb

h. Deep vein of the arm

i. Drains the spleen

j. Drain the brain capillaries and cerebrospinal fluid

Match the following terms with the correct definition.      

____Auricle      

____Aorta      

____Coronary sinus       

____Papillary muscle      

____Fossa ovalis     

____Pectinate muscle      

____Venae cavae      

____Pulmonary trunk      

____Chordae tendineae      

____Pulmonary veins 

a. Drainage point for the coronary veins

b. Extensions that attach papillary muscles to valves

c. Remnant of a hole present in the fetal interatrial septum

d. Two largest veins of the systemic circuit

e. Flaplike extension from the right or left atrium

f. Finger-like projections of ventricular muscle

g. Main artery of the pulmonary circuit

h. Veins that drain the pulmonary circuit

i. Largest artery of the systemic circuit

j. Ridges of muscle in the atria

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

c. Arteries always carry oxygenated blood away from the heart, and veins always carry deoxygenated blood toward the heart.

The lowest pressure in the systemic circuit occurs in the:

a. arteries.

b. arterioles.

c. capillaries.

d. venules.

e. veins.