Atherosclerosis and other Arterial Diseases
fusiform and saccular
An aneurysm Forms what kind of shapes
increase to the point of rupture or lead to internal hemorrhage.
An aneurysm increases the blood flows against the wall, it grows weaker. This weakness can lead to "what"?
tearing
Aortic dissection involves, "what" of the aorta.
During Dilation or contraction
Depending on low or high pressure. when does the tunica Intima stretch the cells?
hematoma
Eventually Aortic dissection leads to a "what" that protrudes into the lumen. This reduces blood flow to the major arteries arising from the aorta.
lipid deposits
Foam cells form "what" along the vessel wall, eventually resulting in plaque formation.
blood flow
Foam cells may also break free and obstruct "what" in other areas.
rest
How can you relieve intermittent claudication pain?
silent killer
Hypertension is called the "what" because it is asymptomatic?
right and left arm
In Aortic dissection Pressure differential between?
widen
In Aortic dissection with split lining blood flows between the layers, which traumatizes the region, causing the gap to?
the inner lining and middle
In aortic dissection, aortic weakness leads to a splitting of what layers between muscular wall?
artery is obstructed
In intermittent claudication- what happens causing the oxygenated blood not reach the muscle?
the increase of resistance
Key concept of arteries: what happens to resistance against the heart when greater pressure of blood with in the arteries?
Transient ischemic attack (TIA)
Name for mini stroke?
peripheral pulse
PAD can cause a Decrease in?
gradually
PAD typically develops
femoral artery.
Peripheral artery disease is most commonly occurring in?
Arteries
Peripheral vascular resistance is associated with arteries or veins?
Tunica media
Smooth muscle that constricts and dilate to change artery's diameter.
chest pain and tearing sound
Sudden onset of Aortic dissection symptoms include?
venous return
The amount of blood coming back to the right side of the heart is called?
pulse pressure
The difference between systole and diastole
endothelial cells of vessel walls are damaged
The process of atherosclerosis begins when "what happens" this stimulating inflammation. When this occurs, white blood cells travel to the area of injury
connective tissue
Tunica externa is composed of what material?
Brain- stroke eyes-vision loss heart- failure and attack kidney- disease and failure
What are the Target organ Damage areas for hypertension?
Baroreceptors, RAAS, and ADH
What body mechanisms help with maintaining BP?
LDL: low density lipoprotein
What is counter cardio protective and ends up in arterial walls?
myocardial infarction (MI)
What is the name for a heart attack?
(CVA) cerebral vascular accident
What is the name for a stroke?
False
When plaque accumulates in the arteries it will go away if you change your diet and exercise? True or False
B:
Which of the following is an immediate, life-threatening condition? A: Peripheral artery disease B: Aortic dissection C: Atherosclerosis D: Arterial plaque formation E: Arterial dilation
xanthoma
Yellow raised skin lesions that develop because of intracellular accumulation of excess cholesterol within epithelial cells
plaques of fatty material
atherosclerosis is a change in endothelium caused by "what" in the inner walls?
Left ventricular hypertrophy
excessive work load on left ventricle works harder to pump blood because hypertension is called?
Xanthelasma
fatty deposit under the skin around the eyes
foam cells collect, gather, multiply, and take up space
foam cells act like the support structures that are meant to guide around injury, so area can be repaired. By doing this what happens to the area?
systole
left ventricle forcing blood out and hitting artery walls.
foam cells
macrophages engulf low-density lipoprotein molecules in the blood stream and transform into what?
Arcus senilis
old age syndrome where there is a white, grey, or blue opaque ring in the corneal margin (peripheral corneal opacity)
Tunica externa
outer supportive structure of the artery?
Diastole
relaxation of vessel heart relaxes and refills
veins
stroke volume is associated with the arteries or veins?
arterial wall bulges and an uneven interior surface
what are the aneurysms features? These malformations increase the risk for rupture.
Cholinergic
what are the autonomic nerve fibers in the tunica media controlled by the para-sympathetic response?
Adrenergic
what are the autonomic nerve fibers in the tunica media controlled by the sympathetic response?
Alcohol, stress, fatty diet, smoking, large amounts of salt, caffeine, and sugar.
what are the modifiable Risk factors for atherosclerosis?
-Genetics- 30% higher chance -gender -Race- African Americans have a higher risk
what are the non- modifiable Risk factors for atherosclerosis?
HDL: High density lipoprotein
what binds to fat and brings fat to liver?
aneurysm
what can the result from a weakened arterial lining from atherosclerosis?
Hyperlipidemia
what disease does plaque formation in the Tunica intima eventually will restrict blood flow creating a clot.
occlude
what do Foam cell plaques do in the vessel?
intermittent claudication
what is a classic symptom of PAD. As a person exercises, muscle requires increased oxygenated blood. This means the artery needs to be free and clear of congestion.
Metabolic syndrome
what is a cluster of metabolic disorders. When a patient presents with these conditions together, the chances for future cardiovascular disease is greater than any one factor presenting alone.
Aortic dissection
what is a potentially lethal disorder of the aorta?
Stroke volume
what is amount of fluid ejected per contraction of left ventricle
Peripheral artery disease, P.A.D.
what is an occlusive disorder of the peripheral arteries.
hypertension
what is elevation of BP to values that are correlated with cardiovascular damage?
Abdominal aorta
what is most commonly affected by an aneurysm?
Collateral circulation
what is the alternate circulation around a blocked artery or vein via another path, such as nearby minor vessels.
Atherosclerosis
what is the basic physiological change that causes cardiovascular disease. causes changes in the endothelium.
Tunica intima: endothelium
what is the inner layer of arteries?
Atherosclerosis pregression
what is this picture showing a progression of?
Ankle brachial index
what is used for assessment of PAD?
Metabolically active
what kind of tissues are endothelium? Helps to release substances that respond to blood contents. i.e. blood clots or stop blood clots
Arteries
what muscular walled blood vessels with large amounts of elastic fibers.
C-reactive
what proteins and homocysteine levels are used for assessment?
surgical repair
what treatment is required In Aortic dissection?
middle layer: Tunica Media
which arterial layer is responsible for hypertension?