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60 Cards in this Set

  • Front
  • Back
R. Atrium
Receives deoxygenated blood from these major vessels:
Superior Vena Cava
Inferior Vena Cava
Coronary sinus
Superior Vena Cava
A large vein formed by the union of the two brachiocephalic veins and the azygos vein that receives blood from the head, neck, upper limbs, and chest, and empties into the right atrium of the heart.
Inferior Vena Cava
A large vein formed by the union of the two common iliac veins that receives blood from the lower limbs and the pelvic and abdominal viscera and empties into the right atrium of the heart.
Coronary sinus
Most of the deoxygenated blood from the myocardium drains into a large vascular sinus in the coronary sulcus on the post. surface of the heart.
Right ventricle
Also receives deoxygenated blood
Blood passes from ___ ____ into pulmonary valve into pulmonary trunk into pulmonary arteries
Pulmonary trunk
Pulmonary artery
Pulmonary trunk
Blood ejected from Rt. ventricle flows into the ___, which branches into pulmonary arteries.
R. pulmonary arteries
Deoxygenated blood gets carried to the right lung
L. pulmonary arteries
Carries deoxygenated blood to the left lung.
L. Atrium
Receives oxygenated blood returning to the heart from the pulmonary veins.
one of the upper chambers of the heart
R. pulmonary veins
L. pulmonary veins
Ascending aorta
largest artery of the body
right and left coronary arteries branch from here.
R. Coronary artery
supplies small branches to the r. atrium. It continues inf. to the r. auricle and ultimitely divides into the post. interventricular and marginal branches.
L. coronary artery
passes inf. to the left auricle and divides into the ant. interventricular and circumflex branches.
away ; toward
Exception in the heart, Arteries carry blood _____ from heart and veins carry blood ______ heart.
deoxygenated ; oxygenated
Exception in heart, pulmonary arteries carry _____ blood and pulmonary veins carry _________ blood.
L. coronary artery
R. coronary artery
Ascending aorta
R. subclavian artery
R. common carotid
L. common carotid artery
L. subclavian
Aortic arch
Aortic arch
ascending aorta turns to the L. which descends and ends at the level of the intervertebral discs btwn. 4th and 5th thoracic vertebrae.
Brachiocephalic trunk
divides to form the r. subclavian artery and r. common carotid artery
R. Subclavian artery
extends from brachiocephalic trunk to the first rib and then passes into the armpit. Then gen. distribution of the artery is brain and spinal cord, neck, shoulder, thoracic viscera wall, and scapular muscles
R. common carotid
divides into the right external and right internal carotid arteries
begins at the bifurcation of the brachiocephalic trunk
passes superiorly in the neck to supply structures in the head
Lft. Common Carotid
second branch from the arch of the aorta
divides into the external and internal carotid arteries
Supplies oxygenated blood to the head and neck regions of the body
Lft. Subclavian
extends from the aortic arch to the left side of the body.
Supplies oxygenated blood to the arms.
Descending aorta
divided into two portions, the thoracic and abdominal
Thoracic aorta
Abdominal aorta
Descending aorta
Thoracic aorta
Visceral branch - Paricardial, Bronchial, Esophageal, and Mediastinal arteries
Parietal branch - Posterior intercostal, Subcostal, Superior phrenic arteries
Abdominal aorta
continuation of the arch of the aorta
lies ant. to vertebral column
begins at aortic hiatus in the diaphram and ends about L4 vertabrae
divides into rt. and lft. common illiac arteries.
Pericardial arteries
Two or three tiny arteries supply blood to the pericardium.
Bronchial arteries
One rt. and two lft. arteries supply the bronchial tubes, pleurae, bronchial lymph nodes, and esophagus
Esophageal arteries
Four or five arteries supply the esophagus.
Mediastinal arteries
Numerous small arteries supply blood to structures in the mediastinum.
Posterior intercostal arteries
Nine pairs of arteries supply the intercostal, pectoralis major and minor, and serratus anterior muscles
overlying subcutaneus tissue and skin
mammary glands
vertebrae, meninges, and spinal cord
Subcostal arteries
The left and right arteries have a distribution sim. to that of the post. intercostals
Superior phrenic arteries
Small arteries supply the sup. and post. surfaces of the diaphram.
Atrioventricular valves
A heart valve made up of membranous flaps or cusps that allows blood to flow in one direction only, from an atrium into a ventricle.
Right AV valve (tricuspid)
Lft. AV valve or bicuspid or mitral valve
Atrioventricular valves
Semilunar valves
allows ejection of blood from the heart into the arteries, but prevents backflows of blood into the ventricles.
Pulmonary semilunar valves
goes to pulmonary trunk
Aortic semilunar valves
goes to aorta
valve support
trabeculae carnae
papillary muscle
chordae tendinae
Coronary circulation
The pathway followed by the blood from the ascending aorta through the blood vessels supplying the heart and returning to the right atrium.
A blood vessel that carries blood away from the heart.
Lft. Coronary
Ant. interventricular branch
Circumflex branch
Rt. Coronary
Post. interventricular branch
Marginal branch
Anterior interventricular branch
Located in anterior interventricular sulcus and supplies oxygenated blood to walls of both ventricles.
Circumflex branch
lies in coronary sulcus
distributes oxygenated blood to walls of Lt. ventricles and Lt. atrium.
Post. interventricular branch
Located in posterior interventricular sulcus; supplies both ventricles
Marginal branch
Supplies right ventricle
Coronary sinus
large vein at back of heart
deoxygenated blood from myocardium empties into right atrium
Vascular sinus
thin walled vein that lacks smooth muscle
Principal tributaries of coronary sinus
carries blood to coronary sinus
Great cardiac vein
Middle cardiac vein
Great cardiac vein
drains ant. aspect of heart
drain part of heart supplied by L. coronary artery - L. and R. ventricle and L. atrium.
Middle cardiac vein
drains posterior aspect of heart
drains part of heart supplied by R. coronary artery - L. and R. ventricles
Conductive System
the route that delivers action potentials throughout the heart muscle
assure that cardiac chambers are stimulated to contract in a coordinated manner (pump)
Sinoatrial node or sa node or pacemaker
sets up heart beat
where cardiac excititation begins
located in R. atrial wall
inferior to opening to superior vena cava
Atrioventricular (AV) node
The action potential slows considerably providing time for atria to empty their blood into the ventricles.
Atrioventricular (AV) bundle or "bundle of His"
The only site where action potentials can conduct from atria to ventricles
Right and Left bundle branches
action potentials course throught the interventricular septum toward apex of heart.
Conduction myofibers (purkinje fibers)
rapidly conduct the action potential, first to the apex of the ventricular myocardium, pushing blood upward to the semilunar valves.
Surface projections
outlining organs dimensions w/ respect to landmarks on surface of body.
carries blood towards the heart
Coronary sinus
Vascular sinus