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Heart
My portion of what i have to remember for my project
16
Anatomy
11th Grade
01/03/2010

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Cards

Term
Systemic Circuit
Definition
1. Left Atria
2. Left Ventricle
3. Aorta + Branches
4. Body Tissues + Veins
5. Right Atria
Term
Left and Right Coronary Artery
Definition
First 2 branches of the aorta,
Supplies blood to the hearts tissue,
their openings lie just beyond the aortic valve.
Term
Cardiac Vein
Definition
Roughly parallel to the coronary arteries.
Drains blood that has passed through myocardial cappilaries.
it joins the coronary sinus and empties into the right atrium.
Term
Apex
Definition
the most inferior part of the heart;
The hearts distal end extends downward and to the left.
Term
Interventricular Septum
Definition
A solid wall the seperates the atrium and ventricle on the right side form those on the left, so blood never mixes
Term
Pulmonary Circuit
Definition
1. Pulmonary trunk
2. L+R pulmonary arteries
3. Lungs
4. Arterioles
5. Capillary network
6. Venules
7. Small veins -> Large Veins -> pulmonary veins from lungs
8. Left Atrium
Term
Where is the heart located?
Definition
Within the mediastinum
Bordered
laterally-lungs
posteriorly-vetebral column
anteriorly-sternum
base-beneath 2nd rib
Term
Skeleton of the heart
Definition
tissue surrounds
-aorta
-pulmonary trunk
Provides attachments
-heart valves
-muscle fibers
Prevents outlet
-Atria
-ventricle
Term
Location of Chambers
Definition
Atria-upper chambers l+r
Ventricles-Lower chambers l+r
Term
Location of Valves
Definition
Tricuspid- between R.A & R.V
Pulmonary- entrance of pul. trunk
Bicuspid- between L.A & L.V
Aortic- entrance of aorta
Term
Valve Functions
Definition
Tricuspid- stop backflow R.V -> R.A
Pulmonary- stop backflow pul trunk->R.V
Bicuspid- stop backflow L.V -> L.A
Aortic- stop backflow Aorta -> L.V
Term
Shape of Heart
Definition
Hollow
Cone-Shaped
Muscle Pump
Located in the thoracic cavity resting on the diaphragm
Term
Function of the Heart
Definition
brings oxygen and nutrients to all body cells and removes waste
Term
Path of blood
Definition
1. Venae Cava + coronary Sinus
2. Right Atrium
3. Trisupid Valve
4. right Ventricle
5. Pulmonary valve
6. pulmonary trunk and ateries
7. Capillaries w/ alveoli in lungs
8. pulmonary veins
9. left atrium
10. biscupid valve
11. left ventricle
12. aortic valve
13. aorta + branches
Term
Where is the myocardium the thickest?
Definition
LEFT VENTRICLE
responsible for the pumping blood throughout the systemic circulation
Term
Left and right auricle
Definition
small earlike projections that extend anteriorly from the atria
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