CVS 4 or Vascular system

Question 0

Carries deoxygenated blood

Answer 0

Veins

Question 1

Carries oxygenated blood

Answer 1

Arteries

Question 2

Contains single layer of endothelial cells and the innermost part

Answer 2

Tunica intima

Question 3

Contains multi-unit smooth muscles with no gap junctions

Answer 3

Tunica media

Question 4

Contains loose fibrous connective tissue mostly elastic and collagenous

Answer 4

Tunica externa

Question 5

Contains epithelial cells and is the outermost layer

Answer 5

Serosa

Question 6

Source of calcium in smooth muscles

Answer 6

ECF and Sarcoplasmic Reticulum

Question 7

One of the chemicals released by endothelial cells that is a potent vasoconstrictor

Answer 7

Nitric oxide

Question 8

Blood vessel that has the highest velocity of blood flow and highest pressure

Answer 8

Arteries

Question 9

Transports blood AWAY from the heart

Answer 9

Arteries

Question 10

aka “large sized artery of conducting artery and has high elastic tissues and smooth muscles

Answer 10

Elastic arteries

Question 11

Distributes blood to the different parts of the body, more smooth muscle than elastic tissue

Answer 11

Muscular or medium sized artery

Question 12

Have narrow lumens and maximal vascular resistance

Answer 12

Resistance/arterioles/small sized arteries

Question 13

Has no elastic or smooth muscles and made up of endothelial cells and basement membrane

Answer 13

Capillaries

Question 14

Important because it is where exchange of gases occurs

Answer 14

Capillaries

Question 15

Least permeable type of capillaries and has tight junction

Answer 15

Continous capillary

Question 16

Capillary found in brain, skin, muscle and lungs

Answer 16

Continous capillary

Question 17

Has fenestrations or pores, found in kidney and GIT

Answer 17

Fenestrated capillary

Question 18

Most permeable capillary and found in bone marrow, liver, spleen and endocrine gland

Answer 18

Sinusoidal capillaries

Question 19

Only part of capillary that has blood flow when at rest

Answer 19

Main thoroughfare

Question 20

Part of capillary closed at rest and opens when activated during exercise

Answer 20

Precapillary sphincters

Question 21

Capacitance vessels

Answer 21

Veins

Question 22

Transports blood under low pressure and transports blood TOWARDS the heart

Answer 22

Veins

Question 23

Contains VALVES, the lower it is located, the higher the concentration of valve

Answer 23

Veins

Question 24

Major regulator of blood flow

Answer 24

Tissue needs

Question 25

The cardiac output is mainly controlled by the:

Answer 25

Sum of all the local tissue flows

Question 26

Greatest blood volume

Answer 26

Veins

Question 27

Least in total cross-sectional area

Answer 27

Arteries

Question 28

Largest in diameter

Answer 28

Great vein

Question 29

Thickest wall

Answer 29

Aorta

Question 30

Least blood volume

Answer 30

Capillaries

Question 31

Has highest pressure

Answer 31

Aorta

Question 32

Fastest blood flow velocity

Answer 32

Aorta

Question 33

Slowest blood flow velocity

Answer 33

Capillaries

Question 34

Circulation present in capillaries

Answer 34

Microcirculation

Question 35

Easily diffuses through the membrane

Answer 35

Lipid soluble

Question 36

Utilizes clefts/pores to diffuse

Answer 36

Water soluble

Question 37

Factors affecting permiability

Answer 37

Charge and size

Question 38

Force responsible for the exchange of fluid across the vessel

Answer 38

Starling forces