Heart Anatomy

Question 1

Epicardium

Answer 1

-Visceral (close to heart) layer of pericardial sac

Question 2

What is the function of the epicardium?

Answer 2

Reduces Friction

Question 3

What kind of tissue is the epicardium composed of?

Answer 3

Simple Squamous -good for diffuse and keeps the surface slick

Question 4

Myocardium

Answer 4

Cardiac Muscle (myo=muscle)

Question 5

Endocardium

Answer 5

-Inside the heart chambers

Question 6

What kind of tissue is the endocardium composed of?

Answer 6

Simple Squamous (because it needs to be slick)

Question 7

Where is endothelium found?

Answer 7

Lining the blood vessels of the coming in and out of the heart

Question 8

What are the three layers of the heart?

Answer 8

Epicardium, Myocardium, and Endocardium

Question 9

Superior Vena Cava Function

Answer 9

Brings blood from the upper body to the right atrium

Question 10

What does superior vena cava mean?

Answer 10

“Great Vein”

Question 11

Inferior Vena Cava Function

Answer 11

Brings blood from the lower body to the heart

Question 12

Right Atrium Function

Answer 12

Receives deoxygenated blood from the vena cavas

Question 13

Tricuspid Valve

Answer 13

-One way valve that allows blood to flow from the right atrium to the right ventricle -Has 3 tendons called cordae tendonae anchored to the papillary muscles

Question 14

What are the tendons of the heart called?

Answer 14

Cordae Tendonae

Question 15

Right Ventricle

Answer 15

-Pumps blood through the pulmonary semi-lunar valves and into pulmonary trunk which separates into the two pulmonary arteries

Question 16

Pulmonary Semi-Lunar Valve

Answer 16

pulmonary= lungs semi-lunar= half moon leaflets named after the pulmonary artery

Question 17

Pulmonary Artery

Answer 17

blood is going away from the heart to the lungs

Question 18

Which way do arteries carry blood?

Answer 18

Away from the heart

Question 19

Pulmonary Veins

Answer 19

-carry oxygenated blood from lungs to heart -2 from left lung, 2 from right lung

Question 20

Left Atrium

Answer 20

-Receives blood from pulmonary veins

Question 21

Bicuspid Valve (Mitral Valve)

Answer 21

-built like the tricuspid but with only 2 leaflets

Question 22

Left Ventricle

Answer 22

-Pumps oxygenated blood to the rest of the body

Question 23

What is the strongest part of the heart?

Answer 23

Left Ventricle

Question 24

Aortic Semi-Lunar Valve

Answer 24

-built like pulmonary SL valve -name given because it is located in the aorta

Question 25

Aortic Arch

Answer 25

-carries blood to the rest of the body -descending aorta drops down behind

Question 26

What is the largest artery in the body?

Answer 26

Aortic

Question 27

Brachiocephalic Artery

Answer 27

-branches into the right subclavian and right common carotid -feeds right arm and right face/brain

Question 28

Common Carotid Artery

Answer 28

-feeds left side of face and brain

Question 29

Left Subclavian Artery

Answer 29

-feeds left arm

Question 30

What artery branching off of the aorta feeds the right arm and right face/brain?

Answer 30

Brachiocephalic Artery

Question 31

Answer 31

Tricuspid Valve

Question 32

Answer 32

Superior Vena Cava

Question 33

Answer 33

Right Ventricle

Question 34

Answer 34

Pulmonary Semi-Lunar Valve

Question 35

Answer 35

Right Atrium

Question 36

Answer 36

Pulmonary Veins

Question 37

Answer 37

Pulmonary Artery

Question 38

Answer 38

Myocardium

Question 39

Answer 39

Left Ventricle

Question 40

Answer 40

Left Subclavian Artery