3/4- Heart (Exam 2) Flashcards
What are gap junctions?
Connects cytoplasm of one cell to the cytoplasm of another cell
Things can move from cell to cell
Ions are in motion
Movement of charges are electrical current
All interconnected
What side of the heart do you see with the left and right wrist?
Left wrist- left side
Right wrist- right side
What is a calibration wave?
Direct measure of how much electricity is produced
Height and depths
Very beginning or very end
Millivolts
What is the bottom of the heart called?
Apex
What is the top of the heart called?
Base
What is the groove between the atriums and the ventricles?
Atrioventricular sulcus
Or
Coronary sulcus
What is the groove between the ventricles called?
Inter-ventricular sulcus
What layer of the heart wall is the white material in the ventricles?
Endocardium
What is the layer of the heart wall that is the interventricular septum?
Myocardium
What is the layer of the heart wall on the surface of the heart?
Epicardium
What is the right auricle?
The outside of the right atrium
What is the left auricle?
Outside of left atrium
What is the wall that divides the 2 ventricles?
Interventricular septum
What is the valve between the right atrium and ventricle?
Tricuspid
What is the valve between the left atrium and ventricle?
Bicuspid
What are the string like structures?
Chordae tendineae
What are the finger like structures on the wall of the ventricles?
Papillary muscles
What is the valve between the pulmonary trunk and right ventricle?
Pulmonary semilunar valve
What is the valve between the aorta and the left ventricle?
Aortic semilunar valve
What is the artery under the pulmonary trunk when you open the left ventricle (little piece)?
Left coronary artery
What is the artery that is on the left ventricle?
Anterior interventricular artery
Or
Left anterior descending artery
What is the artery that circles around the left atrium and ventricle?
Circumflex artery
What is the artery between the right atrium and ventricle?
Right coronary artery
What is the artery that is going down on the side of the right ventricle?
Marginal artery
What is the artery between the ventricles posterior?
Posterior interventricular artery
Or
Posterior descending artery
What is the vein on the left ventricle?
Great cardiac vein
What is the vein posterior of heart between ventricles?
Middle cardiac vein
What is the vein that connects to the coronary sinus posterior to heart?
Small cardiac vein
What is the thick vein posterior to the heart between atriums and ventricles?
Coronary sinus
What is the node inside the wall of the right atrium that looks like a crab?
Sinoatrial node (SA node)
What is the node deep I see the right atrium that also looks like a crab?
Atrioventricular node (AV node)
What is the bundle that is near the AB node (59)?
Bundle of his
Or
Atrioventricular node
What are on the walls on the inside of the ventricles?
Right and left bundle branches?
What are the super thin lines inside the ventricles?
Purkinje fibers
