Heart

Question 1

Heart location

Answer 1

in the media stienum from the sternum and vertebral column between the lungs, on top of the diaphragm

Question 2

Pericardium

Answer 2

serous membrane surrounding the heart

Question 3

outer layer of pericardium

Answer 3

Parietal layer: attached to the fibrous pericardium

Question 4

what are the pericardial layers

Answer 4

3 layers. Fibrous pericardium->parietal layer of serous pericardium-> pericardial cavity-> epicardium(visceral layer of serous pericardium)

Question 5

Pericardial cavity

Answer 5

Cavity between the parietal layer and visceral/epicardium layer of serous pericardium

Question 6

Outermost layer of the pericardium

Answer 6

Fibrous pericardium

Question 7

outermost layer of serous pericardium

Answer 7

Parietal layer

Question 8

Epicardium

Answer 8

Visceral layer, deepest layer of serous pericardium and also first layer of the heart wall.

Question 9

layers of the heart wall

Answer 9

epicardium->myocardium->endocardium

Question 10

Muscle layer of the heart wall

Answer 10

Myocardium

Question 11

part of both serous pericardium and heart wall

Answer 11

epicardium/visceral layer of serous pericardium

Question 12

what veins allow blood to enter the heart

Answer 12

3 ways: superior vena cava (above), inferior vena cava (below), coronary sinus (blood from heart muscle)

Question 13

where does blood enter the heart

Answer 13

all blood enters the right atrium

Question 14

Atria

Answer 14

Upper chambers of the heart

Question 15

auricle

Answer 15

a wrinkled pouch-like part of the atria

Question 16

Ventricles

Answer 16

lower chambers of the heart, does the major pumping of blood

Question 17

which part of the heart does the major pumping

Answer 17

ventricles

Question 18

indentations in the heart are called

Answer 18

sulcus

Question 19

feature of the heart that has boundaries marked by blood vessels

Answer 19

Sulcus

Question 20

Coronary sulcus

Answer 20

relatively deep boundary between atria and ventricles

Question 21

anterior interventricular sulcus

Answer 21

shallow sulcus between the R and L ventricle

Question 22

Posterior interventricular sulcus

Answer 22

connects to the Ant. interventricular sulcus

Question 23

Features of the right atrium

Answer 23

Posterior wall relatively smooth
Anterior wall roughness caused by pectinate muscles

Question 24

Interatrial septum

Answer 24

divides the R from L atrium, has fossa ovalis (left over from the fetal opening foramen ovalea)

Question 25

how does blood leave the right atrium

Answer 25

The tricuspid valve pens into the right ventricle

Question 26

Heart valve features

Answer 26

made of dense CT and covered by endocardium

Question 27

Right ventricle features

Answer 27

has ridges of cardiac muscle known as trabeculae carnier which makes it bumpy

Question 28

trabeculae carnier

Answer 28

ridges of cardiac muscle in the right ventricle

Question 29

Interventricular septum

Answer 29

Divides the right and left ventricle

Question 30

which ventricle has a thinner myocardium

Answer 30

the right ventricle because it doesn’t need as much pressure to push blood from the heart to the lungs

Question 31

where does blood exit the right ventricle

Answer 31

the pulmonary valve (semilunar valves) opens to the pulmonary trunk

Question 32

What does the pulmonary trunk divide into

Answer 32

the R and L pulmonary arteries, goes to R and L lungs