Coronary Vessels
Blood Vessels
Electric Signaling
Labeling
100
Label 6
right coronary artery
100
Explain efferent versus afferent.
Arteries carry away (efferent), veins carry towards (afferent)
100
True or false: AV valves open upwards
False: they open downwards into the ventricles
100
Label 14
brachiocephalic trunk
200
What run is found running with the anterior interventricular artery?
Great cardiac vein
200
What is the smallest kind of artery?
An arteriole
200
When the atria are contracting, describe the state of our papillary muscles.
AV valve is open, ventricle is relaxed, papillary m. relaxed and chordae tendineae slack.
200
Label 11
Right auricle
300
What are the two coronary vessels that come off the of the aorta?
Right and left coronary artery
300
What is the smallest type of vein?
Venule
300
What cells are the natural pacemakers?
Autorhythmic cells
300
Label 7
Posterior interventricular artery
400
What is the name of the coronary vein that all other veins dump into?
Coronary sinus
400
Describe the difference in diameter of the lumen between an artery and vein.
Large in vein (to hold more volume), smaller in artery
400
When we have a contraction of our ventricles, which valves are opening up?
aortic/ pulmonary semilunar valves
400
Label 13
right pulmonary veins
500
What are the veins that are returning back into the right atrium?
Coronary sinus, superior and inferior vena cava
500
What is a structure that we see in the walls of arteries but not in veins?
Internal elastic lamina
500
What causes the two sounds of our heartbeat?
1st: AV valves closing 2nd: SL valves closing
500
Label 19
Trabeculae carneae