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Heart 1

TermDefinition
What are the heart and roots of the great vessels enclosed in pericardium
What are the two serous membranes Visceral pericardium and parietal pericardium
Visceral pericardium inner layer of sac thats attached to the heart like skin of apple
Parietal pericardium outer sac thats fibrous and is made of connective tissue
pericardial cavity space between pericardial coverings
serous fluid thin layer of water fluid that lessens friction caused by pumping of the heart
pericarditis inflammation of the serous membranes covering the heart
How is the heart situated obliquely between the lungs
The rib cage aids in protection for the heart from forces of the external environment
is the heart static or not static not static
Right border curved line from 3rd rib to junction of xyphoid process and body of sternum.
Left border curved line from 2nd rib to left 5th intercoastal space
Lower border line passing through junction of body and xyphoid process of sternum
How far does heart extend 3rd rib
how far does pericardial sac extend 2nd rib
anterior surface formed by right atrium and right ventricle
inferior surface surface on which heart rests and is formed by both ventricles
Grooves partitions between chambers and where coronary blood vessels run
atrioventricular sulcus separates atria from ventricles and origin of right and left coronary artery and circumflex artery
anterior/posterior interventricular sulci separates right and left ventricles and contains inter ventricular arteries
What is the heart wall composed of epicardium myocardium and and endocardium
Epicardium Visceral, outermost, fibrous CT, coronary vessels
myocardium middle, cardiac muscle, conduction capabilities
endocardium innermost, simple squamos, endothelial cells, valves are also covered with this.
How do you enter the heart superior or inferior ven cava or the coronary sinus
coronary sinus carries blood from the coronary circulation
1st step in path of heart enter through a major vein
2nd step in path of heart Right atrium
Right atrium has right atrial septum at the left and a fossa oval and the left atrium and tricuspid valve and SA and AV nodes for conduction
3rd step in path of heart Tricuspid valve
4th step in path of heart Right ventricle
Right ventricle has papillary muscles, chordae tendineae and pulmonary trunk
Papillary muscles fingerlike extensions from wall of heart, prevents inversion and stabilizes valve. NOTHING TO DO WITH CLOSING OF THE VALVE!!!!
chordae tendineae strings on a guitar
pulmonary trunk divides into 2 pulmonary arteries which carry deoxygenated blood to the lungs.
How do arteries return via pulmonary veins carrying oxygenated blood
5th step in path of heart pulmonary semilunar valve
6th step pulmonary artery
7th step lungs
What do you do in the lungs pick up oxygen and release co2
How do you return to heart through 1 of 4 pulmonary veins
Pulmonary veins carry oxygenated blood away from the heart
8th step left atrium
9th step Bicuspid valve
10th step left ventricle
11th step aortic semilunar valve
12th step leave heart and enter arch of the aorta
Created by: maheensa