The structure of blood vessels.
The composition of mammalian blood.
Differentiation of blood cells. Some of the pluripotent stem cells differentiate into lymphoid stem cells, which then develop into B cells and T cells, two types of lymphocytes that function in the immune response. All other blood cells differentiate from myeloid stem cells.
Blood clotting
Atherosclerosis. These light micrographs contrast a cross section of (a) a normal (healthy) artery with (b) an artery partially blocked by an atherosclerotic plaque. Plaques consist mostly of fibrous connective tissue and smooth muscle cells infiltrated with lipids.
Additional info
- Arteriosclerosis is any hardening (and loss of elasticity) of large arteries and arterioles (small arteries). It is often due to hypertension.
- Artherosclerosis is a hardening of an artery specifically due to an atheromatous plaque. Atherosclerosis is the most common form of arteriosclerosis. Atherosclerosis is characterised by a thickening of the intima with plaques that can contain lipid-laden macrophages ("foam cells"). The plaques contain free lipid (cholesterol, etc.) and are prone to calcification and ulceration.
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