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
