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Exam 3: Heart and Great Vessels Part 1
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Where is the heart located?
between pleural cavities in space known as middle mediastinum
What covers the surface of the heart?
visceral pericardium
What surrounds the heart?
pericardial sac
What covers the inner surface of the pericardial sac?
parietal pericardium
What do the pericardial membranes produce?
serous fluid
Where is the serous fluid from the pericardial membranes contained?
in pericardial cavity
What does the pericardium surround?
heart and beginning of great vessels
How many layers does the parietal pericardium consist of?
2 layers (fused together)
What are the layers of parietal pericardium?
outer fibrous layer
inner serous layer
What is the outer fibrous layer of parietal pericardium continuous with?
great vessels
What does the outer fibrous layer of parietal pericardium fuse with?
surrounding structures
Where is the inner serous layer of parietal pericardium?
lines interior of pericardial sac
What is the inner serous layer of parietal pericardium continuous with?
visceral pericardium
Where is the visceral pericardium?
on external surface of heart
What is the visceral pericardium?
serous membrane continuous with innerlayer of parietal pericardium
What does it mean when it says the visceral pericardium is a serous membrane?
it produces clear watery fluid to prevent friction
Where is the pericardial cavity?
space between two layers of pericardium
What is contained in the pericardial cavity?
small quantity of pericardial fluid
The pericardiacophrenic artery is a branch of what?
internal thoracic artery
What nerve does the pericardiacophrenic artery travel with?
phrenic nerve
What does the pericardiacophrenic artery supply?
respiratory diaphragm
Which arteries are associated with the heart?
pericardiacophrenic a
descending aorta
interal thoracic a
What are the several small branches off the descending aorta?
pericardial branches
What are the several small branches off the internal thoracic artery?
pericardial branches
Is the phrenic nerve motor or sensory?
both
Which nerves provide sensory (pain) branches to the pericardium?
phrenic nn
intercostal nn
The phrenic nerve provides sensory to which structures?
pericardium and diaphragm
Where is the right border of the heart?
1/2' right of sternum
from 2nd to 5th costal cartilages
What structures are included in the right border of the heart?
superior vena cava
right atrium
Where is the left border of the heart?
3 1/2" left of midline
from 2nd costal cartilage to 6th intercostalspace
What structures are included in the left border of the heart?
left auricle
left ventricle
Where is the inferior border of the heart?
outlines right ventricle
Where does the left coronary artery begin?
in left sinus of aortic semilunar valve
Where does the left coronary artery divide into two terminal branches?
in atrioventricular sulus
What are the two terminal branches of the left coronary artery?
anterior interventricular branch
circumflex branch
What is another name for the anterior interventricular branch?
anterior descending artery
LAD (left anterior descending artery)
Where is the anterior interventricular branch found?
in interventricular sulcus on anterior surface
continues to inferior margin and onto posterior surface
What does the anteiror interventricular branch of the left coronary artery anastomosis with?
posterior interventricular artery
What does the anterior interventriculat branch of the left coronary artery supply?
both ventricles
Where is the circumflex branch of the left coronary artery found?
in atrioventricular sulcus
What does the circumflex branch of the left coronary artery anastomosis with?
right coronary artery
Where does the circumflex branch of the left coronary artery anastomoses with the right coronary artery?
on posterior surface of the heart
Where does the right coronary artery begin?
in right sinus of aortic semilunar valve
Where is the right coronary artery found?
in atrioventricular sulcus
What are the branches of the right coronary artery?
nodal branch
marginal branch
posterior interventricular branch
What does the nodal branch of the right coronary artery supply?
sino-atrial node (pacemaker)
Where does the marginal branch of the right coronary artery go?
to the right ventricle
Where is the posterior interventricular branch of the right coronary artery found?
in posterior interventricular sulcus
The posterior interventricular branch of the right coronary artery gives off branches to what?
both ventricles
What does the posterior interventricular branch of the right coronary artery anastomosis with?
anterior interventricular artery
Where does the great cardiac vein begin?
in anterior interventricular sulcus
Where does the great cardiac vein terminate?
coronary sinus
What does the coronary sinus empty into?
right atrium
Where does the small cardiac vein begin?
lower border of right ventricle
Where does the small cardiac vein terminate?
coronary sinus
Where do the anterior cardiac veins begin?
on anterior surface of right ventricle
Where do the anterior cardiac veins terminate?
directly into right atrium
Where does the middle cardiac vein begin?
posterior interventricular sulcus
Where does the middle cardiac vein terminate?
coronary sinus
What is another name for the venae cordi minimae?
Thebesian veins
Are the venae cordis minimae microscopic?
yes
Where do the venae cordis minimae begin?
inside muscle tissue of heart wall
Where do the venae cordis minimae open into?
open directly into chambers of the heart
Author:
brau2308
ID:
161943
Card Set:
Exam 3: Heart and Great Vessels Part 1
Updated:
2012-07-11 18:29:56
Tags:
anatomy heart
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Description:
review of 7/11 lecture on heart and great vessels for exam 3
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