Test 3: Mara Rendi review Flashcards
What is the general definition of arteriosclerosis?
hardening and thickening of blood vessels
Name 3 arterioscelreosis diseases
Mockeberg’s arteriosclerosis
arteriolosclerosis
atherosclerosis
What is this?
Mockeberg’s arteriosclerosis
It is the calcification of the media
Does Mockeberg’s arterioscleosis obstruct arterial flow?
Nope
What is arteriolosclerosis?
hyaline thickening or proliferation of small vessels. The type of thickening depends on the type of arteriolosclerosis
What are the two types of arteriolosclerosis?
Hyaline arteriolosclerosis
hyperplastic arteriolosclerosis
What is this?
hyaline arteriolosclerosis
Does hyaline arteriolosclerosis obstruct flow?
Yes!
What is this?
hyperplastic arteriolosclerosis
Does hyperplastic arteriolosclerosis obstruct flow?
Yes!
What is atherosclerosis?
The formation of atheromas within the INTIMA
What are the components of a atheroma-plaque?
central core
fibrous cap
What is in the central core?
cholesterol
foam cells (macrophages with lipid inside of them)
necrotic debris
calcium
What is in the fibrous cap?
collagen
fibrin
smooth muscle
foam cells
What are these pictures trying to show?
fatty streaks
What is this trying show show?
More fatty streaks
Why are fatty streaks important to know about?
They are the first steps in becoming an atheroma-plaque
What is this?
a god damn fatty streak!
What is this?
A atheroma-plaque.
Notice the fibrous cap and the necrotic core
What is this?
early atherosclerosis
What is this slide? What is the arrow showing?
Atherosclerosis
the arrow is pointing to calcification
What is this? What are the “red chunks”?
late atherosclerosis
thrombi that are forming due to the ruptured plaques
What are the “needle” shapes in the central core?
Cholesterol needles
Name the components
What is the difference between these two pictures?
A - Atheroma-plaue
B- Ruptured atheroma-plaque
What are the major complications of atherosclerosis?
Ruptured plaques result in thrombus formation which can lead to emboli. These emboli, depending on where the thrombus formation occured, can cause occlusion which is bad.
Atheroscleorsis can also lead to aneurysms, which are also bad
What are the modifiable and non-modifiable risk factors for atherosclerosis?
Non-Modifiable:
advanced age, male sex, family history, genetics
Modifiable:
smoker, diabetes, hypertension, hyperlipidemia,
Is atherosclerosis an inflammatory process?
Yes
Where does venous thrombosis occur?
Usually in the deep veins of the legs
What three factors make you at high risk for a DVT?
stasis of blood flow
endothelial injury
hypercoagulability
What is this? Bonus: Where is this?
embolus
Bonus: in the lungs
What is the difference between ischemia and hypoxia?
ischemia is the lack of blood flow
hypoxia is the lack of oxygen