Blood Vessels

Question 1

epinephrine and norepinephrine will

Answer 1

increase heart rate, stroke volume, cardiac output and vasoconstriction.

Question 2

hydrostatic pressure

Answer 2

The force exerted by a fluid pressing against a wall.

Question 3

capillary hydrosttic pressure

Answer 3

tends to force fluids through capillary walls (filtration), leaving behind cells and proteins

Question 4

blood hydrostatic pressure

Answer 4

fluid shifts and forces pushing the liquid portion of the blood out at the arterial end

Question 5

Blood colloidal pressure or osmotic pressure

Answer 5

liquid comes back in at the venous end

Question 6

lymph system takes away how much

Answer 6

1/10

Question 7

edema is caused by

Answer 7

blockage in the lymph system, lymphs removed, low blood colloidal, increase in vascular permeability

Question 8

where is resistance to blood flow the highest

Answer 8

arterials

Question 9

Difference between arteries and veins

Answer 9

veins have less of everything. Less elestic fibers. they stretch but don’t bounce back right a way. Arteries have a higher blood pressure, veins have a lower blood pressure. Veins have valves, arteries do not.

Question 10

different types of arteries

Answer 10

ACE - Aorta, conducting or elastic, MD - muscular or distrubuting.

Question 11

different types of capillaries

Answer 11

continuous have a lower permeability, fenestrated have a higher permeability

Question 12

The order of blood vessels a RBC would take leaving the heart

Answer 12

elastic, muscular, arteriol, capillary, small vein, venual, small medium, large veins

Question 13

largest artery

Answer 13

aorty

Question 14

largest vein

Answer 14

superior and inferior vena cava

Question 15

smallest vein

Answer 15

venual

Question 16

smallest artery

Answer 16

arteriol

Question 17

frank starlings law of the heart

Answer 17

what goes in, goes out. if you increase Venous return and there’s an increase in enddiastolic volume, the amount of blood, cardiac output goes up

Question 18

which has more compliance, arteries or veins?

Answer 18

veins are 20 times more compliant than veins. Compliance is how readily they stretch and how much change in pressure they get from that stretch

Question 19

3 major types of blood vessels

Answer 19

arteries, capillaries and veins.

Question 20

as the heart contracts it forces blood into the large arteries, leaving the ventricles. then the blood moves to

Answer 20

smaller arteries, arterioles, which feed the capillary beds, then the venules, and then back to large veins and back to the heart.

Question 21

blood vessels have 3 distrinct layer or

Answer 21

tunics

Question 22

inner most tunic of blood vessel

Answer 22

tunica intima - simple squamous epithelial cells

Question 23

middle tunic of blood vessel

Answer 23

tunica media which is primarily circularly arranged smooth muscle cells. This layer is innervated by the SNS which upon stimulation causes vasoconstriction of blood vessels

Question 24

outer most layer of blood vessel wall

Answer 24

tuinica externa is composed mostly of collagen fibers

Question 25

Elastic or conducting arteries

Answer 25

ACE - aorta, conducting, elastic

Question 26

muscular arteries

Answer 26

MD, muscular arteries are distributing arteries.

Question 27

arteriol

Answer 27

These are the smallest blood vessels where all

three tunics can be seen. They also have the highest resistance to blood flow in the CV system.

Question 28

lumen

Answer 28

opening of veins and arteries

Question 29

capillaries are classified based on their

Answer 29

permeability and size

Question 30

Continuous Capillaries

Answer 30

are the least permeable and most common. Abundant in skin, muscles, lungs and CNS

Question 31

fenestrated capillaries

Answer 31

have large fenstrations (pores) that increase permeability. occur in areas of active filtration or absorption. kidneys, small intestine, endocrine hormone secretion.