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| − | ==Functional Anatomy== | + | {{frontpage |
| | + | |pagetitle =Arterial Pathology |
| | + | |pagebody = <div style="text-align: left; direction: ltr; margin-left: 1em;"> |
| | + | '''Functional Anatomy''' |
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| | Arteries, capillaries and veins form a continuous system lined by endothelium. The endothelial layer is low friction to allow smooth blood flow. The endothelium forms the innermost layer of arteries; | | Arteries, capillaries and veins form a continuous system lined by endothelium. The endothelial layer is low friction to allow smooth blood flow. The endothelium forms the innermost layer of arteries; |
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| | *''Arterioles'' regulate resistance to the flow of blood and therefore regulate peripheral blood pressure. The muscle layer is smaller than that of the larger muscular arteries. Opening or closing of the arterioles directs flow to specific capillary beds. | | *''Arterioles'' regulate resistance to the flow of blood and therefore regulate peripheral blood pressure. The muscle layer is smaller than that of the larger muscular arteries. Opening or closing of the arterioles directs flow to specific capillary beds. |
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| − | ==[[Arterial Hypertrophy]]== | + | </div> |
| | + | |contenttitle =Content |
| | + | |contentbody =<big><b> |
| | + | <categorytree mode=pages>Arterial Pathology</categorytree> |
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| | + | </b></big> |
| | + | |logo =path-logo.png |
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| − | ==Degeneration==
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| − | ===[[Arteriosclerosis]]===
| + | [[Category:Cardiovascular_System_-_Pathology]] |
| − | | + | [[Category:To_Do_-_Cardiovascular]] |
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| − | ===[[Atherosclerosis]]===
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| − | [[Arterial Calcification]]
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| − | ===[[Amyloidosis]]===
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| − | ==Inflammatory-[[Arteritis]]==
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| − | ==Aneurysm and Rupture==
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| − | [[Image:Dissecting aneurysm 2.jpg|left|thumb|125px|<small><center>'''Dissecting aneurysm'''. Courtesy of A. Jefferies</center></small>]]
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| − | Aneurysm is a local abnormal dilation of a vessel due to weakening of loss of elasticity of the vessel wall.
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| − | [[Image:Dissecting aneurysm 3.jpg|right|thumb|125px|<small><center>'''Dissecting aneurysm'''. Courtesy of A. Jefferies</center></small>]]
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| − | Seen proximal to a stenotic lesion. If the wall partially ruptues blood can track within the wall producing a dissecting aneurysm.
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| − | '''Verminous anurysm''' occurs in horses with strongylus vulgaris infestation.
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| − | Rupture of the vessels is rare. aortic rupture may occur in some situations:
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| − | *Traumatic.
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| − | *Dog: Spirocerca lupi (NOT IN UK)
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| − | *Horse: Verminous aneurysms which rupture. Rupture within the pericardium leads to haemopericardium and [[Cardiac Tamponade - Pathology|Cardiac tamponade]].
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| − | ==Vascular Pathology==
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| − | [[Image:Pulmonary artery thrombus.jpg|right|thumb|125px|<small><center>'''Pulmonary artery thrombus'''. Courtesy of A. Jefferies</center></small>]]
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| − | '''''Thrombosis''''' may be due to:
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| − | *Endothelial injury.
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| − | *Altered blood flow E.g. abnormal stasis.
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| − | *Hypercoagulability.
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| − | Often associated with other disease processes for example [[Disseminated Intravascular Coagulation - Pathology|Disseminated intravascular coagulation]].
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| − | Commonly see [[Atrial_Thrombosis|posterior paralysis]] of cats with cardiomyopathy.
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| − | [[Nasal_thrombosis_in_dog|Nasal thrombosis]].
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| − | [[Image:sarcoma embolus.jpg|left|thumb|125px|<small><center>'''Sarcoma embolus (dog)'''. Courtesy of T. Scase</center></small>]]
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| − | [[Image:DIC thrombus.jpg|right|thumb|125px|<small><center>'''DIC thrombus'''. Courtesy of A. Jefferies</center></small>]][[Category:Cardiovascular_System_-_Pathology]]
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