Scania Organizational Behavior
Case Study
Introduction This report is intended to introduce
case studies of organizational behaviors around
Scania, a leading manufacturer and marketing
company for trucks and buses in the world. In
this article I will describe some organizational
behavioral m...
Heart, arteries, capillaries, veins, back to heart
Key Terms
● Arteries
Efferent blood vessels: carry blood away from heart, oxygenated blood (exception: pulmonary
arteries carry deoxygenated blood to the lungs)
- Conducting arteries: large, exit from heart, aorta and pulmonary trunk, ability to
expand to withstand pressure from blood search, elastic tissue,
- Atherosclerosis refers to the buildup of fats, cholesterol and other substances in and
on your artery walls (plaque), which can restrict blood flow. Death or stroke
- Aneurysm :weak point in artery, weaken until rupture or death
- Medium/muscular arteries (distributing arteries): direct branches from conducting
arteries, thick muscular wall 40 layers of smooth muscle, 75% of the arterial walls, ex
branchial, femeral arteries
- Resistance arteries/small: too small to name
- Metarterioles: short vessels, arterial system to the capillaries beds
● Veins
Afferent blood vessels: bringing blood back to heart, carry deoxygenated blood(exception
pulmonary veins are leaving lungs bringing oxygenated blood to heart), capacitance vessels:
hold large amount of blood, thin flaccid wall, 11% of blood is found in arteries, 54% of blood
found in veins , lower blood pressure than arteries, small veins into larger veins
- Post capillaries veins to post capillaries venules, medium veins: drain blood from organs
and muscle (median or ulnar vein) contains valves: help pump blood back into heart,
skeletal muscle pump
- Large vein(Venus sinuses) thin walls, large lumen, ex coronary sinus of heart
- Inferior and superior vena cava
● Afferent
● Efferent
● Capacitance Vessels
● Superior vena cava: drain above the diaphragm , right atrium, tricuspid valve into right
ventricle, pulmonary semilunar valv, pulmonary trunk, left right pulmonary arteries, lungs, return
to heart by pulmonary veins to left atrium , bicuspid valve, left ventricle, aorta semilunar valve ,
ascending aorta , Right/Left Coronary Arteries and Sinus, right atrium again.
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