lab practical 2

Question 1

What is the order of oxygenated blood from the heart to the capilarys

Answer 1

Aorta -> Artery -> arteriole -> capillaries

Question 2

What is the order of oxygenated blood from the heart to the capilarys

Answer 2

Aorta -> Artery -> arteriole -> capillaries

Question 3

What is the order of de-oxygenated blood from the capillareis back to the heart

Answer 3

Capillaries -> venules -> veins -> vena cava

Question 4

What are the two circulation systems?

Answer 4

Systemic and pulmonary

Question 5

Which circulatory route has arteries that CONTAIN O2 and veins have NO O2

Answer 5

Systemic circulation

Question 6

Which circulatory route has arteries that CONTAIN O2 and veins have NO O2

Answer 6

Systemic circulation

Question 7

Which circulatory route has veins that CONTAIN O2 and arteries have NO O2?

Answer 7

pulmonary circulation

Question 8

Which circulatory route has veins that CONTAIN O2 and arteries have NO O2?

Answer 8

pulmonary circulation

Question 9

What are the three types of vessels?

Answer 9

arteries (elastic, muscular, arterioles), capillaries, veins (venules)

Question 10

What are the layers of the vessels?

Answer 10

Tunica Eterna, Tunica Media, Tunica interna (intima)

Question 11

What are the layers of the vessels?

Answer 11

Tunica Eterna, Tunica Media, Tunica interna (intima)

Question 12

What layer of the vessels contains elastic and collagen fibers, and supports and protects?

Answer 12

Tunica Externa

Question 13

What layer of the vessels contains elastic and collagen fibers, and supports and protects?

Answer 13

Tunica Externa

Question 14

Which layer of the vessel is the thickest?

Answer 14

Tunica Media

Question 15

What type of fibers does the tunica media contain?

Answer 15

elastic and smooth muscle fibers that encircle diameter of vessel

Question 16

What is the tunica media regulated by?

Answer 16

sympathetic nervous system

Question 17

Is the tunica media thicker or thinner in veins?

Answer 17

thinner

Question 18

What layer of the vessel contains simple squamous epithelium, and elastic tissue?

Answer 18

Tunica Interna

Question 19

What would cause plaque formation in the tunica interna?

Answer 19

Damage to endothelium -> platelets stick to wall -> plaque formation

Question 20

Which type of artery is large diameter and have more elastic fibers in the tunica media than other arteries?

Answer 20

Elastic arteries

Question 21

What type of artery is aorta and pulmonary arteries?

Answer 21

Elastic arteries

Question 22

Which type of artery is smaller in diameter, has more smooth muscle and fewer elastic fibers?

Answer 22

Muscular

Question 23

Which type of artery is smaller in diameter, has more smooth muscle and fewer elastic fibers?

Answer 23

Muscular

Question 24

How does Muscular arteries control blood flow to different areas of the body?

Answer 24

vasoconstriction and vasodilation

Question 25

Which artery control blood flow into capillaries and play a very large role in controlling blood pressure?

Answer 25

Arterioles

Question 26

What structure receive blood from capillaries and drains into veins?

Answer 26

venules

Question 27

What structure receive blood from capillaries and drains into veins?

Answer 27

venules

Question 28

What two things does venules contain?

Answer 28

Contain tunica interna (endothelium) & tunica media (few smooth muscle fibers)

Question 29

What two things does venules contain?

Answer 29

Contain tunica interna (endothelium) & tunica media (few smooth muscle fibers)

Question 30

Which structure contains tunica interna, media and externa and contains fewer smooth muscle fibers and elastic fibers than arties?

Answer 30

Veins

Question 31

What does artery's contains that veins to do not?

Answer 31

elastic external or internal elastic lamina

Question 32

What is the structure in the vein that prevents back flow of blood?

Answer 32

Valves

Question 33

What is varicose veins?

Answer 33

faulty valves allow back flow and pooling of blood

Question 34

What structure allows for RBC single file?

Answer 34

Capillaries

Question 35

What is capillaries made up of?

Answer 35

single layer endothelial cells supported by a basement membrane

Question 36

In capillaries what are the fusion of plasma membranes of adjacent cells?

Answer 36

tight junctions

Question 37

what does tight junction allow?

Answer 37

only allow lipid soluble or membrane carrier-contain substances to pass

Question 38

In capillaries what are the spaces between cells?

Answer 38

intercellular clefts

Question 39

In capillaries what allows substances to pass through capillary walls (tanscytosis)?

Answer 39

vesicles

Question 40

In capillaries what are the pores in plasma membrane that is covered by thin membrane?

Answer 40

fenestration (windows)

Question 41

What does blood pressure do?

Answer 41

drives plasma out of capillaries, which then is interstitial fluid

Question 42

What does blood osmotic pressure do?

Answer 42

draws interstitial fluid back into venouse end of capillary

Question 43

what is blood pressure?

Answer 43

pressure exerted by blood against blood vessel walls

Question 44

Where is blood pressure the highest?

Answer 44

aorta and it decreases as it travels further from the heart

Question 45

What is systolic blood pressure?

Answer 45

ventricular contraction

Question 46

What is diastolic blood pressure?

Answer 46

ventricular relaxation, no blood ejected