Formative Quizzes Unit 2-4

Question 1

which of the following is consistent with increased lymphatic pressure?
severe dehydration
decreased capillary permeability
increased capillary oncotic pressure
increased interstitial oncotic pressure
decreased capillary hydrostatic pressure

Answer 1

increased interstitial oncotic pressure

Question 2

which of the following is most likely to cause edema?
a increase in tissue pressure
decrease capillary hydrostatic pressure
increased vascular tone
increase in plasma oncotic pressure
venous congestion

Answer 2

venous congestion

Question 3

which of the following has the greatest (total) cross-sectional area in the body?
capillaries
heart
veins
arterioles
aorta

Answer 3

capillaries

Question 4

which vascular tunic contains the simple squamous layer?

Answer 4

intimal

Question 5

Oxygen is delivered to the myocardium by

Answer 5

the blood pouring through the coronary arterioles and into capillary beds

Question 6

which statement about sinusoidal capillaries is false?
they are not found in skeletal muscle
they often have phagocytic cells inserted between the endothethial cells of their lining
they have abundant fenestration
they have unusually wide lumens compared to their capillary type
they are the least permeable capillary type

Answer 6

they are the least permeable capillary type

Question 7

cardiogenic pulmonary and systemic edema occurs when increased venous or capillary hydrostatic pressures cause ___

Answer 7

increased transduction of fluid across the capillaries

Question 8

which of the following is LEAST likely to produce localized edema?
increased intravascular hydrostatic pressure
increased venous pressure
increased plasma oncotic pressure
hypoproteinemia
lymphatic obstruction

Answer 8

increased plasma oncotic pressure

Question 9

a decrease in which variable in starling’s equation should allow for the greatest colloidal efflux from the vascular compartment

Answer 9

reflection coefficient

Question 10

edema occurred secondary to a disease process that caused the production of antibodies against capillary basement membrane. Which of the following factors was most likely altered significantly enough to precipitate edema?
interstitial oncotic pressure
interstitial hydrostatic pressure
capillary reflection coefficient
osmosis
plasma oncotic pressure

Answer 10

capillary reflection coefficient

Question 11

you place 2 cells in a homogenous solution and notice that cell A shrinks while cell B lyses. What explains this?

Answer 11

initial osmolarity of cell A was different of cell B

Question 11

the osmotic pressure of ECF is higher than that of ICF. the difference in osmotic pressure is largely attributable to the ____

Answer 11

plasma protein concentration

Question 12

which single alteration in starling’s equation would be most likely to cause an increase in hematocrit

Answer 12

increased capillary hydrostatic pressure