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46 terms

Anatomy of the Heart, Conduction System of the Heart

Exercise 30 and 31
STUDY
PLAY
location of the heart in the thorax
mediastinum
superior heart chambers
atria
inferior heart chambers
ventricles
visceral pericardium
epicardium
anterooms of the heart
atria
equals cardiac muscle
myocardium
provides nutrient blood to heart muscle
coronary arteries
lining of the heart chambers
endocardium
actual "pumps" of the heart
ventricles
drains blood into the right atrium
coronary sinus
right atrium and left atrium
Right-G, Left-R
right ventricle and left ventricle
Right-J, Left-U
Superior and Inferior vena cava
Superior-B, Inferior-K
Ascending aorta
D
Aortic arch
N
Brachiocephalic artery
A
Left common carotid artery
L
Left subclavian artery
M
Pulmonary trunk
E
Right and Left pulmonary arteries
Right-C, Left-P
Ligamentum arteriosum
O
Right and left pulmonary veins
Right-F, Left-Q
Right and left coronary arteries
Right-H, Left-T
Anterior cardiac vein
I
Circumflex artery
S
Anterior interventricular artery
W
Apex of the heart
X
Great cardiac vein
V
1) Right atrium through the tricuspid valve to the ___________........
Right ventricle
2).......through the______________valve, to the pulmonary trunk.......
pulmonary semilunar
3)......to the_____________________, to the capillary beds of the lungs.......
Right and left pulmonary arteries
4).......to the____________, to the _____________of the heart......
pulmonary veins, left atrium
5)....through the______________valve to the___________ through the ____________valve to the__________..........
mitrallbiscupid, left ventricle, aortic semilunar, aorta
6).......to the____________of the tissues, to the systematic veins to the ______________, ____________, and the ________________entering the right atrium of the heart.
capillary beds, inferior vena cava, superior vena cava, coronary sinus.
List the elements of the intrinsic conduction system in order starting from the SA node.
AV node----AV bundle----bundle branches----Purkinje fibers
Desribe what happens in the cardiac cycle immediately before the P wave
heart is in diastole
Desribe what happens in the cardiac cycle during the P wave
depolarization of the atria
Desribe what happens in the cardiac cycle immediately after the P wave (P-R segment)
contraction of thecycles
Desribe what happens in the cardiac cycle during the QRS wave
depolarization of ventricles
Desribe what happens in the cardiac cycle immediately after the QRS wave (S-T interval)
contraction of ventricles
Desribe what happens in the cardiac cycle during the T-wave
repolarization of ventricles
Tachycardia
heart rate over 100 beats per minute
Bradycardia
heart rate below 60 beats per minute
Fibrillation
rapid, uncoordinated heart contractions that makes the heart useless as a pump.
Foramen Ovale (Fetal)
Fossa Ovalis (Adult)
Ductus Arteriosus (Fetal)
Ligamentum Arteriosum (Adult)