Cardiovascular System - Module 12

Question 1

System responsible for transport and exchange of nutrients, oxygen, body fluids, waste material, heat, and blood cells around the body; Closed system of plumbing (Blood Vessels) and is propelled by heart

Answer 1

Cardiovascular System

Question 2

Vessels of the Cardiovascular System

Answer 2

Veins, Venules, Arteries, Arterioles, Capillaries

Question 3

Three layers of Arteries and Veins

Answer 3

Tunica intima, Tunica media, Tunica externa

Question 4

This is the innermost layer lining a blood vessel next to lumen. Composed of Endothelium and subendothelium

Answer 4

Tunica Intima

Question 5

This surrounds tunica intima

Answer 5

Basal Lamina and Loose Connective Tissue

Question 6

True or False, Arteries have an internal elastic lamina that separates the T. intima from T. media

Answer 6

True

Question 7

This is the middle layer of a Vessel wall

Answer 7

Tunica Media

Question 8

This layer consists of concentrically arranged layers of smooth muscle

Answer 8

Tunica Media

Question 9

True or False, arteries have thinner tunica media than veins due to absence of smooth muscle

Answer 9

False, Arteries have thicker Tunica Media due to more smooth muscle

Question 10

This is the outermost layer of Vessel Wall

Answer 10

Tunica Externa (Adventitia)

Question 11

This layer is composed of collagen and elastic fibers blending into the connective tissue surrounding the blood vessel

Answer 11

Tunica Externa (Adventitia)

Question 12

Thickest tunic layer in veins

Answer 12

Tunica Externa (Adventitia)

Question 13

Layers of Elastic Artery and Arterioles

Answer 13

Tunica intima, Tunica media, Tunica externa

Question 14

Layers of Muscular Artery

Answer 14

1. Tunica intima
2. Internal Elastic Lamina
3. Tunica media
4. External Elastic Lamina
5. Tunica externa

Question 15

Layers of Large Vein and Venules

Answer 15

Tunica intima, Tunica media, Tunica externa

Question 16

Layers of Medium-sized vein

Answer 16

1. Tunica intima
2. Valve
3. Tunica media
4. Tunica externa

Question 17

Small blood vessels of large arteries and veins that nourishes the adventitia and outer media

Answer 17

Vasa Vasorum

Question 18

True or False, Veins have more Vasa Vasorum than Arteries

Answer 18

True

Question 19

Why do Veins have more Vasa Vasorum than Arteries

Answer 19

Because veins have lower content of oxygen and nutrients in blood in the lumen

Question 20

Smallest blood vessel just around 7-9 micrometers in diameter.

Answer 20

Capillaries

Question 21

This blood vessel is composed of single layer of endothelial cells rolled up to a tube

Answer 21

Capillaries

Question 22

Where do endothelial cells of capillaries rest on

Answer 22

Basal Lamina

Question 23

What type of junction connects endothelial cells

Answer 23

Zonula Occludens

Question 24

Small cells adjacent to capillaries and venules, transform into other cells during repairing injury

Answer 24

Pericytes

Question 25

What are the Three types of Capillaries

Answer 25

1. Continuous Capillaries 2. Fenestrated Capillaries 3. Sinusoidal Capillaries/Sinusoids

Question 26

This is the most common type of capillary found in muscle, connective tissue, glands, and nerve tissues

Answer 26

Continuous (Tight) Capillaries

Question 27

True or False, Continuous Capillaries are fenestrated

Answer 27

False, Continuous capillaries are non fenestrated

Question 28

These type of capillaries are present in organs constantly needing exchange of substances between tissues

Answer 28

Fenestrated Capillaries

Question 29

True or False, Continuous Basal Lamina is present in Fenestrated Capillaries

Answer 29

True

Question 30

Capillaries that have large diameter and twisted course; Located in liver, bone marrow, spleen, and some endocrine organs

Answer 30

Sinusoidal Capillaries

Question 31

Capillaries located at organs forming a microvasculature network with a huge surface area

Answer 31

Capillary Bed

Question 32

Factors that determine what stuff moves across capillary walls

Answer 32

1. Size/Charge of Molecule 2. Structure of Capillary

Question 33

Which is thicker, Arteries or Veins

Answer 33

Arteries

Question 34

True or False, Arteries/arterioles have larger wall to lumen ratio

Answer 34

True

Question 35

True or False, Veins/Venules have a large wall to lumen ratio

Answer 35

False, Smaller wall to lumen ratio

Question 36

What blood vessels have thin tunica externa with 1-3 layers of smooth muscle in tunica media

Answer 36

Arterioles

Question 37

What blood vessels have very thin walls but its externa is relatively the thickest

Answer 37

Venules

Question 38

Blood vessels that conducts blood to different regions and organs of the body

Answer 38

Arteries

Question 39

True or False, Muscular Arteries are small to medium sized arteries

Answer 39

False, Medium to Large sized arteries

Question 40

Largest arteries that minimizes changes in blood pressure

Answer 40

Elastic Arteries

Question 41

What artery has a prominent internal elastic lamina and has thick tunica media

Answer 41

Muscular Arteries

Question 42

How many layers of smooth muscle is in Tunica Media of Muscular Arteries

Answer 42

40 layers of smooth muscle

Question 43

Blood vessels that returns blood back to the heart

Answer 43

Veins

Question 44

Considered Capacitance vessels since they hold more than 70% of total blood volume

Answer 44

Veins

Question 45

What layer compose the valves of veins

Answer 45

Tunica intima (projects into vein lumen)

Question 46

True or False, Valves in veins are numerous in limbs

Answer 46

True

Question 47

This is the inner layer of the heart; Consists of endothelium and basal lamina

Answer 47

Endocardium

Question 48

True or False, valves are not considered part of the Endocardium

Answer 48

False, they are considered part of the endocardium

Question 49

This layer of endocardium is a layer of loose connective tissue between endocardium and myocardium containing nerves, blood vessels, and branches of conducting system of the heart

Answer 49

Subendocardium Layer

Question 50

Layer where Cardiomyocytes are located

Answer 50

Myocardium

Question 51

Layer where muscle fibers are arranged in a spiral pattern around the chambers of the heart

Answer 51

Myocardium

Question 52

True or False, Impulse-generating cells are present in myocardium

Answer 52

True

Question 53

This layer is the external layer of the heart

Answer 53

Epicardium

Question 54

This layer consists of a surface mesothelium supported by a thin layer of connective tissue

Answer 54

Epicardium

Question 55

True or False, Epicardium contains a loose connective tissue, nerves, blood vessels, and small amount of adipose tissue

Answer 55

False, it contains a large amount of adipose tissue

Question 56

These are modified cardiac muscles that initiates contraction and conduction of electrochemical impulses

Answer 56

Conducting System

Question 57

Enlarged Cardiac Muscle fiber that specializes in conducting impulses

Answer 57

Purkinje Fibers