Informational Site NetworkInformational Site Network
Privacy
 


Home


Medical Articles


Mother's Remedies


Household Tips


Medicine History


Forgotten Remedies


Search

Medical Articles

Blood Pressure

The study of the blood pressure has become a subject of gre...

Resume Of After-care Of A Tracheotomic Case

1. Always bear in mind that tracheotomy is not an ultimate ...

Expectoration

What is commonly called a "cough and spit" is sometimes due to...

Fright

Some most distressing troubles come as the result of frights. ...

Skin Care Of

Among the vast majority of people air and water far too seldom...

Band Flannel

A piece of fine new flannel made to cover the whole back, and ...

Diets To Heal The Critically Ill

A critically ill person is someone who could expire at any mo...

Compression Stenosis Of The Esophagus

The esophagus may be narrowed by the pressure of any periesop...

Cardiac Drugs

Whether any drug should be used which acts directly on the he...

Aphonia Loss Of Voice

This affection requires treatment variously, as it depends on...

Palpitation Of The Heart

This is commonly a symptomatic or sympathetic affection--rare...

Toothache

This trouble appears in two opposite characters. In the one it...

Health And Money

It will be noticed that the remedies we recommend are in almos...

Myocarditis Fibrous Management

The advice he should receive is well understood: to avoid phy...

Inflammation Of The Bowels - Enteritis

This consists in inflammation of the muscular and peritoneal ...

Erysipelas

This is a disease of the skin, producing redness, burning and...

Calendula

is applied to wounds, _incised_ and _lacerated_, promoting he...

Racks From Lifting

See Muscular Pains; Sprains. ...

Normal Blood Pressure For Adults

Woley [Footnote: Woley, II. P.: The Normal Variation of the S...

Retrograde Esophagoscopy

The first step is to get rid of the gastric secretions. Ther...



Pathology





Category: Uncategorized
Source: Disturbances Of The Heart

The pathology of arteriosclerosis is a thickening and diminishing
elasticity of the arteries, beginning with the inner coat and
gradually spreading and involving all the coats, the larger arteries
often developing calcareous deposits or thickened cartilaginous
plates--an atheroma. If the thickening of the walls of the smaller
vessels advances, their caliber is diminished, and there may even be
complete obstruction (endarteritis obliterans). On the other hand,
some arteries, especially if the calcareous deposits are
considerable, may become weakened in spots and dilation may occur,
causing either smaller or larger aneurysms.

Histologically the disease is a connective tissue formation
beginning first as a round-cell infiltration in the subendothelial
layer of the intima. This process does not advance homogeneously;
one side of an artery may be more affected than the other, and the
lumen may be narrowed at one side and not at the other, allowing the
artery to expand irregularly from the force of the heart beat. As
the disease continues, the internal elastic layer is lost, the
muscular coat begins to atrophy, and then small calcareous granules
may begin to be deposited, which may form into plates. In the large
arteries, the advance of the process differs somewhat. There may be
more actual inflammatory signs, fatty degeneration may occur, and
even a necrosis may take place.

However generally distributed arteriosclerosis is, in some regions
the disease is more advanced than in others, and in those regions
the most serious symptoms will occur. The regions which can stand
the disease least well are the brain and coronary arteries, and next
perhaps the legs, at the distal parts at least, where the
circulation is always at a disadvantage if the patient is up and
about.





Next: Symptoms

Previous: Coronary Sclerosis



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 1154