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ESA 2- Cardiovascular System > Surface Anatomy of Heart > Flashcards

Flashcards in Surface Anatomy of Heart Deck (66)
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1

What does the pericardiac sac consist of?

Fibrous part
Parietal layer
Serous layer

2

What does the fibrous part of the pericardial sac consist of?

Ligament to the stenum (sternopericardial ligament)

3

What happens to the ligament to the sternum?

It inferiorly blends with the diaphragm

4

What does the sternopericardial ligament do?

Holds the heart in place

5

What is the parietal layer?

The outer layer

6

What is the serous layer?

The inner layer

7

What does the serous layer attach to?

The heart and great vessels

8

How are the parietal and serous layers related?

It is one continuous layer that is reflected back on itself

9

What is found between the parietal and serous layers?

A thin layer of fluid

10

What does the thin layer of fluid between the parietal and serous layer do?

Gives a frictionless environment

11

What is the name of the nerves that supply the heart?

Phrenic nerves

12

What are the nerve roots of the phrenic nerves?

C3, 4, 5

13

What do the phrenic nerves supply?

Motor and sensory to the diaphragm
Sensory to the pericardium

14

What is the course of the phrenic nerves?

They descend anterior to the lungs, and then the right descents over the right atrium, and the left over the left atrium

15

What is the heart surrounded by?

Dual layered pericardium

16

Where does the heart lie?

Deep to the sternum, inferior to the great vessels, and superior to the diaphragm

17

What is the anterior pericardial surface attached to?

The posterior surface of the sternum, via the sternopericardiac ligaments

18

What is the inferior pericardial surface fused with?

The diaphragm

19

What consists the anterior surface of the heart?

Right atrium and ventricle

20

What consists the posterior surface of the heart?

Left atrium and ventricle

21

What is the left border of the heart?

Left ventricle

22

What is the inferior surface of the heart?

Right ventricle

23

What is the right border of the heart?

Right atrium

24

What are the blood vessels od the heart?

The coronary arteries and the cardiac veins

25

What do the blood vessels of the heart do?

Carry blood to and from most of the myocardium

26

Where to the coronary blood vessels run?

Across the surface of the heart, just deep to the epicardium, normally embedded in fat

27

What is the first branch of the aorta?

The coronary arteries

28

Where do the coronary arteries arise from?

From the left and right aortic sinuses

29

Where do the aortic sinuses arise from?

The root of the aorta, just superior to the aortic valve

30

Where do the aortic sinuses pass?

Around opposite sides of the pulmonary trunk