TBL 8

Question 1

laminar vs turbulant flow

Answer 1

Question 2

reynolds number and its relationships

• Increased Re number > 3000→

– Increased cardiac out put, Increased diameter of blood vessel→

– Anemia→ Decreases blood viscosity→

– Thrombosis→

Answer 2

Question 3

arteries

arterioles

veins

capillaries

Answer 3

Question 4

velocity of blood equation

and its relationship

Answer 4

v= Q(flow rate)/Area

Question 5

velocity of arteries vs veins, vs capillaries

Answer 5

Question 6

Direction of blood flow-

resitance of blood vessels and its relationshop to blood flow

Answer 6

Question 7

Poiseuille equation

what relationship does it tell you

Answer 7

relatioship between blood flow and resistance to blood flow

inc radius, inc blood flow. Inc radius, decrease resitance to blood flow

Q= 1/r^4

Question 8

Ohm’s law of fluid flow

relationships

Answer 8

Question 9

Laplace equation-

relatioships

Answer 9

Question 10

vessel wall (T) and radius of blood vessel relatioships based on laplace equation

large arteries must have _________ walls than
small arteries in order to withstand the level
of tension

Answer 10

large arteries must have thicker walls than
small arteries in order to withstand the level
of tension

Question 11

vascular compliance relatioship

Answer 11

Question 12

compliance of artieries and veins

Answer 12

Question 13

Changes in venous compliance can result in redistribution of blood

With increasing age (elderly people)– arteries become stiffer and less distensible (decreased arterial vascular compliance) —–>

Answer 13

Question 14

pulmonary circulation vs systemic
circulation pressure difference

Answer 14

Question 15

Mean pressures (mm Hg) in:
aorta and large arteries_____

peripheral systemic arterioles _____

peripheral systemic capillaries (frictional resistance to blood flow, and filtration of fluid out of capillaries): ____

– systemic venules: _____

, peripheral systemic veins and vena cava ___

right atrium: _____

Answer 15

Question 16

Systolic blood pressure
vs Diastolic blood pressure

Pulse pressure– reflects _____

Answer 16

Question 17

how does Aging, and advanced atherosclerosis affect MAP

normal MAP is ______

Answer 17

Question 18

normal Pulmonary arterial wedge pressure (PAWP)______ it estimates _____

what causes an increase in Pulmonary arterial wedge pressure (PAWP)?

Answer 18

Question 19

Question 20

Stroke volume and cardiac output in a healthy person

Answer 20

Question 21

↑ generalized vasoconstriction leads to–

Severe coronary artery arteriosclerosis (narrowing)→

Answer 21