Heart & Great Vessels (Exam 1) Flashcards
Which pericardium is this?
-irregular dense fibrous connective tissue sac continuous with adventitia of great vessels superiorly and central tendon of diaphragm inferiorly
Test q
Fibrous pericardium
Which pericardium is this?
-serous membranes inside fibrous pericardium surrounding heart
-parietal layer
-pericardial cavity containing pericardial fluid
-visceral layer (epicardium)
Test q
Serous pericardium
What are the 3 layers of the heart wall?
Test q
1) epicardium (visceral layer of serous pericardium, outer layer of heart wall)
2) myocardium (cardiac muscle, middle layer)
3) endocardium (continuous with tunica interna of blood vessels, inner layer)
What are the 3 cardiac surfaces?
1) sternocostal
2) diaphragmatic
3) pulmonary (right and left)
Note: there’s also an apex and base of heart
What are the auricles (R/L) of the heart? What is the function?
-also called atrial appendages
-ear like conical muscular pouch that arises from each atrium
-functions to increase the capacity of the atrium and also increases the volume of blood that its able to contain
The coronary (atrioventricular) sulcus is a shallow groove on the outer surface of the heart making the division between the…
Atria and the ventricles
The left coronary sulcus is marked by the ________________________________ and coronary sinus
circumflex branch of the left coronary artery
The right coronary sulcus is marked by the location of the….
Right coronary artery and small cardiac vein
The interventricular sulcus (A,P) are anterior and posterior grooves on the surface of the heart that lie over the interventricular septum and join at the…
Apex
The great vessels of the superior mediastinum has both arteries and veins. What are the arteries?
Aortic arch
-Brachiocephalic trunk (BCT)
»right common carotid artery (CCA)
»right subclavian artery (SC)
-left CCA
-left SC
The great vessels of the superior mediastinum has both arteries and veins. What are the veins?
-right and left brachiocephalic veins
-superior vena cava (SVC)
What are the chambers of the heart?
L/R atria and L/R ventricles
What atrial features are on the right side of heart?
Test q
-auricle
-pectinate muscles
-fossa ovalis
-ostea (openings)
»superior vena cava (SVC)
»IVC
»coronary sinus
What are the atrial features of the left side of heart?
Test q
-auricle
-pectinate muscles
-ostea (openings)
»4 pulmonary veins
What are the ventricular features on the right and left side of heart?
Test q
-trabeculae carneae muscles (note he also likes to tag this in lab)
-papillary muscles
-chordae tendonae (tendons)
RIGHT ventricle only
-septomarginal trabeculae (moderator band)
What are the 2 septums of the heart?
Test q
1) interatrial septum
2) interventricular septum
What are the 2 atrioventricular (AV) valves of the heart?
Test q
1) right AV valve (also known as tricuspid valve)
2) left AV valve (also known as bicuspid valve or mitral valve)
What are the 2 semilunar valves of the heart?
Test q
1) pulmonary valve (goes to pulmonary trunk)
2) aortic valve (goes to trunk of aorta)
What are the 2 types of heart cells?
1) conductive (autorhythmic, or nodal) cells
2) contractile (cardiac muscle) cells
Which heart cells are a part of the intrinsic conductive system?
conductive (autorhythmic, or nodal) cells