Deck 34: Overview of the Cv System and Blood

Question 1

The interstitial fluid volume can be estimated as

A) The total body water minus the intracellular fluid volume
B) The extrace llular fluid volume minus the plasma volume
C) The total body water minus the plasma volume
D) The total body water minus the extracellular fluid volume
E) None of the above

Answer 1

B

Question 2

The pulmonary circulation

A) Lies b etw een the righ t hea rt and left hea rt
B) Provides blood to the major organs of the body
C) Is in parallel with the systemic circulation
D) Has flow that is independent of the systemic circulation
E) Gains CO₂ and loses O 2

Answer 2

A

Question 3

The large vessels that carry blood to the tissues are the

A) Arteries
B) Arterioles
C) Capillaries
D) Venules
E) Veins

Answer 3

A

Question 4

The circulation of the blood is caused mainly by

A) The pu m ping action of the hea rt
B) One-way valves in the arteries
C) The pum ping action of skeletal muscles
D) Gr avity
E) The elastic properties of arteries

Question 5

The last and largest vessels that return blood to the heart are the

A) femoral veins
B) brachiocephalic veins
C) superior and inferior vena cava
D) abd om inal ao rta
E) portal circulation

Question 6

Which of the following CANNOT prevent blood from clotting?

A) H ep ar in
B) Citrate (it complexes Ca₂+)
C) EDTA (it complexes Ca₂+)
D) An tithrom bin III
E) Tis su e th rom bo plas tin

Question 7

Exchange of nutrients and wastes occurs predominately across the

A) Arteries
B) Arterioles
C) Capillaries
D) Venules
E) Veins

Question 8

Which is NOT a principal category of things transported by the cardiovascular system?

A) Nu trients
B) W astes
C) Hormones
D) Heat energy
E) Ba cter ia

Question 9

After blood clots, the fluid that remains (called serum)

A) Is called plasma
B) Ha s [K +] of about 140 mM
C) Has [Na+] of about 4 mM
D) Can occur only if heparin or EDTA is added to induce the clot
E) Lacks fibrinogen

Question 10

Clotting of the blood imm ediately follows

A) Activation of plasmin from plasminogen by TPA
B) Co nv ersio n o f pro thro m bin to th rom bin
C) Inh ibitio n o f pr oth ro m bin by a
D) Release of thromoxane A 2 by platele ts
E) Vasoconstriction

Question 11

The ov erall fun ction o f the c ardio vas cula r syste m is to

A) Transport materials by diffusion
B) Equilibrate body temperature with the environment
C) Distribute water to all parts of the body
D) Transport materials by convection
E) Defend the circulating volume

Question 12

Unclotted blood was obtained and placed in a long right cylindrical tube which was then centrifuged. The height of the blood was 3.8 cm. After centrifugation, the packed cells had a height of 1.7 cm. The he m ato cr it is

A) 0.309
B) 0.447
C) 0.553
D) 0.381
E) 0.809

Question 13

The cardiovascular system Increases delivery of materials by

A) Diffusion
B) Conduction
C) Convection
D) Com pliance
E) Radiation

Question 14

Platelets cause vasoconstriction by release of

A) Histamine
B) Se roto nin
C) Throm bin
D) ADP
E) Lipoproteins

Question 15

The en zym e d ire ctly r es po ns ible for for m atio n o f th e c lot is

A) Pr oth ro m bin
B) Fa ctor X III
C) Fa ctor X IIIa
D) Fa ctor V IIa
E) Th rom bin

Question 16

The extracellular fluid volume contained within the vasculature is the

A) Blood volume
B) 1 - Hct
C) Hct
D) Plasma volume
E) ECF volume