External Features of the Heart

Question 1

know the sides of the hearts pyramid

Question 2

What is an external sulci?

Answer 2

heart divides into 4 chambers (2 atria and 2 ventricles) to produce surface grooves referred to as sulci.

Question 3

What is the coronary sulcus?

Answer 3

-circles the heart and separates the atria from the ventricles

Question 4

The coronary sulcus contains?

Answer 4

-right coronary a.
-sm. cardiac v
-coronary sinus
-circumflex branch of left coronary a.

Question 5

The Anterior and posterior interventricular contain?

Answer 5

LAD, Great Cardiac Vein Posterior interventricular B. and Middle Cardiac Vein

Question 6

Know your anterior surface structures ppt 6, 7, 8

Question 7

The coronary arteries arise from the ?

Answer 7

-aortic sinuses in the initial portion of ascending aorta and supply the heart.

Question 8

The arterial vessels supply the heart by?

Answer 8

-encircling the heart in coronary sulcus and transversing the anterior and posterior surfaces by traveling thru INTERVENTRICULAR SULCI.

Question 9

explain ppt 10
know ppt 11

Question 10

The left of heart:
arises from? Gives blood to ?

Left (main) coronary artery:

Answer 10

-arises from the aorta
-distributes blood to a larger area of myocardium than the right coronary artery.

Question 11

The left coronary artery supplies:

Answer 11

-most of the left ventricle
-left atrium
-bundle of His
-anterior aspect of the interventricular septum

Question 12

the left coronary artery bifurcates into what 2 major vessels?

Answer 12

-Left anterior descending artery
-left circumflex artery

Question 13

the left anterior descending artery/ interventricular a.

Answer 13

-gives diagonal branch

Question 14

the left anterior descending artery/ interventricular a. SUPPLIES?

Answer 14

-anterior region of the left ventricle
-apex
-anterior interventricular septum
-anterolateral papillary muscle

Question 15

left circumflex artery supplies the ?

Answer 15

-posterolateral side of the left ventricle

Question 16

The left circumflex artery

Answer 16

wraps around the left side to the posterior side of the heart and gives of the LEFT MARGINAL branch.

Question 17

The right coronary artery:

Answer 17

-arises from the aorta

Question 18

The right coronary artery supplies the ?

Answer 18

-right atrium
-right ventricle
-sinuatrial (SA) node
-AV node

Question 19

the right coronary gives rise to the following artery branches:

Answer 19

-posterior descending artery

-right marginal artery

-SA nodal artery

Question 20

-posterior descending artery supplies the …

Answer 20

-inferior wall
-posterior interventricular septum
-posteromedial papillary muscle

Question 21

Right marginal artery supplies the

Answer 21

-the right ventricular wall

Question 22

SA nodal artery:

Answer 22

-passes btw the right atrium and the opening of the superior vena cava and supplies the SA node.

Question 23

How is coronary dominance determined ?

Answer 23

-by the coronary arteries (right or left) that GIVES RISE TO THE POSTERIOR INTERVENTRICULAR ARTERY.

Question 24

The posterior interventricular septum and part of the left ventricle are supplied by the?

Answer 24

-posterior interventricular A

Question 25

look at ppt 17

Question 26

When does the maximum blood flow to the myocardium occcur?

Answer 26

-heart is relaxed

Question 27

little blood flow occurs when

Answer 27

-heart is contracting

Question 28

ppt 19

Question 29

the coronary sinus :

Answer 29

-largest vein draining deoxygenated blood from heart -lies in the coronary sulcus -collects most of the venous return from [great, middle, small cardiac veins]

Question 30

Great cardiac vein

Answer 30

-begins at apex of heart -ascends in anterior inter -runs parallel to left anterior descending artery into coronary sinus

Question 31

what are the 3 cardiac veins?

Answer 31

-Great cardiac vein -Middle cardiac vein -small cardiac vein

Question 32

middle cardiac vein

Answer 32

-begins at apex of the heart -ascends in the posterior interventricular sulcus - // to posterior interventricular artery and drains to coronary sinus

Question 33

small cardiac vein

Answer 33

-runs along margin of the heart - runs with the right marginal artery - drains to the coronary sinus

Question 34

review ppt 22, 23, 24

Question 35

What is coronary Angiography?

Answer 35

catheter passed in the ascending aorta through femoral/radial artery

Question 36

What is coronary artery disease

Answer 36

-lipid deposits in the coronary arteries

Question 37

What is angina pectoris and myocardial infarction?

Answer 37

-pain originates in the heart due to ischemia -dec in O2 results in lactic acid build up which causes pain receptors [pain in L shoulder, down l arm]

Question 38

Internal Thoracic artery

Answer 38

-carries oxygenated blood flow to ventricles

Question 39

Where to we obtained heart pulses?

Answer 39

-radial artery pulse -ulnar artery pulse -brachial artery pulse -carotid artery pulse -facial artery pulse Lower: --femoral artery pulse -popliteal artery pulse -posterior tibial artery pulse dorsalis pedis artery pulse

Question 40

What drains the Brachiocephalic vein

Answer 40

superior vena cava, which goes on to drain into the right atrium of the heart.